Siemens SIRIUS 3RU2 Thermal Overload Relay, 16 A F.L.C, 16 A Contact Rating, 7.5 kW, 11 kW, 690 Vac, 3, SIRIUS
- RS Stock No.:
- 213-1132
- Mfr. Part No.:
- 3RU2116-4AB1
- Brand:
- Siemens
Subtotal (1 unit)*
£54.52
(exc. VAT)
£65.42
(inc. VAT)
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In Stock
- Plus 1 unit(s) shipping from 24 November 2025
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Units | Per unit |
|---|---|
| 1 + | £54.52 |
*price indicative
- RS Stock No.:
- 213-1132
- Mfr. Part No.:
- 3RU2116-4AB1
- 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 | 16 A | |
| Contact Current Rating | 16 A | |
| Range | SIRIUS | |
| Pole Configuration | 3 | |
| Series | SIRIUS 3RU2 | |
| Power Rating | 7.5 kW, 11 kW | |
| Reset Method | Manua/Automatic | |
| Terminal Type | Screw | |
| Number Of Auxiliary Contacts | Screw | |
| Width | 45mm | |
| Depth | 80mm | |
| Length | 89mm | |
| Maximum Operating Temperature | +70°C | |
| Minimum Operating Temperature | -40°C | |
| Operating Temperature Range | -40 → +70 °C | |
| Control Voltage | 690 Vac | |
| Contact Voltage Rating | 690 V | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
FLC Motor Rating 16 A | ||
Contact Current Rating 16 A | ||
Range SIRIUS | ||
Pole Configuration 3 | ||
Series SIRIUS 3RU2 | ||
Power Rating 7.5 kW, 11 kW | ||
Reset Method Manua/Automatic | ||
Terminal Type Screw | ||
Number Of Auxiliary Contacts Screw | ||
Width 45mm | ||
Depth 80mm | ||
Length 89mm | ||
Maximum Operating Temperature +70°C | ||
Minimum Operating Temperature -40°C | ||
Operating Temperature Range -40 → +70 °C | ||
Control Voltage 690 Vac | ||
Contact Voltage Rating 690 V | ||
- COO (Country of Origin):
- DE
Siemens SIRIUS 3RU2 Series Thermal Overload Relay, 16A FLC Motor Rating, 690V Contact Voltage Rating - 3RU2116-4AB1
This thermal overload relay is an essential component for motor protection, designed to operate efficiently within the SIRIUS range. With dimensions of 89mm in height, 45mm in width, and 80mm in depth, this unit caters to motors with a current rating of 11A to 16A. It can function in a temperature range of -40 to +70°C, allowing flexibility in various industrial environments.
Features & Benefits
• Integrates manual and automatic reset functionality for convenience
• Compact design allows for easy installation in tight spaces
• Features a screw terminal connection for secure wiring
• Operates at a maximum voltage of 690V for robust performance
• Provides reliable thermal protection with a trip class of 10
• Supports 3 poles for managing multiple circuits effectively
• Compact design allows for easy installation in tight spaces
• Features a screw terminal connection for secure wiring
• Operates at a maximum voltage of 690V for robust performance
• Provides reliable thermal protection with a trip class of 10
• Supports 3 poles for managing multiple circuits effectively
Applications
• Utilised in automation systems for reliable motor protection
• Suitable for in electrical and mechanical industries
• Employed in standalone installations requiring thermal control
• Ideal for protecting AC motors in industrial machinery
• Used with contactors for enhanced circuit safety
• Suitable for in electrical and mechanical industries
• Employed in standalone installations requiring thermal control
• Ideal for protecting AC motors in industrial machinery
• Used with contactors for enhanced circuit safety
What is the maximum operating temperature for this unit?
The maximum operating temperature of this relay is +70°C, ensuring reliable performance even in demanding environments.
How does the thermal overload protection work in this relay?
The relay employs thermal release mechanisms that monitor operational current, ensuring disconnection when currents exceed preset limits, thus preventing motor damage.
What is the significance of the FLC motor rating?
The FLC motor rating of 16A indicates the maximum continuous load this relay can reliably protect, making it suitable for motors within this range.
What type of circuits can this relay be integrated with?
This unit is designed to work with various industrial circuits, providing safe thermal protection for both main and auxiliary circuits, featuring screw-type terminal connections.
What are the installation requirements for this device?
The relay supports a standalone installation with versatile mounting options, accommodating vertical positioning as well as tilting for optimal accessibility.

