- Electromechanical Printed Circuit Board

Transcription

1 Section 8 Relays - Electromechanical Printed Circuit Board

2 Electromechanical Printed Circuit Board Relays pplication Data Introduction: In the past several years the dry reed relay has become an important product among relay specifiers, primarily because of the tremendous increases in low level switching for computers, business machines, and communication appliances. The dry reed relay has the great advantage of being hermetically sealed and is thus impervious to atmospheric contamination. It is very fast and, when operated within the rated contact loads, it offer a reliable switching component and extremely long life. How Reed Relays Work: The basic element of the reed relay is the glass reed capsule commonly known as a reed switch. reed switch consists of two overlapping, flat, ferromagnetic reeds, separated by a small air gap, sealed in a glass capsule. The reeds are supported at the point where they are sealed into the ends of a glass tube and therefore act as cantilevers. If the free ends of the reeds are placed in a magnetic field, the flux in the gap between the reeds will cause them to pull together. When the magnetic field is removed, the reeds will spring apart due to the spring tension in the reeds. The reeds thus provide a magnetic operating gap and serve as a contact pair to close and open an electrical circuit. typical dry reed switch capsule is shown in Figure. Reeds Supporting Terminal Glass Capsule Supporting Terminal Normally Open Contacts Figure In the basic design, two opposing reeds are sealed into a narrow glass capsule and overlapped at their free ends. The contact area is plated typically with rhodium to produce a low contact resistance when contacts are drawn together. The capsule is made of glass and filled with a dry inert gas and then sealed. The capsule is surrounded by an electromagnetic coil. When the coil is energized, the normally open contacts are brought together; when the coil voltage is removed, the reeds separate by their own spring tension. Some reeds contain permanent magnets for magnetic biasing to achieve normally closed contacts (SPST-NC) or contact combinations. The current rating, which is dependent upon the size of the reed and the type and amount of plating, may range from low level to amp. Effective contact protection is essential when switching loads other then dry resistive loads. dvantages: Sensitive in operation, which enables the reed relay to be driven by low cost IC s. Small Physical Size High Insulation Resistance High Reliability Long Life Low Cost Fast Switching Capability 8/

3 Contact Combinations: The switches used in dry reed relays provide SPST- NO, SPST-NC, contact combinations. The corresponds with the basic switch capsule design (Figure ). The SPST-NC results from a combination of the switch and a permanent magnet strong enough to pull the contacts closed but able to open when coil voltage is applied to the relay coil. In typical true designs, the armature is mechanically tensioned against the normally closed contact, and is moved to the normally open contact upon application of a magnetic field. Magnetic Fields: Reed relays in general can be characterized as susceptible to the influences of external magnetic fields. It is important to keep reed relays at a proper distance from each other because of the possibility of magnetic-interaction between them. Proper magnetic shielding must be used to contain stray magnetic fields. When installing reed relays into equipment, one should be aware of the devices within that equipment which can produce magnetic fields. The relays being installed into that equipment should be positioned as far away as possible from any stray magnetic fields and should be shielded to prevent false operations. general rule is to space reed relays no closer together than 0.5 inches. Electrical Characteristics: Sensitivity: The input power required to operate dry reed relays is determined by the sensitivity of the particular reed switch used, by the number of switches operated by the coil, by the permanent magnet biasing (if used), and the efficiency of the coil and the effectiveness of its coupling to the blades. Minimum input required to affect closure ranges from the very low milliwatt level for a single sensitive capsule to several watts for multi-pole relays. Operate Time: The coil time constant, overdrive on the coil, and the characteristics of the reed switch determine operate time. With the maximum overdrive voltage applied to the coil, reed relays will operate in approximately the 200 microsecond range. When driven at rated coil voltage, usually the relays will operate at about one millisecond. Release Time: With the coil unsuppressed, dry reed switch contacts release in a fraction of a millisecond. contacts will open in as little as 50 microseconds. Magnetically biased SPST-NC and switches re-close from 0 microseconds to millisecond respectively. If the relay coil is suppressed, release times are increased. Diode suppression can delay release times for several milliseconds, depending on coil characteristics, coil voltage, and reed release characteristics. Contact Bounce: Dry reed contacts bounce on closure as with any other hard contact relay. The duration of bounce on a Dry reed switch is typically very short, and is in part dependent on drive level. In some of the faster devices, the sum of the operate time and bounce is relatively constant. s drive is increased, the operate time decreases with bounce time increasing. The normally closed contacts of a switch bounce more then the normally open contacts. Magnetically biased SPST-NC contacts exhibit essentially the same bounce characteristics as switches /3

