Electronic timer CT-VBS OFF-delayed without auxiliary voltage, for DC contactors Data sheet

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1 Characteristics Single-function OFF-delay timer for DC contactors, without auxiliary voltage Width.5 mm CDC 5 6 F3 Approvals A culus E CCC CT-VBS a Circuit diagram b Marker label Marks a CE b C-Tick Order data Type Rated control supply voltage Order code CT-VBS.7-7 V DC SVR 43 6 R6 CT-VBS.8-4 V DC SVR 43 6 R5 Order data (Accessories) Type Description Width in mm Order code ADP. Adapter for screw mounting.5 SVR 43 9 R COV. Sealable transparent cover.5 SVR 43 5 R MAR. Marker label.5 SVR R Application The CT-S range timers are designed for use in industrial applications. They operate over a universal range of supply voltages and a large time delay range, within compact dimensions. The easy-to-set front-face potentiometers, with direct reading scales, provide accurate time delay adjustment. Operating mode For the CT-VBS version with a -4 V AC supply voltage, the time delay is selected by connecting terminal 3 to 4. When jumpered, the time delay is from to s. If terminals 3-4 are not jumpered, the time delay is from to 4 ms. The exact time delays can be seen in the delay time diagrams.

2 Function diagrams B OFF-delay without auxiliary voltage (True delay on break) The DC contactor connected to the output is energized when control supply voltage is applied to terminals A-A. If control supply voltage is disconnected, the DC contactor remains energized for a short time delay. This delay time depends on the coil drop out voltage and on the wattage of the contactor coil. A-A +/- 3-4 ) +/- ) t t CDC 5 38 F5 t = OFF-delay (without jumper between terminal 3 and 4) ) t = OFF-delay (with jumper between terminal 3 and 4) ) ) only for version -4 V AC Delay time diagrams Contactor coil drop-out voltage [V] W 6 7 W 4 9 W 3 4 t [ms] CDC 5 7 F W 6 7 W 4 9 W t [s] Delay time guideline values Delay time guideline values -4 V AC version without jumper 3/4-4 V AC version with jumper 3/4 Contactor coil drop-out voltage [V] CDC 5 8 F5 Contactor coil drop-out voltage [V] W 7 W 3 W t [s] Delay time guideline values -7 V AC version CDC 5 9 F5

3 Connection diagrams B CT-VBS.8 A A 3 4 A - CDC 5 8 F5 + - A SVR 43 6 R5 A-A Supply: -4 V DC Contactor coil 3-4 Jumper for setting the time delay B CT-VBS.7 A + A A - CDC 5 7 F5 + - A SVR 43 6 R6 A-A Supply: -7 V DC Contactor coil 3

4 Technical Data Input circuits Supply voltage A-A -4 V DC A-A -7 V DC Power consumption -7 V DC max. ma -4 V DC max. 7 ma Supply voltage tolerance % Supply voltage frequency AC/DC Version DC or 5/6 Hz AC Version 5/6 Hz Duty time % Timing circuit Time range see delay time diagrams Recovery time < 5 ms Repeat accuracy (constant parameters) ± 5 % Timing error within the supply voltage tolerance range ± % Timing error within operating temperature range. % / C Output circuits Contact material AgCdO Related voltage acc. to VDE, IEC see delay time diagrams Maximum switching voltage 5 V AC, 5 V DC Rated switching current acc. to IEC AC- (resistive) 3 V 4 A AC-5 (inductive) 3 V 3 A DC- (resistive) 4 V 4 A DC-5 (inductive) 4 V A Maximum lifetime mechanical 3 x 6 switching cycles electrical (AC-, 3 V, 4 A). x 6 switching cycles Short circuit proof, max. fuse rating n/c A fast, operating class gl n/o A fast, operating class gl General data Enclosure width.5 mm length 78. mm depth. mm Wire size fine-strand with wire end ferrule x mm (8-4 AWG) fine-strand without wire end ferrule rigid x.5-4 mm (- AWG) Weight approx. 5 g (5.3 oz) Mounting position any Degree of protection enclosure / terminals IP5 / IP Temperature range operating C storage C Mounting DIN rail (IEC/EN 675) Standards Product standard IEC 68-, EN 68- EMC Directive 4/8/EC Electromagnetic compatibility IEC 6-6-, EN electrostatic discharge IEC/EN 6-4- level 3 6 kv / 8 kv radiated, radio-frequency, electromagnetic field IEC/EN level 3 V/m electrical fast transient / burst IEC/EN level 3 kv / 5 khz Surge IEC/EN level 4 kv L-L conducted disturbances, induced by radio-frequency fields IEC/EN level 3 V Low Voltage Directive 6/95/EG Operational reliability acc. to IEC g Mechanical resistance acc. to IEC g Isolation data Rated insulation voltage between supply circuit, acc. to VDE, IEC supply up to 4 V: 3 V control circuit and output circuit supply up to 44 V: 5 V Rated impulse withstand voltage between all isolated circuits acc. to VDE, IEC kv /.-5 µs Test voltage between all isolated circuits.5 kv, 5 Hz, min. Pollution category acc. to VDE, IEC 664, IEC 55-5 III/C Overvoltage category acc. to VDE, IEC 664, IEC 55-5 III/C Environmental testing acc. to IEC h cycle time, 55 C, 93 % rel., 96 h 4

5 Load limit curves AC load (resistive) AC voltage [V] resistive load CDC 5 49 F6 AC current [A] DC load (resistive) DC voltage [V] resistive load CDC 5 5 F6 DC current [A] Derating factor F for inductive AC load Derating factor F CDC 5 4 F cos ϕ Contact lifetime /switching cycles N Switching cycles 5 V resistive load CDC 5 48 F6 Switching current [A] V 5 Hz AC 36 cycles/h 5

6 Dimensional drawings Dimensions in mm 9,5 4.3, CDC 5 88 F Dimensional drawings (Accessories) ADP. - Adapter for screw mounting on panel.7, ,5.38 CDC 5 85 F5 68,5 front-to-back size 7 COV. - Sealable transparent cover 3A CDC 5 86 F5 MAR. - Marker label Further documentation Document titel Document type Document number Electronic Products and Relays Technical catalogue CDC 4 Cx You can find the documentation on the internet at R Control Products R Electronic Relays and Controls 6

7 Contact us STOTZ-KONTAKT GmbH P. O. Box Heidelberg, Germany Phone: +49 () Fax: +49 () You can find the address of your local sales organisation on the home page -> Low Voltage Products and Systems Document number CDC D4 (6/) Note: We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. AG does not accept any responsibility whatsoever for potential errors or possible lack of information in this document. We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduction, disclosure to third parties or utilization of its contents in whole or in parts is forbidden without prior written consent of AG. Copyright All rights reserved