The Siemens 3RT1956-1CC00 is a genuine SIRIUS surge suppressor with RC element, designed for compatible 3RT1 power contactors in S6, S10 and S12 sizes. It is used to suppress voltage transients generated during contactor coil switching, helping reduce electrical interference and improve the reliability of the surrounding control circuit. Siemens specifies this accessory for 3RT1.5, 3RT1.6 and 3RT1.7 contactors.
The 3RT1956-1CC00 supports 48–127 V AC control voltage at 50/60 Hz and 70–150 V DC control voltage. It features a screw-terminal connection and belongs to the Siemens SIRIUS 3RT19 surge suppressor accessory range. Siemens currently lists this product as an Active Product.
This Siemens contactor surge suppressor is suitable for industrial motor control panels, electrical control panels, automation systems, machine control cabinets, motor starters, factory automation equipment and OEM applications where effective contactor coil surge suppression is required.
Brand: Siemens
Product Family: SIRIUS
Part Number: 3RT1956-1CC00
Product Type: Surge Suppressor
Suppressor Type: RC Element
Product Series: 3RT19
Compatible Contactor: 3RT1.5, 3RT1.6, 3RT1.7
Contactor Sizes: S6, S10, S12
Control Supply: AC/DC
AC Voltage: 48–127 V AC
DC Voltage: 70–150 V DC
AC Frequency: 50/60 Hz
Connection: Screw Terminal
Net Weight: Approx. 0.029 kg
Approvals: CE / UL / CSA
Product Lifecycle: Active Product
The Siemens 3RT1956-1CC00 surge suppressor is suitable for:
Siemens SIRIUS power contactors
3RT1 contactor assemblies
S6 contactor applications
S10 contactor applications
S12 contactor applications
Industrial motor control panels
Electrical control panels
Motor starter systems
Industrial automation systems
Machine control cabinets
Factory automation equipment
OEM electrical panels
Contactor coil protection
Industrial switching systems
Electrical maintenance and retrofit applications
Helps suppress contactor coil switching surges.
Helps reduce electrical interference in control circuits.
Supports both AC and DC control supplies within the specified ranges.
Suitable for 48–127 V AC applications.
Suitable for 70–150 V DC applications.
Designed for S6, S10 and S12 contactor sizes.
Uses an RC element for surge suppression.
Screw-terminal connection provides a practical installation solution.
Genuine Siemens SIRIUS accessory.
Suitable for industrial automation and motor-control applications.
Helps improve control-circuit reliability during frequent contactor switching.
The Siemens SIRIUS 3RT1956-1CC00 is designed for applications where contactor coil surge protection is required. The RC element helps suppress transient voltage generated when the contactor coil is switched, which can help reduce disturbances in nearby electrical and control circuits.
Siemens specifies the accessory for 3RT1.5, 3RT1.6 and 3RT1.7 contactors covering S6, S10 and S12 sizes. Its specified control voltage range is 48–127 V AC and 70–150 V DC, with AC operation at 50/60 Hz.
The accessory is particularly useful in motor control, industrial automation, machine control, electrical panels, OEM equipment, factory automation and industrial switching systems where contactors are operated regularly.
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Q1. What is Siemens 3RT1956-1CC00?
The 3RT1956-1CC00 is a Siemens SIRIUS RC-element surge suppressor for compatible 3RT1 contactors.
Q2. Which contactors are compatible with this surge suppressor?
It is suitable for 3RT1.5, 3RT1.6 and 3RT1.7 contactors.
Q3. Which contactor sizes does it support?
It is designed for S6, S10 and S12 SIRIUS contactor sizes.
Q4. What AC voltage does it support?
The specified AC control voltage range is 48–127 V AC at 50/60 Hz.
Q5. What DC voltage does it support?
The specified DC control voltage range is 70–150 V DC.
Q6. What type of surge suppressor is 3RT1956-1CC00?
It is an RC-element surge suppressor.
Q7. What is the connection type?
The product uses a screw-terminal connection.
Q8. What is the purpose of an RC surge suppressor?
It helps suppress voltage transients produced when a contactor coil is switched, reducing electrical disturbances in the control circuit.
Q9. Is 3RT1956-1CC00 suitable for AC and DC coils?
Yes. Siemens specifies the control supply as AC/DC, with separate AC and DC voltage ranges.
Q10. Is 3RT1956-1CC00 a complete contactor?
No. It is a surge suppressor accessory designed for compatible Siemens SIRIUS contactors.
Q11. What is the product weight?
Siemens lists the net weight at approximately 0.029 kg (29 g).
Q12. What approvals are specified?
The Siemens datasheet specifies CE, UL and CSA suitability.
Q13. Which product family does it belong to?
It belongs to the Siemens SIRIUS family and 3RT19 surge suppressor series.
Q14. Can it be used in industrial motor-control panels?
Yes. It is designed as an accessory for compatible SIRIUS contactors used in industrial motor-control and automation applications.
Q15. Is it suitable for S6 contactors?
Yes. Siemens specifies compatibility with S6 contactor applications.
Q16. Is it suitable for S10 and S12 contactors?
Yes. The product is specified for S6, S10 and S12 contactor sizes.
Q17. Is Siemens 3RT1956-1CC00 an active product?
Yes. Siemens Industry Mall currently lists 3RT1956-1CC00 as PM300: Active Product.
Q18. Where is this surge suppressor commonly used?
It is commonly used in motor control panels, electrical control cabinets, industrial automation systems, machine control equipment, OEM panels and SIRIUS contactor assemblies.
Q19. Is it suitable for maintenance and replacement?
Yes. It can be used for maintenance, retrofit and replacement of the surge suppression accessory on compatible SIRIUS contactors.
Q20. Where can I buy Siemens 3RT1956-1CC00 in India?
The Siemens SIRIUS 3RT1956-1CC00 surge suppressor can be sourced from industrial electrical and automation suppliers such as SB Smart, subject to current stock and availability.
| Parameter | Specification |
|---|---|
| Product Series | Siemens SIRIUS |
| Model Number | 3RT1956-1CC00 |
| Product Type | Surge Suppressor |
| Compatibility | 3RT1 & 3RT2 Contactors |
| Contactor Configuration | 3 Pole |
| Suitable Frame Sizes | S6 to S12 |
| Function | Coil Surge Suppression |
| Installation Type | Contactor Accessory |
| Application | Control Circuit Protection |
| Usage | Industrial Automation & Motor Control |
| Brand | Siemens |
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