Siemens Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC, Frame Size S00
The SIEMENS Overload Relay is an IEC thermal overload relay from the SIRIUS series, designed for frame size S00 contactors. It features integrated bimetallic elements, eliminating the need for separate thermal units…
SKU 3G-OTH-40019
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 is an IEC thermal overload relay from the SIRIUS series, designed for frame size S00 contactors. It features integrated bimetallic elements, eliminating the need for separate thermal units, and provides 1NO/1NC auxiliary contacts with screw terminals. The relay has a maximum voltage rating of 690V AC and does not include phase loss sensitivity.
Frequently Asked Questions
What is the SIEMENS 3RU21160HB0 overload relay used for?
The SIEMENS 3RU21160HB0 is an IEC thermal overload relay from the SIRIUS series, used to protect motors from overcurrent and phase imbalance. It is designed for frame size S00 contactors and provides 1NO/1NC auxiliary contacts with screw terminals, suitable for industrial motor control applications.
What are the specifications of the SIEMENS 3RU21160HB0 overload relay?
The SIEMENS 3RU21160HB0 is a 3-pole thermal overload relay with a current range of 0.55 A – 0.8 A, frame size S00, and a maximum voltage rating of 690V AC. It includes integrated bimetallic elements, 1NO/1NC auxiliary contacts, and screw terminals. It does not have phase loss sensitivity.
Where to buy the SIEMENS 3RU21160HB0 overload relay worldwide?
You can source the SIEMENS 3RU21160HB0 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 SIRIUS series components.
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., 0.55 A – 0.8 A for the 3RU21160HB0) to the motor's full-load current. Ensure the frame size (S00) is compatible with your contactor series (SIRIUS). Use screw terminals for wiring and verify the voltage rating (690V AC) meets your system requirements.
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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.
