Siemens Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC, Frame Size S00
The SIEMENS Overload Relay: Thermal Protection (MPN 3RU21161AB0) is an IEC thermal overload relay in Frame Size S00, designed for use with SIRIUS contactors of the same frame size. It features 1NO/1NC auxiliary…
SKU 3G-OTH-40250
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The SIEMENS Overload Relay: Thermal Protection (MPN 3RU21161AB0) is an IEC thermal overload relay in Frame Size S00, designed for use with SIRIUS contactors of the same frame size. It features 1NO/1NC auxiliary contacts, screw terminals, and integrated bimetallic elements, eliminating the need for separate thermal units. The relay has a maximum voltage rating of 690V AC and does not include phase loss sensitivity.
Frequently Asked Questions
What is the SIEMENS 3RU21161AB0 overload relay used for?
The SIEMENS 3RU21161AB0 is an IEC thermal overload relay used to protect motors from overheating due to overload or phase failure. It is designed for use with SIRIUS contactors in Frame Size S00, making it suitable for industrial motor control applications in manufacturing, HVAC, and pumping systems.
What are the specifications of the SIEMENS 3RU21161AB0 overload relay?
The SIEMENS 3RU21161AB0 is a thermal overload relay with Frame Size S00, 3 poles, 1NO/1NC auxiliary contacts, and screw terminals. It has a maximum voltage rating of 690V AC, an adjustable current range of 1.1 A to 1.6 A, and integrated bimetallic elements. It does not include phase loss sensitivity.
Where to buy the SIEMENS 3RU21161AB0 overload relay worldwide?
You can source the SIEMENS 3RU21161AB0 overload relay worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine Siemens components for motor protection applications.
How to select the correct SIEMENS overload relay for a motor?
To select the correct SIEMENS overload relay, match the relay's current range to the motor's full-load current. For the 3RU21161AB0, the range is 1.1 A to 1.6 A. Ensure the relay's frame size (S00) matches the SIRIUS contactor. Use screw terminals for wiring. Always consult the motor nameplate and Siemens documentation for proper coordination.
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3G Electric supplies Siemens iec thermal overload relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
