Better World
Siemens 40 A SIRIUS Motor Protection Circuit Breaker, 20 → 690 V
- RS Stock No.:
- 159-998
- Mfr. Part No.:
- 3RV2142-4FA10
- Brand:
- Siemens
Subtotal (1 unit)*
£396.30
(exc. VAT)
£475.56
(inc. VAT)
FREE delivery for orders over £50.00
Temporarily out of stock
- Shipping from 18 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £396.30 |
*price indicative
Better World
Our Better World range features products that make it easy for you to make a greener product choice you can trust. Click here to find out more.
- RS Stock No.:
- 159-998
- Mfr. Part No.:
- 3RV2142-4FA10
- Brand:
- Siemens
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Current Rating | 40 A | |
| Range | SIRIUS | |
| Motor Protection Component | Circuit Breaker | |
| Supply Voltage | 20 → 690 V | |
| Motor Protection System | 3RV2 | |
| Better World Claim | Extended product life, Low carbon manufacture | |
| Better World Product | Yes | |
Select all | ||
|---|---|---|
Brand Siemens | ||
Current Rating 40 A | ||
Range SIRIUS | ||
Motor Protection Component Circuit Breaker | ||
Supply Voltage 20 → 690 V | ||
Motor Protection System 3RV2 | ||
Better World Claim Extended product life, Low carbon manufacture | ||
Better World Product Yes | ||
- COO (Country of Origin):
- DE
The Siemens circuit breaker is designed for efficient motor protection, incorporating a thermal overload relay function that is suitable for various operational scenarios. Featuring a robust switching capacity of 100 kA, it ensures reliability and longevity, making it ideal for demanding applications. The device boasts a mechanical service life of approximately 25, 000 cycles, ensuring durability in high-use environments. Its compact design allows for easy installation on a DIN rail, offering flexibility in mounting options. With an operational current rated value of 40 A, this product is versatile enough to cater to a range of operational requirements while maintaining high safety standards.
Supports a wide installation altitude of up to 2, 000 metres
Facilitates easy maintenance thanks to its user-friendly design
Provides a significant breaking capacity for high short-circuit currents
Includes a finger-safe front protection class for added safety
Facilitates easy maintenance thanks to its user-friendly design
Provides a significant breaking capacity for high short-circuit currents
Includes a finger-safe front protection class for added safety
Related links
- Siemens 40 A SIRIUS Motor Protection Circuit Breaker, 20 → 690 V
- Siemens 50 A SIRIUS Motor Protection Circuit Breaker, 20 → 690 V
- Siemens 93 A SIRIUS Motor Protection Circuit Breaker, 20 → 690 V
- Siemens 75 A SIRIUS Motor Protection Circuit Breaker, 20 → 690 V
- Siemens 100 A SIRIUS Motor Protection Circuit Breaker, 20 → 690 V
- Siemens 84 A SIRIUS Motor Protection Circuit Breaker, 20 → 690 V
- Siemens 63 A SIRIUS Motor Protection Circuit Breaker, 20 → 690 V
- Siemens 40 A SIRIUS 3RV Motor Protection Circuit Breaker, 690 V