4 Electromechanical Printed Circuit Board Relays pplication Data Contact Resistance: The reeds (blades) in a dry reed switch are made of a magnetic material which has a high volume resistivity; terminal-toterminal resistance is somewhat higher than in some other types of relays. Typical specification limits for initial resistance of a reed relay is ohms max (200 milliohms). Insulation Resistance: dry reed switch will have an insulation resistance of 2 to 3 ohms or greater. When it is assembled into a relay, parallel insulation paths reduce this to typical values of 3 ohms. Exposure to high humidity or contaminating environments can appreciably lower final insulation resistance. Thermal EMF: Since thermally generated voltages result from thermal gradients within the relay assembly, relays built to minimize this effect often use sensitive switches to reduce required coil power, and thermally conductive materials to reduce temperature gradients. Noise: Noise is defined as a voltage appearing between terminals of a switch for a few milliseconds following closure of the contacts. It occurs because the reeds (blades) are moving in a magnetic field and because voltages are produced within them by magnetostrictive effects. From an application standpoint, noise is important if the signal switched by the reed is to be used within a few milliseconds immediately following closure of the contacts. When noise is critical in an application, a peak-to-peak limit must be established by measurement techniques, including filters which must be specified for that particular switching application. Environmental Characteristics: Reed relays are used in essentially the same environments as other types of relays. factor influencing their ability to function would be temperature extremes beyond specified limits. ibration: The reed switch structure, with so few elements free to move, has a better defined response to vibration than other relay types. With vibration inputs reasonably separated from the resonant frequency, the reed relay will withstand relatively high inputs, 20 g s or more. t resonance of the reeds, the typical device can fail at very low input levels. Typical resonance frequency is 2 khz. Shock: Dry reed relays will withstand relatively high levels of shock. contacts are usually rated to pass 30 to 50 g s, milliseconds, half sign wave shock, without false operation of contacts. Switches exposed to a magnetic field that keep the contacts in a closed position, such as in the biased latching form, demonstrate somewhat lower resistance to shock. Normally closed contacts of mechanically biased switches may also fail at lower shock. Normally closed contacts of mechanically biased switches may also fail at lower shock levels. 8/

5 Temperature: Differential expansion or contraction of reed switches and materials used in relay assemblies can lead to fracture of the switches. Reed relays are capable of withstanding temperature cycling or temperature shock over a range of at least -50 C to + 0 C. These limits should be applied to the application to prevent switch failure. Contact Protection: Tungsten lamp, inductive and capacitive discharge load are extremely detrimental to reed switches and reduce life considerably. Illustrated below are typical suppression circuits which are necessary for maximum contact life. INPUT R INPUT R Figure 2 INPUT Figure 3 INPUT R R Initial cold filament turn-on current is often 6 times higher than the rated operating current of the lamp. current limiting resistor in series with the load, or a bleeder resistor across the contacts will suppress the inrush current. The same circuits can be used with capacitive loads, as shown in Figure Figure 2. 3 INPUT INPUT INPUT INPUT Figure 4 Figure 3 DC inductive loads call for either a diode or a thyristor Figure to be placed 4 across the load. These circuits are necessary to protect the contacts when inductive loads are to be switched in a circuit, as shown in Figure /5

6 dvantages of the PCB Relays Some control system designs require the relay to be mounted directly on the Printed Circuit Board (PCB). These parts will need to be small enough to make PCB mounting practical and more easy to manufacture. The Magnecraft PCB-mounted relays can fit a variety of applications. The line is perfect for low level DC switching and some can handle C switching. lso, many are rated for UL approved industrial applications. - DTL Compatible - Up to 5k of Surge Resistance Coils - UL Recognized for /6 HP 20C Model 276 SIPS & DIPS Electronic control circuits built on PCB s demand relays that can be populated with the same machinery currently used in the production lines. The Magnecraft SIPS and DIPS are built in small industry standard package styles that do not require unique machinery to populate. The SIPS and DIPS can even withstand a lead-free solder re-flow process so a pin-thru-paste application is possible Up to /3 HP 20C Switching - UL Recognized - Can Be Configured in a ariety of Contact Materials and Mounting Styles - Up to 20 - Less than Cubic Inch - UL Recognized and meets CS and TÜ Specifications 49 8/

7 - RoHS Compliant - Designed for Simple Routing on PCB - Requires only 0.5 Inch Spacing from djacent Relays 7SIP - 50 G Shock Resistance - RoHS Compliant - Designed for Simple Routing on PCB 7DIP - vailable with or without Clamping Diode - and SPST-NC ersions vailable - Wide ariety of Standard Parts - RoHS Compliant 7DIP - 50 G Shock Resistance - RoHS Compliant 72DIP /7

8 7SIP, 7DIP, 7DIP PCB Mount Miniature Reed Relays/ and SPST 0.5 mp Rated Requires Only 0.5 Inch Spacing from djacent Relays RoHS Compliant Pins are 0.20 Inch on Center for Simple Routing on PCB 7SIP Can Sustain Lead-Free Re-flow for Pin-Thru-Paste ssembly General Specifications Contact Characteristics Number and type of Contacts Contact materials Current rating Switching voltage Minimum Switching Requirement Minimum Units m 7SIP SPST Rhodium Coil Characteristics oltage Range Operating Range verage consumption Drop-out voltage threshold % of Nominal W % to % 0.29 % Performance Characteristics Electrical Life Mechanical Life Operating time (response time) Rated insulation voltage Dielectric strength rms voltage Rated Current (Resistive) Unpowered Between coil and contact Between poles Between contacts ms 50,000,000 0,000, Environment mbient air temperature around the device ibration resistance Shock resistance Weight Storage Operation Operational C C g-n g-n grams , -200 Hz 50 7SIP 0.76 MX (9.3) 0.29 MX (7.27) 0.25 MIN. (3.8) 0.34 (8.55) 8/ (.97) (0.5) 0.6 (5.2) 0.2 (5) 0.3 (7.5) DRWING ENLRGED TO 200% OF CTUL SIZE 0.0 (0.25) WHEN SPCING SIP ND DIP RELYS, THE RELYS REQUIRE /2 INCH SPCING FROM THE SIDE OF THE DJCENT RELYS Circuit Board Pin Spacing iewed from component side

