Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 20 → 25 A F.L.C, 25 A Contact Rating, 11 kW, 3P, SIRIUS
- RS Stock No.:
- 706-1673
- Mfr. Part No.:
- 3RU2126-4DB0
- Brand:
- Siemens
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£45.89
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£55.07
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- Plus 12 unit(s) shipping from 03 November 2025
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Units | Per unit |
|---|---|
| 1 + | £45.89 |
*price indicative
- RS Stock No.:
- 706-1673
- Mfr. Part No.:
- 3RU2126-4DB0
- 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 | 20 → 25 A | |
| Contact Current Rating | 25 A | |
| Range | SIRIUS | |
| Pole Configuration | 3P | |
| Series | SIRIUS 3RU2 | |
| Mounting Style | Direct Contactor | |
| Power Rating | 11 kW | |
| Normal State Configuration | 1NO + 1NC | |
| Reset Method | Automatic, Manual | |
| Terminal Type | Screw | |
| Number Of Auxiliary Contacts | 2 | |
| Width | 45mm | |
| Length | 85mm | |
| Depth | 85mm | |
| Minimum Operating Temperature | -40°C | |
| Maximum Operating Temperature | +70°C | |
| Operating Temperature Range | -40 → +70 °C | |
| Contact Voltage Rating | 690 V ac | |
Select all | ||
|---|---|---|
Brand Siemens | ||
FLC Motor Rating 20 → 25 A | ||
Contact Current Rating 25 A | ||
Range SIRIUS | ||
Pole Configuration 3P | ||
Series SIRIUS 3RU2 | ||
Mounting Style Direct Contactor | ||
Power Rating 11 kW | ||
Normal State Configuration 1NO + 1NC | ||
Reset Method Automatic, Manual | ||
Terminal Type Screw | ||
Number Of Auxiliary Contacts 2 | ||
Width 45mm | ||
Length 85mm | ||
Depth 85mm | ||
Minimum Operating Temperature -40°C | ||
Maximum Operating Temperature +70°C | ||
Operating Temperature Range -40 → +70 °C | ||
Contact Voltage Rating 690 V ac | ||
- COO (Country of Origin):
- DE
Siemens Thermal Overload Relay, 1NO + 1NC Normal State Configuration, Screw Terminal - 3RU2126-4DB0
This thermal overload relay is designed for effective motor protection with a contact current rating of 25A. It operates within a temperature range of -40 to +70°C and can be mounted directly onto the contactor. With dimensions of 85mm x 85mm x 85mm, it fits well in compact spaces, ensuring safety and performance.
Features & Benefits
• Manual and automatic reset options provide flexibility
• Thermal overload releases ensure reliable motor protection
• 690V AC capability for high voltage applications
• Compact design allows for easy integration in control systems
• Efficient power loss management for energy savings
• Integrated contact configuration supports comprehensive monitoring
• Thermal overload releases ensure reliable motor protection
• 690V AC capability for high voltage applications
• Compact design allows for easy integration in control systems
• Efficient power loss management for energy savings
• Integrated contact configuration supports comprehensive monitoring
Applications
• Motor protection in manufacturing equipment
• Suitable for assembly lines requiring motor control
• Ideal for robotic systems needing overload protection
• Employed in HVAC systems for motor safety
• Suitable for assembly lines requiring motor control
• Ideal for robotic systems needing overload protection
• Employed in HVAC systems for motor safety
Can it handle a maximum operating temperature of +70°C?
Yes, it operates effectively up to +70°C.
Will it provide protection in high humidity conditions?
Yes, it functions within relative humidity levels of 10 to 95%.
Is it compatible with both direct mounting and screw terminals?
Yes, the relay supports direct mounting and has screw terminals.
Can the relay be used in a three-phase AC motor application?
Yes, it is suitable for three-phase AC motor systems with a rating of 25A.
Does it require specific installation heights?
No, it can be installed at a maximum altitude of 2000m.