Siemens SIRIUS 3RU2 Thermal Overload Relay 1NO + 1NC, 5.5 → 8 A F.L.C, 8 A Contact Rating, 3 kW, 3P, SIRIUS
- RS Stock No.:
- 706-1576
- Distrelec Article No.:
- 136-23-074
- Mfr. Part No.:
- 3RU2116-1HB0
- Brand:
- Siemens
Subtotal (1 unit)*
£42.72
(exc. VAT)
£51.26
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 19 unit(s) ready to ship
- Plus 5 unit(s) ready to ship from another location
- Plus 17 unit(s) shipping from 28 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £42.72 |
*price indicative
- RS Stock No.:
- 706-1576
- Distrelec Article No.:
- 136-23-074
- Mfr. Part No.:
- 3RU2116-1HB0
- 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 | 5.5 → 8 A | |
| Contact Current Rating | 8 A | |
| Range | SIRIUS | |
| Pole Configuration | 3P | |
| Series | SIRIUS 3RU2 | |
| Mounting Style | Direct Contactor | |
| Power Rating | 3 kW | |
| Normal State Configuration | 1NO + 1NC | |
| Reset Method | Automatic, Manual | |
| Terminal Type | Screw | |
| Width | 45mm | |
| Number Of Auxiliary Contacts | 2 | |
| Depth | 70mm | |
| Length | 76mm | |
| 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 5.5 → 8 A | ||
Contact Current Rating 8 A | ||
Range SIRIUS | ||
Pole Configuration 3P | ||
Series SIRIUS 3RU2 | ||
Mounting Style Direct Contactor | ||
Power Rating 3 kW | ||
Normal State Configuration 1NO + 1NC | ||
Reset Method Automatic, Manual | ||
Terminal Type Screw | ||
Width 45mm | ||
Number Of Auxiliary Contacts 2 | ||
Depth 70mm | ||
Length 76mm | ||
Maximum Operating Temperature +70°C | ||
Minimum Operating Temperature -40°C | ||
Operating Temperature Range -40 → +70 °C | ||
Contact Voltage Rating 690 V ac | ||
- COO (Country of Origin):
- DE
Siemens Thermal Overload Relay, 3kW Power Rating, 1NO + 1NC Normal State Configuration - 3RU2116-1HB0
This thermal overload relay is designed to protect electric motors operating within a range of 5.5 to 8 A. It is suitable for direct mounting on contactors and integrates effortlessly into automation systems. With compact dimensions of 76mm x 45mm x 70mm, the relay can function in an operating temperature range from -40 to +70°C, making it suitable for various environments.
Features & Benefits
• Protects motors from overload and enhances operational safety
• Offers manual and automatic reset options for convenience
• High current rating accommodates up to 8A
• Integrated auxiliary switch acts as a fault indicator
• Compatible with 3-phase connections for versatility
• Features screw terminals for secure electrical connections
• Offers manual and automatic reset options for convenience
• High current rating accommodates up to 8A
• Integrated auxiliary switch acts as a fault indicator
• Compatible with 3-phase connections for versatility
• Features screw terminals for secure electrical connections
Applications
• Ideal for automation within manufacturing processes
• Used for protection in HVAC equipment
• Applicable in power distribution systems for motors
• Used for protection in HVAC equipment
• Applicable in power distribution systems for motors
Can it handle multiple motor ratings?
Yes, it operates effectively within a range of 5.5 to 8 A.
Will it continue to function in extreme temperatures?
Yes, it is designed to work from -40°C to +70°C.
Is it easy to reset after tripping?
Yes, it has both manual and automatic reset methods.
Does it provide overload protection for 3-phase systems?
Yes, it is specifically designed for 3-phase overload protection.
Can it be integrated into various mounting positions?
Yes, it is adaptable to any mounting position.