9 Miniature Reed Relays DIP 7DIP 7DIP Rhodium DIP DPST-NO Rhodium DIP SPST Rhodium % to % 0.29 % % to % 0.29 % % to % 0.29 % 50,000,000 0,000, ,000,000 0,000, ,000,000 0,000, , -200 Hz , -200 Hz , -200 Hz 50 7DIP & 7DIP 0.79 MX (20.4) 0.29 MX (7.37) C ie 0.03 (0.64) 0.3 MX (7.62) (0.5) 0.4 (.2) 0.6 (5.24) 0.2 (3) 0.38 (9.65) 0.0 (0.25) DRWING ENLRGED TO 200% OF CTUL SIZE 8/9

10 7SIP, 7DIP, 7DIP PCB Mount Miniature Reed Relays/ and SPST 0.5 mp Rated Can Survive High Shock to void Damage in Harsh Conditions Can Sustain Lead-Free Re-flow for Pin-Thru-Paste ssembly 7DIP Pins are 0. Inch on Center for Simple Routing on PCB Standard Part Numbers Nominal Input oltage Nominal Coil Resistance (Ω) 500 Ω 2000 Ω 500 Ω 2200 Ω 500 Ω 2200 Ω 500 Ω 2200 Ω Part Number W7SIP- W7SIP-3 W7SIP-5 W7SIP-22 W7SIP-23 W7SIP-24 W7SIP-6 W7SIP-8 W7SIP- W7SIP-8 W7SIP-25 W7SIP-26 BOLD-FCED PRT NUMBERS RE NORMLLY STOCKED Contact Configuration SPST-NC SPST-NC SPST-NC w/ Clamping Diode w/ Clamping Diode w/ Clamping Diode SPST-NC w/ Clamping Diode SPST-NC w/ Clamping Diode SPST-NC w/ Clamping Diode Figure B B B C C C D D D 500 Ω 2000 Ω 500 Ω 2000 Ω W7DIP- W7DIP-3 W7DIP-4 W7DIP-5 W7DIP-7 W7DIP-8 w/ Clamping Diode w/ Clamping Diode w/ Clamping Diode E E E F F F 500 Ω 2200 Ω 500 Ω 2200 Ω 500 Ω 2200 Ω 500 Ω 2200 Ω 500 Ω 2200 Ω 500 Ω 2200 Ω W7DIP-2 W7DIP-4 W7DIP-5 W7DIP-7 W7DIP-9 W7DIP- W7DIP-2 W7DIP-4 W7DIP-5 W7DIP-7 W7DIP-9 W7DIP-20 W7DIP-2 W7DIP-23 W7DIP-24 W7DIP-25 W7DIP-27 W7DIP-28 w/ Clamping Diode w/ Clamping Diode w/ Clamping Diode SPST-NC SPST-NC SPST-NC SPST-NC w/ Clamping Diode SPST-NC w/ Clamping Diode SPST-NC w/ Clamping Diode DPST-NO DPST-NO DPST-NO DPST-NO w/ Clamping Diode DPST-NO w/ Clamping Diode DPST-NO w/ Clamping Diode G G G H H H I I I J J J K K K L L L 8/

11 Miniature Reed Relays continued WIRING DIGRMS TOP IEW (+) (-)5 7 Figure WITHOUT DIODE Figure B SPST-NC WITHOUT DIODE Figure C WITH DIODE 3(+) (-)5 7 Figure D SPST-NC WITH DIODE Figure E WITHOUT DIODE 2(+) 6 7 Figure F WITH DIODE Figure G WITHOUT DIODE 2(+) 6 7 Figure H WITH DIODE MX (7.27) Figure I SPST-NC WITHOUT DIODE 2(+) 6 7 Figure J SPST-NC WITH DIODE Figure K DPST-NO WITHOUT DIODE 2(+) (-)6 7 Figure L DPST-NO WITH DIODE 0.0 (0.25) 0.79 MX (20.4) 0.4 (.2) 0.6 (5.24) 0.2 (3) 7SIP 0.29 CIRCUIT MX BORD PIN SPCING IEWED (7.37) FROM COMPONENT SIDE Circuit (TOP Board IEW) Pin Spacing iewed from component side (9.65) 0.3 MX (7.62) 0.0 (0.25) 0. IN GRID (2.54 MM) 7DIP & 7DIP CIRCUIT BORD PIN SPCING IEWED Circuit FROM Board COMPONENT Pin Spacing SIDE iewed (TOP from IEW) component side CIRCUIT BORD PIN SPCINGS ENLRGED TO 200% OF CTUL SIZE IN GRID (2.54 MM) 8/

