The Siemens 3RT1956-4EA1 is a genuine SIRIUS terminal cover designed for cable lug connections, busbar connections, and box terminal applications in compatible Siemens industrial switching equipment. It provides touch protection and helps maintain the required voltage clearances around energized power connections. Siemens specifies this accessory for 3RT1 contactors, 3RB2 overload relays, 3RW407 and 3RW4 soft starters, and 3RW505 soft starters.
The terminal cover has a 100 mm length and is suitable for S6 and S12 size applications as well as mounted box terminals. Siemens specifies that 2 units are required per contactor for the intended installation. The product belongs to the SIRIUS 3RT19 accessory series and is currently listed as an Active Product in Siemens Industry Mall.
The 3RT1956-4EA1 terminal cover is suitable for industrial motor control panels, electrical control panels, motor starters, automation systems, factory machinery, power switching equipment, and electrical maintenance applications where protection around high-current terminal connections is required.
Brand: Siemens
Product Family: SIRIUS
Model: 3RT1956-4EA1
Product Type: Terminal Cover
Product Series: 3RT19
Application: Cable Lug & Busbar Connections
Length: 100 mm
Suitable Contactor Sizes: S6 and S12
Protection: Touch Protection
Function: Maintains Required Voltage Clearances
Suitable For: Mounted Box Terminals
Compatible Equipment: 3RT1, 3RB2, 3RW407, 3RW4, 3RW505
Required Quantity: 2 Units per Contactor
Net Weight: Approx. 64–70 g
Product Status: Active Product
Country of Origin: Germany
The Siemens 3RT1956-4EA1 terminal cover can be used in:
Industrial motor control panels
Electrical control panels
Siemens SIRIUS contactor assemblies
Motor starter panels
Industrial automation systems
Factory automation equipment
Electrical distribution panels
Machine control cabinets
OEM control panels
Motor protection systems
Soft starter installations
High-current power connection assemblies
Electrical maintenance and retrofit applications
Provides effective touch protection for power connections.
Helps maintain required electrical voltage clearances.
Suitable for cable lug and busbar connections.
Designed for compatible Siemens SIRIUS equipment.
Suitable for S6 and S12 size applications.
Can be used with mounted box terminals.
Compact 100 mm terminal cover design.
Useful for industrial electrical panel safety.
Genuine Siemens SIRIUS accessory.
Suitable for maintenance, replacement, and OEM applications.
The Siemens SIRIUS 3RT1956-4EA1 is designed to provide additional protection around power connection points on compatible SIRIUS equipment. Its primary functions are maintaining voltage clearances and providing touch protection for cable lug, busbar, and box terminal connections.
With a 100 mm length, the terminal cover is suitable for S6 and S12-size applications and can also be used with mounted box terminals. Siemens specifies the accessory for equipment including 3RT1 contactors, 3RB2 overload relays, and selected 3RW soft starters.
For industrial applications, using the appropriate terminal protection accessory helps improve the overall safety and arrangement of an electrical control panel. The 3RT1956-4EA1 is therefore suitable for motor control, industrial automation, machine control, factory electrical systems, OEM panels, and maintenance applications.
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Q1. What is Siemens 3RT1956-4EA1?
The 3RT1956-4EA1 is a Siemens SIRIUS terminal cover for cable lug, busbar, and box terminal connections.
Q2. What is the length of the terminal cover?
The terminal cover has a 100 mm length.
Q3. What is the purpose of 3RT1956-4EA1?
It is used to provide touch protection and maintain the required voltage clearances around power connections.
Q4. Which contactor sizes are supported?
Siemens specifies the accessory for S6 and S12 applications.
Q5. Which Siemens products can use this terminal cover?
It is specified for compatible 3RT1, 3RB2, 3RW407, 3RW4 and 3RW505 equipment.
Q6. How many covers are required per contactor?
Siemens specifies 2 units per contactor for the intended installation.
Q7. Is 3RT1956-4EA1 a complete contactor?
No. It is a terminal cover accessory, not a complete power contactor.
Q8. Can it be used for busbar connections?
Yes. Siemens specifically describes it as a terminal cover for busbar connections and box terminals.
Q9. Can it be used with cable lugs?
Yes. Siemens documentation identifies the product as a cover for cable lug and busbar connections.
Q10. What type of protection does it provide?
It provides touch protection and helps comply with the required voltage clearances around the protected connections.
Q11. What is the product family?
The product belongs to the Siemens SIRIUS product family and the 3RT19 accessory series.
Q12. What is the net weight?
Siemens documentation lists the net weight at approximately 64 g, while Industry Mall packaging data lists approximately 0.070 kg.
Q13. Is 3RT1956-4EA1 an active Siemens product?
Yes. Siemens Industry Mall currently identifies 3RT1956-4EA1 as an Active Product.
Q14. Where is this terminal cover commonly used?
It is used in motor control panels, industrial automation panels, electrical control cabinets, SIRIUS contactor assemblies, soft starter systems, and machine control equipment.
Q15. Is this accessory suitable for maintenance work?
Yes. It can be used for replacement, retrofit, servicing, and maintenance of compatible Siemens SIRIUS equipment.
Q16. Does it replace the complete contactor?
No. It only provides terminal connection protection and must be used with the compatible contactor or switching device.
Q17. What is the main advantage of this Siemens accessory?
Its main advantage is providing touch protection and maintaining voltage clearances around cable lug, busbar, and box terminal connections.
Q18. Where can I buy Siemens 3RT1956-4EA1 in India?
You can source the Siemens 3RT1956-4EA1 SIRIUS terminal cover from industrial electrical and automation suppliers such as SB Smart, subject to current stock and availability.
| Parameter | Specification |
|---|---|
| Product Series | Siemens SIRIUS |
| Model Number | 3RT1956-4EA1 |
| Product Type | Terminal Cover |
| Function | Terminal Protection |
| Application | Cable Lug & Busbar Connections |
| Compatibility | Selected 3RT1, 3RT2, 3RB2 & 3RW Series Devices |
| Installation Type | Accessory / Protective Cover |
| Usage | Motor Control & Power Distribution Systems |
| Safety Function | Protection Against Accidental Contact |
| Brand | Siemens |
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