Better World
Siemens 2.8 → 4 A SIRIUS 3RV Motor Protection Circuit Breaker
- RS Stock No.:
- 203-3879
- Mfr. Part No.:
- 3RV2021-1EA15
- Brand:
- Siemens
Subtotal (1 unit)*
£81.67
(exc. VAT)
£98.00
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- Plus 5 unit(s) shipping from 22 October 2025
- Plus 3 unit(s) shipping from 22 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £81.67 |
*price indicative
Better World
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- RS Stock No.:
- 203-3879
- Mfr. Part No.:
- 3RV2021-1EA15
- 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 | |
| Series | 3RV2 | |
| Sensing Type | Current | |
| Overall Length | 45mm | |
| Overall Width | 97mm | |
| Overall Depth | 97mm | |
| Minimum Operating Temperature | -20°C | |
| Voltage Rating | 20 → 690 V | |
| Maximum Operating Temperature | +60°C | |
| Number of Poles | 3 | |
| Terminal Type | Screw | |
| Better World Claim | Extended product life, Low carbon manufacture | |
| Better World Product | Yes | |
| Breaking Capacity | 100 kA | |
| Size | S0 | |
Select all | ||
|---|---|---|
Brand Siemens | ||
Current Rating 2.8 → 4 A | ||
Range SIRIUS 3RV | ||
Motor Protection Component Circuit Breaker | ||
Series 3RV2 | ||
Sensing Type Current | ||
Overall Length 45mm | ||
Overall Width 97mm | ||
Overall Depth 97mm | ||
Minimum Operating Temperature -20°C | ||
Voltage Rating 20 → 690 V | ||
Maximum Operating Temperature +60°C | ||
Number of Poles 3 | ||
Terminal Type Screw | ||
Better World Claim Extended product life, Low carbon manufacture | ||
Better World Product Yes | ||
Breaking Capacity 100 kA | ||
Size S0 | ||
- COO (Country of Origin):
- DE
Siemens 3RV2 Series Motor Protection Circuit Breaker, 2.8 to 4A Current Rating - 3RV2021-1EA15
This motor protection circuit breaker is essential for safeguarding motors in various industrial applications. It helps prevent overloads and short circuits, thereby enhancing operational safety and reliability. The intelligent design also contributes to energy efficiency and extends the product's lifespan.
Features & Benefits
• Current rating from 2.8 to 4A for diverse applications
• CLASS 10 A-release for effective motor protection
• Thermal overload release design prevents damage due to excessive current
• Auxiliary switch design allows for additional sensor connectivity
• High breaking capacity up to 100kA ensures system reliability
• Compact dimensions for easy installation in tight spaces
• CLASS 10 A-release for effective motor protection
• Thermal overload release design prevents damage due to excessive current
• Auxiliary switch design allows for additional sensor connectivity
• High breaking capacity up to 100kA ensures system reliability
• Compact dimensions for easy installation in tight spaces
Applications
• Works in conjunction with SIRIUS contactors for motor control
• Suitable for environments requiring stringent circuit protection
• Compatible with various motor types for flexible usage
• Ideal for focused on energy efficiency
• Suitable for environments requiring stringent circuit protection
• Compatible with various motor types for flexible usage
• Ideal for focused on energy efficiency
What is the installation process for this device?
The device can be mounted using screw and snap-on methods onto a standard 35mm DIN rail.
How can I determine if it will fit my existing setup?
Review the sizing specifications to ensure compatibility with your current circuit design and components.
What maintenance does it require?
Regular functionality checks and ensuring that terminals are secure are typically sufficient for maintenance.
Can it handle fluctuating current loads?
Yes, it is designed to manage a range of loads efficiently within the specified current rating.
Is it suitable for use in different ambient temperatures?
Yes, it operates effectively in ambient temperatures ranging from -20°C to +60°C.