12 72DIP PCB Mount Miniature Reed Relay/ and DPDT 0.25 mp Rated Can Survive High Shock to void Damage in Harsh Conditions Can Sustain Lead-Free Re-flow for Pin-Thru-Paste ssembly RoHS Compliant Sealed Construction in Standard 0. Inch on Center Pin Configuration General Specifications Contact Characteristics Number and type of Contacts Contact materials Current rating Switching voltage Minimum Switching Requirement Minimum Units m 72DIP Rhodium DIP DPDT Rhodium Coil Characteristics oltage Range Operating Range verage consumption Drop-out voltage threshold % of Nominal W % to % 0.29 % % to % 0.29 % Performance Characteristics Electrical Life Mechanical Life Operating time (response time) Rated insulation voltage Dielectric strength rms voltage Rated Current (Resistive) Unpowered Between coil and contact Between poles Between contacts ms 50,000,000 0,000, ,000,000 0,000, (0.64) Environment mbient air temperature around the device ibration resistance Shock resistance Weight 0.79 MX (20.4) 72DIP Storage Operation Operational 0.29 MX (7.37) 0.3 MX (7.62) C C g-n g-n grams , -200 Hz MX (20.32) 72DIP DPDT Circuit Board Pin Spacing iewed from component side 0.4 MX (.2) MX (.2) , -200 Hz IN GR (2.54 MM 0.02 (0.5) 0.4 (.2) 0.6 (5.24) 0.2 (3) 0.38 (9.65) WHEN SPCING DIP RELYS, THE RELYS REQUIRE /2 INCH SPCING FROM THE SIDE OF THE DJCENT RELYS 0.0 (0.25) 0.2 (3) 0. (2.5) 0.6 (5.24) (0.64) 0.05 (.2) 0.08 (2.09) 0.3 ± (7.62) 7 8/2 DRWINGS ND PIN SPCING ENLRGED TO 200% OF CTUL SIZE

13 Standard Part Numbers Nominal Input oltage Nominal Coil Resistance (Ω) 200 Ω 2200 Ω 200 Ω 2200 Ω Part Number W72DIP- W72DIP-3 W72DIP-4 W72DIP-5 W72DIP-7 W72DIP-8 BOLD-FCED PRT NUMBERS RE NORMLLY STOCKED Contact Configuration w/ Clamping Diode w/ Clamping Diode w/ Clamping Diode Figure B B B 200 Ω 2200 Ω 200 Ω 2200 Ω W72DIP-3 W72DIP-33 W72DIP-34 W72DIP-35 W72DIP-37 W72DIP-38 w/ Clamping Diode w/ Clamping Diode w/ Clamping Diode C C C D D D 200 Ω 3200 Ω 200 Ω 3200 Ω W72DIP-4 W72DIP-45 W72DIP-46 W72DIP-47 W72DIP-49 W72DIP-50 w/ Clamping Diode w/ Clamping Diode w/ Clamping Diode E E E F F F 46 Ω 266 Ω 66 Ω 46 Ω 266 Ω 66 Ω W72DIP-7 W72DIP-9 W72DIP-20 W72DIP-2 W72DIP-23 W72DIP-24 DPDT DPDT DPDT DPDT w/ Clamping Diode DPDT w/ Clamping Diode DPDT w/ Clamping Diode G G G H H H WIRING DIGRMS TOP IEW CIRCUIT Circuit BORD Board Pin PIN Spacing SPCING IEWED iewed FROM from COMPONENT component side SIDE (TOP IEW) IN GRID (2.54 MM) Figure WITHOUT DIODE 2(+) (-) 6 7 Figure B WITH DIODE Figure C WITHOUT DIODE 2(+) (-) 6 7 Figure D WITH DIODE (-) IN GRID (2.54) MM) (+) (-) 6 7 Figure E WITHOUT DIODE Figure F WITH DIODE Figure G DPDT WITHOUT DIODE 2(+) 6 7 Figure H DPDT WITH DIODE 8/3

14 Low Profile PCB Mount Power Relay/SPST and 7 - mp Rated DTL Compatible Single-Side Stable Design CIRCUIT BORD PIN SPCING NC NO COM 0. IN GRID (2.54 MM) UL Recognized File No. E90964 /6 HP Rating for SPST Models, / for Models + 5k Surge Resistance Coil to Contact Meets International Spacing of 4mm COIL General Specifications 0.8 MX (UL 508) Contact Characteristics (20.49) Number and type of Contacts Contact materials Current rating Switching 0.5 MX voltage (2.7) Minimum Switching Requirement Minimum Units HP m 276XX 7 mp Silver lloy /60 Hz 30 20C 0 276XX mp Silver lloy /60 Hz 30 20C 0 Coil Characteristics oltage Range Operating Range verage consumption Drop-out voltage threshold 0.39 MX Performance Characteristics () Electrical Life Mechanical Life Operating time (response time) Dielectric % of Nominal Rated Current (Resistive) Unpowered Between coil and contact Between contacts 0.4 Environment Product certifications (3.5) 0.02 Standard DI. (0.5) version mbient air temperature 2 COIL Storage TERMINLS around the device Operation ibration resistance Operational Shock resistance Weight W % to % 0.2 % 0,000 5,000,000 ms 0.05 X (0.4 X 0.8) 00 3 PLCES UL C C g-n 3, -55 Hz g-n 20 grams % to % 0.2 % 0,000 5,000, UL , -55 Hz WIRING DIGRMS TOP IEW TERMINL WIRING (BOTTOM IEW) NC NO COM NO COM 276XX 276XX 8/4

