SIEMENS 3RU21161FB0 IEC Thermal Overload Relay
The SIEMENS IEC Thermal Overload Relay (MPN 3RU21161FB0) is a 3-pole thermal protection device in Frame Size S00, designed for use with SIRIUS contactors of the same frame size. It features a 1NO/1NC auxiliary…
SKU 3G-OTH-39653
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The SIEMENS IEC Thermal Overload Relay (MPN 3RU21161FB0) is a 3-pole thermal protection device in Frame Size S00, designed for use with SIRIUS contactors of the same frame size. It features a 1NO/1NC auxiliary contact form, screw terminals, and a maximum voltage rating of 690V AC. The relay includes integrated bimetallic elements, eliminating the need for separate thermal units, and does not offer phase loss sensitivity.
Frequently Asked Questions
What is the SIEMENS 3RU21161FB0 overload relay used for?
The SIEMENS 3RU21161FB0 is a thermal overload relay used to protect motors from overheating due to overload or phase imbalance. It is designed for industrial applications with SIRIUS contactors in Frame Size S00, providing reliable protection up to 690V AC.
What are the specifications of the SIEMENS 3RU21161FB0 overload relay?
The SIEMENS 3RU21161FB0 is a 3-pole thermal overload relay with Frame Size S00, rated for 3.5 A to 5 A. It features 1NO/1NC auxiliary contacts, screw terminals, and a maximum voltage of 690V AC. It includes integrated bimetallic elements and does not offer phase loss sensitivity.
Where to buy the SIEMENS 3RU21161FB0 overload relay worldwide?
You can source the SIEMENS 3RU21161FB0 overload relay from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive genuine Siemens components for your motor protection needs.
How to select the correct SIEMENS overload relay for a motor?
To select the correct SIEMENS overload relay, match the relay's current range (e.g., 3.5 A to 5 A for the 3RU21161FB0) to the motor's full-load current. Ensure the frame size (S00) is compatible with your SIRIUS contactor. For motors without phase loss sensitivity requirements, this relay is suitable.
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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.
