Better World
Siemens 2.8 → 4 A SIRIUS 3RV Motor Protection Circuit Breaker, 690 V
- RS Stock No.:
- 124-3102
- Mfr. Part No.:
- 3RV2021-1EA10
- Brand:
- Siemens
Subtotal (1 unit)*
£66.54
(exc. VAT)
£79.85
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 6 unit(s) ready to ship
- Plus 2 unit(s) ready to ship from another location
- Plus 9 unit(s) shipping from 31 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £66.54 |
*price indicative
Better World
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- RS Stock No.:
- 124-3102
- Mfr. Part No.:
- 3RV2021-1EA10
- 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 | 2.8 → 4 A | |
| Range | SIRIUS 3RV | |
| Motor Protection Component | Circuit Breaker | |
| Supply Voltage | 690 V | |
| Series | 3RV2 | |
| Overall Length | 45mm | |
| Overall Width | 96.9mm | |
| Overall Depth | 97mm | |
| Minimum Operating Temperature | -20°C | |
| Maximum Operating Temperature | +60°C | |
| Voltage Rating | 690 V | |
| Terminal Type | Screw | |
| Better World Product | Yes | |
| Better World Claim | Extended product life, Low carbon manufacture | |
| Number of Poles | 3 | |
| Breaking Capacity | 100 kA | |
| Size | S0 | |
Select all | ||
|---|---|---|
Brand Siemens | ||
Current Rating 2.8 → 4 A | ||
Range SIRIUS 3RV | ||
Motor Protection Component Circuit Breaker | ||
Supply Voltage 690 V | ||
Series 3RV2 | ||
Overall Length 45mm | ||
Overall Width 96.9mm | ||
Overall Depth 97mm | ||
Minimum Operating Temperature -20°C | ||
Maximum Operating Temperature +60°C | ||
Voltage Rating 690 V | ||
Terminal Type Screw | ||
Better World Product Yes | ||
Better World Claim Extended product life, Low carbon manufacture | ||
Number of Poles 3 | ||
Breaking Capacity 100 kA | ||
Size S0 | ||
- COO (Country of Origin):
- DE
Siemens Motor Protection Circuit Breaker, 690V Rated Voltage, Screw Terminals - SIRIUS Series - 3RV2021-1EA10
Cut power to your equipment in a tick with this motor protection circuit breaker from Siemens. It has a rotary switch on the front, so you can manually turn the power on and off. This is lockable, giving you peace of mind when you're carrying out servicing and repairs to downstream devices. A magnetic short-circuit trip and a thermal overload release automatically break the circuit when electrical faults occur to prevent damage to motors. The unit works with both single-phase AC and three-phase DC motors for convenience. Use it alongside your size S0 and S00 contactors to reliably boost operational safety in heavy plant environments.
Features & Benefits
• Dimensions of 97 (L) x 45 (W) x 96mm (D) mean it's a compact option
• Mechanical and electrical lifespan of 100,000 switching cycles indicate durability
• Built to operate reliably in temperatures between -20°C and +60°C
• Mechanical and electrical lifespan of 100,000 switching cycles indicate durability
• Built to operate reliably in temperatures between -20°C and +60°C
Is it straightforward to install this motor protection circuit breaker?
Yes. The breaker snaps onto a standard DIN rail for easy mounting and uses screw terminals to give you a dependable wire connection.
Related links
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