15 Standard Part Numbers Nominal Input oltage 6 DC 6 DC Nominal Coil Resistance (Ω) 25 Ω 80 Ω 720 Ω 2880 Ω 25 Ω 80 Ω 720 Ω 2880 Ω BOLD-FCED PRT NUMBERS RE NORMLLY STOCKED Part Number 276XXH-5D 276XXH-6D 276XXH-2D 276XXH-24D Contact Configuration 276XXH-5D CIRCUIT BORD PIN SPCING 276XXH-6D 276XXH-2D 276XXH-24D NC NO COM Part Number Builder 276 Series MX (2.7) 0.8 MX (20.49) XX Contact Configuration XX = SPST - NO XX = H Type of Seal H = Epoxy Sealed + -2 Coil oltage 5 = 5DC 6 = 6DC 2 = 2DC 24 = 24DC COIL CIRCUIT BORD PIN SPCING IEWED CIRCUIT FROM BORD COMPONENT PIN SPCING SIDE (TOP IEW) NC NO COM D Current Type D = DC Coil 0. IN GRID (2.54 MM) 0. IN GRID (2.54 MM) 0.39 MX () 0.8 MX (20.49) MX (3.5) (2.7) 0.02 DI. (0.5) 2 COIL TERMINLS X 0.03 (0.4 X 0.8) 3 PLCES COIL DRWING ND PIN SPCING ENLRGED TO 200% OF CTUL SIZE 8/5

16 976 Relay Slim-Line PCB Mount Relay/One and Two Pole 5-20 mp Rated (DC and C) Ratings Up to 20 mps for High Current Switching in a PCB pplication 8mm Coil to Contact Clearance Meets International Standards UL Recognized File No. E922 vailable C Coil oltages Sealed Package that is Compatible with Board Washing Processes. General Specifications (UL 508) Contact Characteristics Number and type of Contacts Contact materials Thermal (Carrying) Current Maximum Switching oltage Switching oltage Coil Characteristics oltage Range Operating Range verage consumption Drop-out voltage threshold Performance Characteristics Electrical Life Mechanical Life Operating time (response time) Dielectric % of Nominal Rated Current (Resistive) Unpowered Between coil and contact Between contacts Units Resistive Resistive W ms 976XXH 976XXH 976XXH 2 mp Silver lloy /60Hz /60Hz (NO) (NC) % to % 85% to % % % 0,000,000, XX97H 976XX97H 976XX97H 20 mp Silver lloy /60 Hz /60 Hz % to % 85% to % % % 0,000,000, XXBH 976XBXH 5 mp DPDT Silver lloy /60 Hz % to % 85% to % % % 0,000,000, Environment Product certifications mbient air temperature around the device ibration resistance Shock resistance Weight Standard version Storage Operation Operational C C g-n g-n grams UL, TU , - 55 Hz 7 UL, TU , - 55 Hz 7 UL, TU , - 55 Hz 7 Part Number Builder 976 Series 976 XBX Contact Configuration XX = SPST - NO XX = XBX = DPDT 97 Construction 97 = 20 Single Pole Relay Blank = Not 20 Construction H Type of Seal H = Epoxy Sealed -24 Coil oltage 5 = 6 = 6 DC 2 = 24 = 24 = 24 C 20 = 20 C 240 = 240 C Current Type D = DC Coil = C Coil 8/6

17 Standard Part Numbers BOLD-FCED PRT NUMBERS RE NORMLLY STOCKED Nominal Input oltage Nominal Coil Resistance (Ω) Part Number Supercedes Contact Configuration Figure 5 mp, DC Operated Coil 47 Ω 976XBXH-5D 76EURCPCX-6 DPDT 6 DC 68 Ω 976XBXH-6D 76EURCPCX-62 DPDT 270 Ω 976XBXH-2D 76EURCPCX-63 DPDT 0 Ω 976XBXH-24D 76EURCPCX-64 DPDT 20 mp, DC Operated Coil 47 Ω 976XX97H-5D 76EURCPCX-46 B 6 DC 68 Ω 976XX97H-6D 76EURCPCX-47 B 270 Ω 976XX97H-2D 76EURCPCX-48 B 0 Ω 976XX97H-24D 76EURCPCX-49 B 2 mp, DC Operated Coil 47 Ω 976XXH-5D 76EURCPCX-4 C 6 DC 68 Ω 976XXH-6D 76EURCPCX-5 Circuit Board C Pin Spacing 270 Ω 976XXH-2D 76EURCPCX-6 iewed from C component side 0 Ω 976XXH-24D 76EURCPCX-7 C 5 mp, C Operated Coil 24 C 50/60 Hz 250 Ω 976XBXH-24 DPDT 0.97 MX 20 C 50/60 Hz 5600 Ω 976XBXH-20 DPDT Figure (5.0) 240 C 50/60 Hz Ω 976XBXH-240 DPDT 20 mp, C Operated Coil Circuit Board Pin Spacing 24 C 50/60 Hz 250 Ω 976XX97H-24 B iewed from component side 20 C 50/60 Hz 5600 Ω 976XX97H-20 B 240 C 50/60 Hz Ω 976XX97H-240 B 2 mp, C Operated Coil 0.97 MX 24 C 50/60 Hz Figure 250 Ω (5.0) 976XXH TYP C MX (.3) 20 C 50/60 Hz 5600 Ω 976XXH-20 C (20.0) 240 C 50/60 Hz Ω 976XXH-240 C MX MX Figure B (7.5) (.0).6 MX (29.5) 0.5 MX MX (20.0) (3) CIRCUIT BORD PIN SPCING IEWED Circuit FROM Board 0. COMPONENT IN Pin GRID Spacing SIDE iewed from component side (TOP (2.54 IEW) MM) MX (3) MX (25.5) 0. IN GRID (2.54 MM) Figure B MX (.0) Figure 0.97 MX (5.0) Figure C TYP. MX (.3) (20.0) MX MX (7.5) (7.0) 0.05 TYP. (.3) MX 5.5) 0.4 MIN (3.5) 0.02 TYP. (0.04) DRWING ND PIN SPCINGS SHOWN T 0% OF CTUL SIZE.6 MX 0.5 MX (29.5) (3) SCHEMTIC Figure C WIRING DIGRMS TOP IEW MX (20.0) 0.05 TYP. (.3) MX (7.0) MX (20.0) SCHEMTIC Figure B 0. IN GRID (2.54 MM) Figure DPDT 5 MP Figure C MX (20.0) MX (.0) MX (20.0) Figure B 20 MP MX (7.0) MX (20.0) Figure 2 MIN.5) 0.02 TYP. (0.04) Figure DPDT 5 MP Figure B MP TYP. (.3) Figure C 2 MP SCHEMTIC MX (20.0) 8/7

