Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 4.5 → 6.3 A F.L.C, 6.3 A Contact Rating, 4 kW, 3P, SIRIUS
- RS Stock No.:
- 706-1636
- Distrelec Article No.:
- 304-23-390
- Mfr. Part No.:
- 3RU2126-1GB0
- Brand:
- Siemens
Subtotal (1 unit)*
£45.89
(exc. VAT)
£55.07
(inc. VAT)
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In Stock
- Plus 5 unit(s) shipping from 06 October 2025
- Plus 2 unit(s) shipping from 06 October 2025
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Units | Per unit |
|---|---|
| 1 + | £45.89 |
*price indicative
- RS Stock No.:
- 706-1636
- Distrelec Article No.:
- 304-23-390
- Mfr. Part No.:
- 3RU2126-1GB0
- 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 | |
| FLC Motor Rating | 4.5 → 6.3 A | |
| Contact Current Rating | 6.3 A | |
| Range | SIRIUS | |
| Pole Configuration | 3P | |
| Series | SIRIUS 3RU2 | |
| Mounting Style | Direct Contactor | |
| Power Rating | 4 kW | |
| Normal State Configuration | 1NO + 1NC | |
| Reset Method | Automatic, Manual | |
| Terminal Type | Screw | |
| Width | 45mm | |
| Number Of Auxiliary Contacts | 2 | |
| Depth | 73mm | |
| Length | 87mm | |
| Maximum Operating Temperature | +70°C | |
| Minimum Operating Temperature | -40°C | |
| Operating Temperature Range | -40 → +70 °C | |
| Contact Voltage Rating | 690 V ac | |
Select all | ||
|---|---|---|
Brand Siemens | ||
FLC Motor Rating 4.5 → 6.3 A | ||
Contact Current Rating 6.3 A | ||
Range SIRIUS | ||
Pole Configuration 3P | ||
Series SIRIUS 3RU2 | ||
Mounting Style Direct Contactor | ||
Power Rating 4 kW | ||
Normal State Configuration 1NO + 1NC | ||
Reset Method Automatic, Manual | ||
Terminal Type Screw | ||
Width 45mm | ||
Number Of Auxiliary Contacts 2 | ||
Depth 73mm | ||
Length 87mm | ||
Maximum Operating Temperature +70°C | ||
Minimum Operating Temperature -40°C | ||
Operating Temperature Range -40 → +70 °C | ||
Contact Voltage Rating 690 V ac | ||
- Switching Devices for Load Feeders
- Datasheet_3RU2126-1GB0
- Sirius Innovation Accessory Guide
- Sirius Innovation Catalogue
- Sirius Innovations Switching Devices
- Solutions for frequent switching or soft starting
- Basic Information
- Siemens Sirius Migration
- Environmental Product Declaration
- Instruction Sheet - 3RU2116 Series
- COO (Country of Origin):
- DE
Siemens 3RU Series Overload Relay, 6.3 A Contact Current Rating, 4kW Power Rating - 3RU2126-1GB0
This overload relay is specifically designed for motor protection, ensuring safe operation of electrical equipment. It is vital in safeguarding motors against overload conditions, thereby extending the machinery’s lifespan. The robust features and innovative design make this relay an essential component in industrial automation and electrical applications.
Features & Benefits
• Thermal overload protection for currents between 4.5A and 6.3A
• Offers integrated automatic and manual reset options for enhanced usability
• Configured for 3P installations, providing versatility
• Functional in a temperature range of -40°C to +70°C
• Features screw-type terminals for secure connections
• Supports operational voltage ratings up to 690V AC
• Offers integrated automatic and manual reset options for enhanced usability
• Configured for 3P installations, providing versatility
• Functional in a temperature range of -40°C to +70°C
• Features screw-type terminals for secure connections
• Supports operational voltage ratings up to 690V AC
Applications
• Utilised for motor protection in various industrial settings
• Suitable for integration into electrical control circuits
• Effective for protecting pumps, conveyors, and compressors
• Commonly employed in automation systems requiring overload trip functions
• Suitable for integration into electrical control circuits
• Effective for protecting pumps, conveyors, and compressors
• Commonly employed in automation systems requiring overload trip functions
What is the operating temperature range for optimal performance?
The product operates effectively within -40°C to +70°C.
How is the overload protection reset?
It features both automatic and manual reset methods.
Can it be installed in any orientation?
Yes, the relay allows for installation in any mounting position.
What types of motors can it protect?
It is suitable for standard three-phase AC motors.
What current ratings does it support?
The overload relay supports current ratings between 4.5A and 6.3A.