Siemens Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC, Frame Size S00
The SIEMENS Overload Relay: Thermal Protection (MPN 3RU21161EB0) is an IEC thermal overload relay in Frame Size S00, designed for use with SIRIUS contactors of the same frame size. It features a 1NO/1NC auxiliary…
SKU 3G-OTH-39626
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 Overload Relay: Thermal Protection (MPN 3RU21161EB0) is an IEC thermal overload relay 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 3RU21161EB0 overload relay used for?
The SIEMENS 3RU21161EB0 is an IEC thermal overload relay that protects motors from overheating due to overload or phase imbalance. It is used with SIRIUS contactors in industrial automation, pump control, and HVAC systems. 3G Electric supplies this relay globally, handling logistics and customs for worldwide delivery.
What are the specifications of the SIEMENS 3RU21161EB0 overload relay?
The SIEMENS 3RU21161EB0 is a 3-pole thermal overload relay with Frame Size S00, rated 2.8 A – 4 A. It has a 1NO/1NC auxiliary contact form, screw terminals, and a maximum voltage rating of 690V AC. It includes integrated bimetallic elements and does not offer phase loss sensitivity.
Where to buy the SIEMENS 3RU21161EB0 overload relay worldwide?
3G Electric supplies the SIEMENS 3RU21161EB0 overload relay to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this SIRIUS-compatible thermal overload relay.
How to select the correct SIEMENS overload relay for a motor?
Select a SIEMENS overload relay like the 3RU21161EB0 by matching its current range (2.8 A – 4 A) to the motor full-load current. Ensure the frame size (S00) matches your SIRIUS contactor. For motors with phase loss risk, choose a relay with phase loss sensitivity; this model does not include that feature.
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Common applications for SiemensSiemens Products
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.