18 49 PCB Mount Enclosed Relay/ 3 - mp Rated Small size ariety of Mounting Configurations for Wide Selection of pplications UL Recognized File No. E922 vailable in 3DC (90Ω) /3 HP Rating at 20C General Specifications (UL 508) Contact Characteristics Number and type of Contacts Contact materials Current rating Switching voltage Minimum Switching Requirement Units HP HP Pilot Duty m mp STO Normally Open Normally Closed Silver lloy /60 Hz C 240 C 277 C 277 C B300 (20/240 C) 0 Coil Characteristics oltage Range Operating Range verage consumption Drop-out voltage threshold % of Nominal W % to % 0. % Performance Characteristics Electrical Life Mechanical Life Operating time (response time) Dielectric Environment Product certifications mbient air temperature around the device ibration resistance Shock resistance Weight Rated Current (Resistive) Unpowered Between coil and contact Between contacts Standard version Storage Operation Operational ms C C g-n g-n grams 0,000,000, UL , to 55 Hz 42 8/8

19 mp STO 3 mp SIL Normally Open Normally Closed Normally Open Normally Closed Silver lloy Fine Silver /60 Hz /60 Hz C 277 C 240 C 277 C 240 C 277 C 240 C 277 C B300 (20/240 C) 0 B300 (20/240 C) % to % 0. % % to % 0. % ,000 0,000,000, ,000, UL , to 55 Hz 42 UL , to 55 Hz 42 8/9

20 49 PCB Mount Enclosed Relay/ 3 - mp Rated continued DIMENSIONS SHOWN IN INCHES ND (MILLIMETERS) Small size ariety of Mounting Configurations for Wide Selection of pplications 0.76 MX (9.3) 0.2 (5.3) ) UL Recognized File No. E MX (3.7).4 MX Standard 0.26 Part Numbers (29.) Nominal (6.5) Input oltage Nominal Coil Resistance (Ω) 3 mp, Style REC 3 DC 90 Ω Ω (.4) Ω 6 DC 0.8 TYP. 4 Ω(0.64) (4.72) 640 Ω 6560 Ω (0.64) 5 mp, Style REC and REC2 235 Ω 350 Ω Ω 6 DC 4 Ω (5) 640 Ω 6560 Ω mp, Style REC 0 Ω 600 Ω 24 STYLE DC REC 2400 Ω mp, Style RC4 235 Ω 350 Ω mp, Style RC4 Part Number Builder 49 RC4 Series Footprint 49 REC = Narrow Footprint REC2 = Wide Footprint RC4 = Top Mounting Bracket vailable in 3DC (90Ω) 0 Ω 2400 Ω 0.76 MX (9.3) 0.38 (9.63) W Rating G = (REC) 5 STO or 3 SIL G (RC4) = STO F = (REC2) 5 STO or 3 SIL W = STO.25 MX (3.7) /3 HP Rating at 20C W49RC4G-5DC-STO W49RC4G-2DC-STO 0.3 W49RC4W-5DC-STO (3.3) W49RC4W-24DC-STO STYLE REC2.02 (25.7) 0.92 (23.2).34 MX (34.) BOLD-FCED PRT NUMBERS RE NORMLLY STOCKED 0.26 Part Number Contact Configuration (6.5) W49RECG-3DC-SIL W49RECG-5DC-SIL W49RECG-2DC-SIL (.4) W49REC2F-6DC-SIL 36W49REC2F-2DC-SIL 0.2 W49REC2F-24DC-SIL (34.4) (5.3) (5) (.5) (2.5) W49RECG-5DC-STO W49RECG-2DC-STO W49RECG-24DC-STO W49REC2F-6DC-STO W49REC2F-2DC-STO W49REC2F-24DC-STO 0.69 (7.4) W49RECW-5DC-STO W49RECW-2DC-STO W49RECW-24DC-STO -5DC Coil oltage 3DC = 3 DC 5DC = 6DC = 6 DC 2DC = 24DC = -SCO Contact Material SIL = Fine Silver Contacts STO = Silver lloy Contacts 0.26 (6.5) 0.0 ( ST REC and RC4 CIRCUIT BORD PIN SPCING IEWED FROM COMPONENT SIDE (TOP IEW) REC2 COIL NO STYLE REC & 8/ (3.46) COIL COM 0.3 (7.95) 0.84 (2.4) NC NO 0.59 (5.09) 0. IN GRID (2.54 MM) 0.5 (2.89) COM PIN SPCINGS SHOWN T 0% OF CTUL SIZE COIL 0.59 (5.06).05 (26.57) NC.02 (25.78) W

