Siemens Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC, Frame Size S2
The SIEMENS Overload Relay: Thermal Protection (MPN 3RU21364RB0) is an IEC thermal overload relay in Frame Size S2, designed for use with SIRIUS contactors of the same frame size. It features a 1NO/1NC auxiliary…
SKU 3G-OTH-42394
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The SIEMENS Overload Relay: Thermal Protection (MPN 3RU21364RB0) is an IEC thermal overload relay in Frame Size S2, 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 3RU21364RB0 overload relay used for?
The SIEMENS 3RU21364RB0 is an IEC thermal overload relay used to protect motors from overcurrent and phase imbalance. It is designed for industrial applications with SIRIUS contactors of Frame Size S2, providing reliable thermal protection via integrated bimetallic elements.
What are the specifications of the SIEMENS 3RU21364RB0 overload relay?
The SIEMENS 3RU21364RB0 is a thermal overload relay with Frame Size S2, 3 poles, 1NO/1NC auxiliary contacts, screw terminals, and a maximum voltage rating of 690V AC. It includes integrated bimetallic elements and does not offer phase loss sensitivity. Compatible with SIRIUS contactors of Frame Size S2.
Where to buy the SIEMENS 3RU21364RB0 overload relay worldwide?
You can source the SIEMENS 3RU21364RB0 overload relay worldwide through 3G Electric. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to select the correct SIEMENS overload relay for a SIRIUS contactor?
To select the correct SIEMENS overload relay, match the frame size of the relay to the SIRIUS contactor. For the 3RU21364RB0, use Frame Size S2 contactors. Verify the current range (70–80 A), voltage rating (690V AC), and auxiliary contact configuration (1NO/1NC) meet your motor protection requirements.
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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.
