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Siemens 20A SIRIUS 3RV2 Motor Protection Circuit Breaker, 20V, 690 V, 60 °C, -50 °C
- RS Stock No.:
- 160-024
- Mfr. Part No.:
- 3RV2021-4BA15-0BA0
- Brand:
- Siemens
Subtotal (1 unit)*
£127.56
(exc. VAT)
£153.07
(inc. VAT)
FREE delivery for orders over £60.00
In Stock
- 3 unit(s) ready to ship from another location
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Units | Per unit |
|---|---|
| 1 + | £127.56 |
*price indicative
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- RS Stock No.:
- 160-024
- Mfr. Part No.:
- 3RV2021-4BA15-0BA0
- 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 | 20A | |
| Product Type | Motor Protection Circuit Breaker | |
| Motor Protection Component | Circuit Breaker | |
| Supply Voltage | 20, 690V | |
| Motor Protection System | 3RV2 | |
| Series | SIRIUS 3RV2 | |
| Sensing Type | Magnetic | |
| Overall Length | 97mm | |
| Overall Width | 45mm | |
| IP Rating | IP20 | |
| Overall Depth | 97mm | |
| Minimum Operating Temperature | -50°C | |
| Maximum Operating Temperature | 60°C | |
| Standards/Approvals | IEC 60529, VDE, UL, UKCA, RoHS, RINA, PRS, LRS, EPD, EAC, DNV, CE, CCC, ABS | |
| Better World Claim | Extended Product Life, Low Carbon Manufacture | |
| Number of Poles | 3 | |
| Better World Product | Yes | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Current Rating 20A | ||
Product Type Motor Protection Circuit Breaker | ||
Motor Protection Component Circuit Breaker | ||
Supply Voltage 20, 690V | ||
Motor Protection System 3RV2 | ||
Series SIRIUS 3RV2 | ||
Sensing Type Magnetic | ||
Overall Length 97mm | ||
Overall Width 45mm | ||
IP Rating IP20 | ||
Overall Depth 97mm | ||
Minimum Operating Temperature -50°C | ||
Maximum Operating Temperature 60°C | ||
Standards/Approvals IEC 60529, VDE, UL, UKCA, RoHS, RINA, PRS, LRS, EPD, EAC, DNV, CE, CCC, ABS | ||
Better World Claim Extended Product Life, Low Carbon Manufacture | ||
Number of Poles 3 | ||
Better World Product Yes | ||
Siemens SIRIUS 3RV2 Series Motor Protection Circuit Breaker, 20A Current Rating, IP20 - 3RV2021-4BA15-0BA0
This motor protection circuit‑breaker provides adjustable overload and magnetic short‑circuit protection for three‑phase motors in industrial control systems. It is designed for use where thermal overload and instantaneous magnetic trips are required to protect motors operating across a wide voltage range and under variable ambient conditions.
Features & Benefits
• Adjustable overload 13–20 A for correct motor thermal protection
• Instantaneous trip at 260A to limit short‑circuit stress
• Rated operational current 20A for AC‑3 motor switching duties
• Breaking capacity up to 100kA at 240V for high fault tolerance
• Operates on supply 20–690 V supporting broad installation needs
• Auxiliary transverse switch 1NO+1NC for signalling and interlocks
• Instantaneous trip at 260A to limit short‑circuit stress
• Rated operational current 20A for AC‑3 motor switching duties
• Breaking capacity up to 100kA at 240V for high fault tolerance
• Operates on supply 20–690 V supporting broad installation needs
• Auxiliary transverse switch 1NO+1NC for signalling and interlocks
**Applications**
• Suitable for protecting three‑phase motors in conveyor drives
• Ideal for motor control centres in manufacturing plants
• Used with contactor combinations in pump stations
• Can be used for retrofit motor protection in panel upgrades
• Ideal for motor control centres in manufacturing plants
• Used with contactor combinations in pump stations
• Can be used for retrofit motor protection in panel upgrades
What mounting options are available for installation?
It mounts on a 35 mm DIN rail and can be fixed by screw and snap‑on methods for Compact panel layouts.
How does the device cope with extreme ambient temperatures?
It is specified to function from −50°C to +60°C during operation and endures storage and transport down to −50°C and up to +80°C.
What conductor sizes can be connected to the main terminals?
Main contacts accept solid or stranded conductors in ranges up to 2x10 mm² and, with ferrules, single conductors up to 10 mm² depending on configuration.
Which short‑circuit protection devices are recommended for auxiliary circuits?
For auxiliary protection use gG fuses 10A or a miniature circuit‑breaker type C 6A when prospective short‑circuit current is below 400A.
What mechanical and electrical endurance should be expected?
Typical mechanical and electrical life is around 500 operating cycles for both main and auxiliary contacts.
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