21 DIMENSIONS SHOWN IN INCHES ND (MILLIMETERS) STYLE REC DIMENSIONS SHOWN IN INCHES ND (MILLIMETERS) 0.76 MX (9.3).25 MX (3.7) 0.76 MX (9.3) STYLE REC2.25 MX (3.7) N IN INCHES ND (MILLIMETERS) 0.76 MX (9.3).4 MX (29.).4 MX (29.) MX MX (29.) (9.3) 0.2 (5.3) 0.2 (5.3) (6.5) (3.8) 0.26 (6.5).25 MX (3.7).25 MX 0.26 (3.7) (29.) (6.5) (.4) TYP. (0.64) (4.72) (0.64) (.4).34 MX (0.64) 0.8 (34.) TYP. (4.72) 0.59 (5).4 MX (29.) 0.92 (23.2).4 MX (0.64) 0.76 MX (9.3) 0.26 (6.5) 0.26 (6.5) 0.26 (6.5) 36 (34.4) 36 (34.4).25 MX (3.7) 0.56 (4.2) (.4) (5) (.4).25 MX (3.7) 0.59 (5) 0.33 (8.3) 0.45 (.5) 0.45 (.5) 0.09 (2.5) 0.09 (2.5).34 (34.3 ( P. 5.5) C ) O 0.09 (2.5) 0.59 (5.09) (0.64) 0.38 (9.63).34 MX (34.) 0.2 (5.3) 0.54 (3.8) 36 (34.4) 0.92 (23.2) 0.69 (7.4) 0.5 (2.89) (.4) STYLE REC (5) (.5) STYLE RC4 STYLE REC 0.09 (2.5).25 MX (3.7) (25.7) (4.2) 0.59 (5) 0.2 (5.3) 0.33 (8.3) 0.69 (7.4) 0.38 (9.63) (.4) 0.38 (9.63) 0.3 (7.9) (0.64) 0.84 (2.4) 0.3 (3.3) STYLE 0.76 REC2 0.3 (9.3) (3.3) STYLE REC (25.7) (3.8).02 (25.7) 0.3 STYLE RC4 (3.3) WIRING DIGRMS REC STYLE COIL (6.5) REC2 TOP IEW NO REC and RC4 REC COIL COM NC 0.5 (.4) COM COIL NO (3.8) REC and RC4 ( (0.64) (3.46) (7.9) COIL 0.84COM NC (5.09) (2.89) COM (2.4) REC2 NC COIL ( NO COIL IN GRID 0.59 (3.46) NO STYLE REC & RC4 (5.09) (2.89) (7.95) 0.84 (2.54 MM) (5.06) NC COIL (9.3) (2.4) NO STYLE REC2 (26.57) COM IN GRID 0.59 (7.95) 0.84 (25.78) (2.54 MM) WIRING DIGRMS (5.06).05 (2.4) (BOTTOM IEW) (26.57) DRWINGS SHOWN T 0% OF CTUL SIZE STYLE RC4 8/2 NC COIL

22 8 Section Cross Reference Guide Potter & Brumfield JWS-7- JWS-7-3 JWS-7-5 JWS-7-2 JWS-7-4 JWS-7-5 JWS-7-6 JWS-7-8 JWS-7- JWS-7-7 JWS-7-9 JWS-7-30 Potter & Brumfield JWD-7- JWD-7-3 JWD-7-5 JWD-7-7 Potter & Brumfield JWD-7-5 JWD-7- JWD-7-2 JWD-7-4 JWD-7-5 JWD-7-7 JWD-7-9 JWD-7-20 JWD-7-2 JWD-7-23 JWD-7-24 JWD-7-25 JWD-7-27 JWD-7-28 Potter & Brumfield JWD-72- JWD-72-3 JWD-72-4 JWD-72-5 JWD-72-7 JWD-72-8 JWD JWD JWD JWD JWD-72-6 JWD Magnecraft W7SIP- W7SIP-3 W7SIP-5 W7SIP-22 W7SIP-23 W7SIP-24 W7SIP-6 W7SIP-8 W7SIP- W7SIP-8 W7SIP-25 W7SIP-26 Magnecraft W7DIP- W7DIP-3 W7DIP-4 W7DIP-5 W7DIP-7 W7DIP-8 Magnecraft W7DIP-2 W7DIP-4 W7DIP-5 W7DIP-7 W7DIP-9 W7DIP- W7DIP-2 W7DIP-4 W7DIP-5 W7DIP-7 W7DIP-9 W7DIP-20 W7DIP-2 W7DIP-23 W7DIP-24 W7DIP-25 W7DIP-27 W7DIP-28 Magnecraft W72DIP- W72DIP-3 W72DIP-4 W72DIP-5 W72DIP-7 W72DIP-8 W72DIP-4 W72DIP-45 W72DIP-46 W72DIP-47 W72DIP-49 W72DIP-50 W72DIP-3 W72DIP-33 Gordos B-9 74B-5 74B-7 74B B- 74B-6 74B-8 Gordos Gordos B-3 83B-5 83B-7 83B-4 83B-6 83B Gordos 836C- 836C-3 836C-5 836C-2 836C-4 836C-6 83C- 83C-3 83C-5 83C-2 83C-4 83C-6 835C- 835C-3 Hamlin HE HE HE HE362B0500 HE362B200 HE362B2400 HE3625 HE3622 HE36224 HE362B05 HE362B2 HE362B24 Hamlin HE72500 HE72200 HE HE725 HE722 HE7224 HE72B0500 HE72B200 HE72B2400 HE72B05 HE72B2 HE72B24 HE HE HE HE72205 HE7222 HE72224 Hamlin HE72R0500 HE72R200 HE72R2400 HE72R05 HE72R2 HE72R24 HE72C0500 HE72C200 HE72C2400 HE72C05 HE72C2 HE72C24 HE72E0500 HE72E200 8/22

