Compact and versatile 2 positions multi wafer selector switch For PCB mounting 25,000 switching cycles with up to 9.0 Ncm switching torque Gold plated contacts: micron Robust metal housing with metal shaft Operating temperature range: -40 to +85 C Various options and customization Standard Product Variety From x 2 to 4 x poles/positions per wafer Up to 8 wafers Shorting or non-shorting.0, 6.0 or 9.0 Ncm switching torque Configurable end stops Possible Customization Shaft dimensions and shape Switching torque Hollow shaft, inner shaft Others Typical Applications Industrial controls Avionics, instrumentation, test systems Medical and audio equipment 65 Rotary Switches
Preference Types Selection Chart Contact Arrangement Number of Function Common Contact Half Discrete Contact Half Wafers (Poles x Positions) Shorting Non-Shorting x 2, endless rotating 08-0 08-04 2 2 x 2, endless rotating 08-20 08-204 x 2, endless rotating 08-0 08-04 20 20 9 8978 6756 454 22 20 20 9 8978 6756 454 22 20 20 9 8978 6756 454 22 b b a a 20 20 9 8978 6756 454 22 c c b b a a d d c c b b a a 20 20 9 8978 6756 454 22 4 4 x 2, endless rotating 08-40 08-404 x 2 08-08-4 2 2 x 2 08-2 08-24 x 2 08-08-4 4 4 x 2 08-4 08-44 2 x 6 08-26 08-264 2 4 x 6 08-226 08-2264 6 x 6 08-26 08-264 4 8 x 6 08-426 08-4264 x 4 08-4 08-44 2 6 x 4 08-24 08-244 9 x 4 08-4 08-44 4 2 x 4 08-44 08-444 4 x 08-4 08-44 2 8 x 08-24 08-244 2 x 08-4 08-44 4 6 x 08-44 08-444 * Common interconnection to be made on PCB. Stop and Fixing Screws Configurable stop screws can be set on any position between 2 and the maximum. Stop screws have to be ordered separately. Packaging Unit Order Number Stop screw M.2 0 pcs. 4224- Stop screw M.2 00 pcs. 4224-0 Fixing screw M2 x 9 0 pcs. 4224-0 Available in Kit Form Mechanism, switching module and shaft are supplied separately. This offers more possibilities to place the switch on the PC-board. Shaft Mechanism Housing Housing Functions (Poles x Positions) Shorting Non-Shorting x 2 427-0 428-0 2 x 6 427-428- x 4 427-428- 4 x 427-2 428-2 View of wafer from front side 5 Switch Mechanism Number of Poles Positions Torque Order Number 6 2 6.0 Ncm 424-0 > 6 2 9.0 Ncm 424-2 Pin 2 Pin Shaft Including Assembly Material Shaft 25 4,8 L Length L No. of Housings Order Number 75 mm 42-05 00 mm 5 42-0 25 mm 7 42-5 50 mm 9 42-20 For other types/options, see type key. Rotary Switches 66
Specifications Mechanical Data Resolution:...2 positions max. (0 indexing) Switching torque (new condition):...0, 6.0 or 9.0 Ncm (+/- 25%), additional wafers may increase switching torque Rotational life:...25,000 switching cycles min. Fastening torque of nut:...200 Ncm max. Electrical Data Function:...From x 2 to 4 x poles/positions per wafer (max. 8 wafers) Switching mode:...shorting or non-shorting Load current:...5 A max. (resistive load) Switching voltage:...42 VDC max. Contact resistance (new condition):...20 mohms max. Insulation resistance:...0 Ohms min. (contact to contact/housing) Switching capacitance:... pf max. (contact to contact) Dielectric withstanding voltage:...500 VDC during 60 seconds Material Data Shaft:...Stainless steel Bushing/housing:...Zinc diecast, zinc plated and passivated Contact plating:...auco (hard gold); µm Insulation material:...wafer: PA6/6T, rotor: Polyacetal (POM) Soldering leads:...alloy copper, tin plated Environmental Data Operating/storage temperature range:...-40 to +85 C IP sealing:...ip60 shaft/front panel sealing Vibration:...0 Grms max. @ 0 to 2000 Hz Flammability:...UL94-HB Packaging Sizes Tray:...0 pcs. Soldering Conditions Hand soldering:...40 C max. during 2 s max. Wave soldering:...280 C max. peak temperature during 5 s max. Switching Modes Non-Shorting (break before make) Contact bridge Contact bridge Contact bridge Contact Contact 2 Contact Contact 2 Contact Contact 2 Shorting (make before break) Contact bridge Contact bridge Contact bridge Contact Contact 2 Contact Contact 2 Contact Contact 2 67 Rotary Switches
9 Selector Switch Type 08 Drawings Switch with 2 Wafers ø4 25 ø7 M2 0,8 5 0,8 5 *L 2,54 7,62 A B A2 B2 9 0,4 ø8,5 6,5,5 0,75 0 8 0 7 20 5 6 2 5 4 2,8 PIN Ø2 22,7 ø 2,5 = =,27 ø COM 7,5 5,08** Pin 2,54 0 x 2,54 Ax = Common water of x Bx = Discrete contact wafer of x Switch with BCD Coding * L - wafer 28 mm 2 wafers 8.6 mm wafers 48.2 mm 4 wafers 58.48 mm per additional wafer + 0.6 mm ** All further steps are in 5.08 mm pitch BCD Coding 2 positions; the coding will be made according to the opposite layout on the printed circuit. If the switch will be composed of component parts the housings A ( x 4) and B ( x 2) have to be ordered. Limiting detent to 0 (BCD) is being done with a stop screw M.2 x 2.5. Bottom view: Hollow Shaft System A = B = 2 C = 4 D = 8 BCD Coding 8 4 2 2 4 5 6 7 8 9 0 2 Hollow Shaft Available for switches up to 4 wafers; inner shaft (Ø 2 mm) to be ordered separately. Inner Shaft Must be ordered separately for switches with hollow shaft. Switch with 2 Drive Shafts Consisting of a hollow outer plus an inner shaft, the inner shaft driving a maximum of wafers with 4 wipers each. Please indicate type of each switch. Top view: Rotary Switches 68
Type Key 0 8 - X X X X - X X X X X Number of Wafers Number of Poles per Wafer Factory set character Switching Mode - Shorting 4 - Non-shorting Torque - 6.0 Ncm M -.0 Ncm N - 9.0 Ncm Factory Set End Stop 00 - Standard - pos. 0-0 pos. 09-9 pos. 08-8 pos. 07-7 pos. 06-6 pos. 05-5 pos. 04-4 pos. 0 - pos. 02-2 pos. Shaft Length (AL) 000 -.6 mm xxx - Custom (e.g. 8.5 mm = 85) Customized Shaft Length Please state shaft length (AL) measured from mounting face. 69 Rotary Switches