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 and compatible with S00 contactors. It features integrated bimetallic elements, eliminating the need for…
SKU 3G-OTH-39271
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 is an IEC thermal overload relay from the SIRIUS series, designed for frame size S00 and compatible with S00 contactors. It features integrated bimetallic elements, eliminating the need for separate thermal units, and provides 1NO/1NC auxiliary contacts with a maximum voltage rating of 690V AC. The relay uses screw terminals and has a current range of 0.18 A to 0.25 A, with no phase loss sensitivity.
Frequently Asked Questions
What is the SIEMENS 3RU21160CB0 overload relay used for?
The SIEMENS 3RU21160CB0 is an IEC thermal overload relay from the SIRIUS series, used to protect motors from overload and phase failure. It is designed for frame size S00 contactors and is common in industrial automation, pump control, and conveyor systems where reliable motor protection is required.
What are the specifications of the SIEMENS 3RU21160CB0 overload relay?
The SIEMENS 3RU21160CB0 is a 3-pole thermal overload relay with a current range of 0.18 A to 0.25 A, frame size S00, and 1NO/1NC auxiliary contacts. It has a maximum voltage rating of 690V AC, uses screw terminals, and includes integrated bimetallic elements — no separate thermal units needed.
Where to buy the SIEMENS 3RU21160CB0 overload relay worldwide?
3G Electric supplies the SIEMENS 3RU21160CB0 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 series thermal overload relay.
How to install the SIEMENS 3RU21160CB0 overload relay?
Mount the SIEMENS 3RU21160CB0 directly onto a compatible S00 frame size contactor. Wire the motor leads through the relay's integrated bimetallic elements and connect the 1NO/1NC auxiliary contacts to your control circuit. Set the current dial to match the motor's full-load amperage. Always follow local electrical codes.
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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.