23 Meder SIL L SIL2-75-7L SIL L SIL D SIL2-75-7D SIL D Meder DIP05-75-L DIP2-75-L DIP24-75-L DIP05-75-D DIP2-75-D DIP24-75-D Meder DIP05-75-L DIP2-75-L DIP24-75-L DIP05-75-D DIP2-75-D DIP24-75-D DIP05-B75-L DIP2-B75-L DIP24-B75-L DIP05-B75-D DIP2-B75-D DIP24-B75-D DIP L DIP L DIP L DIP D DIP D DIP D Meder DIP05-C75-5L DIP2-C75-5L DIP24-C75-5L DIP05-C75-5D DIP2-C75-5D DIP24-C75-5D SRC Devices DSS45 DSS42 DSS424 DSS4B05 DSS4B2 DSS4B24 DSS45B DSS42B DSS424B DSS4B05B DSS4B2B DSS4B24B SRC Devices PRM037 PRM038 PRM039 PRM037B PRM038B PRM039B SRC Devices PRM5 PRM2 PRM24 PRM5B PRM2B PRM24B PRMB05 PRMB2 PRMB24 PRMB05B PRMB2B PRMB24B PRM205 PRM22 PRM224 PRM205B PRM22B PRM224B SRC Devices PRMC05 PRMC2 PRMC24 PRMC05B PRMC2B PRMC24B Coto Coto Coto Coto Spartin 8L L L L L L L L L L L L L L L L L L /23

24 Section 8 Magnecraft W72DIP-34 W72DIP-35 W72DIP-37 W72DIP-38 Magnecraft 976XBXH-5D 976XBXH-6D 976XBXH-2D 976XBXH-24D 976XX97H-5D 976XX97H-6D 976XX97H-2D 976XX97H-24D 976XX97H-48D 976XXH-5D 976XXH-6D 976XXH-2D 976XXH-24D 976XXH-48D 976XBXH XBXH XBXH XX97H XX97H XX97H XXH XXH XXH-240 Magnecraft W49ECG-3DC-SIL W49ECG-5DC-SIL W49ECG-2DC-SIL W49ECG-5DC-SCO W49ECG-2DC-SCO W49ECG-24DC-SCO W49ECW-5DC-SCO W49ECW-2DC-SCO W49ECW-24DC-SCO Cross Reference Guide continued Hamlin HE72E2400 HE72E05 HE72E2 HE72E24 Supercedes Magnecraft 76EURCPCX-6 76EURCPCX-62 76EURCPCX-63 76EURCPCX-64 76EURCPCX-46 76EURCPCX-47 76EURCPCX-48 76EURCPCX-49 76EURCPCX-50 76EURCPCX-4 76EURCPCX-5 76EURCPCX-6 76EURCPCX-7 76EURCPCX-8 Cornell Dubilier 653-3K 653-6K 653-2K 603-6B 603-2B B 63-6B 63-2B 63-24B Coto Potter & Brumfield RTE24005F RTE24006F RTE2402F RTE24024F RTD4005F RTD4006F RTD402F RTD4024F RTD4048F RTB4005F RTB4006F RTB402F RTB4024F RTB4048F RTE24524 RTE2465 RTE24730 RTD34524 RTD3465 RTD34730 RTB4524 RTB465 RTB4730 Gordos 835C-5 835C-2 835C-4 835C-6 Omron G2R-24-5DC G2R-24-6DC G2R-24-2DC G2R-24-24DC G2R-4-E-5DC G2R-4-E-6DC G2R-4-E-2DC G2R-4-E-24DC G2R-4-E-48DC G2R-4-5DC G2R-4-6DC G2R-4-2DC G2R-4-24DC G2R-4-48DC G2R-24-24C G2R-24-20C G2R C G2R-4-E-24C G2R-4-E-20C G2R-4-E-240C G2R-4-24C G2R-4-20C G2R-4-240C 8/

25 merican Zettler Z733-2C-5DE Z733-2C-6DE Z733-2C-2DE Z733-2C-24DE Z755-C-5DE Z755-C-6DE Z755-C-2DE Z755-C-24DE Z755-C-48DE romat JW2SN-DC5 JW2SN-DC6 JW2SN-DC2 JW2SN-DC24 JWFSN-DC5 JWFSN-DC6 JWFSN-DC2 JWFSN-DC24 JWFSN-DC /25

26 NOTES: /26