Siemens Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC
The SIEMENS Overload Relay is an IEC thermal overload relay with three poles and a 1NO/1NC auxiliary contact form, designed for Frame Size S00. It features a maximum voltage rating of 690V AC, screw terminals, and…
SKU 3G-OTH-41448
Need installation or engineering help?
Ask a question
Product Description
The SIEMENS Overload Relay is an IEC thermal overload relay with three poles and a 1NO/1NC auxiliary contact form, designed for Frame Size S00. It features a maximum voltage rating of 690V AC, screw terminals, and integrated bimetallic elements, eliminating the need for separate thermal units. This relay is compatible with SIRIUS contactors of Frame Size S00 and does not include phase loss sensitivity.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the SIEMENS 3RU21164AB0 overload relay used for?
The SIEMENS 3RU21164AB0 is an IEC thermal overload relay used to protect motors from overcurrent and phase imbalance. It is designed for industrial applications requiring reliable thermal protection, compatible with SIRIUS contactors of Frame Size S00. The integrated bimetallic elements eliminate the need for separate thermal units.
What are the specifications of the SIEMENS 3RU21164AB0 overload relay?
The SIEMENS 3RU21164AB0 is a 3-pole thermal overload relay with a 1NO/1NC auxiliary contact form, rated for 690V AC maximum. It features screw terminals, Frame Size S00, and integrated bimetallic elements. It does not include phase loss sensitivity and is compatible with SIRIUS contactors of Frame Size S00.
Where to buy the SIEMENS 3RU21164AB0 overload relay worldwide?
You can source the SIEMENS 3RU21164AB0 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 components for industrial applications.
How to select the correct SIEMENS overload relay for a motor?
To select the correct SIEMENS overload relay, match the frame size (S00 for the 3RU21164AB0) to your SIRIUS contactor and verify the motor's full-load current falls within the relay's adjustment range. Ensure the relay's maximum voltage rating (690V AC) exceeds your supply voltage. Consult the motor nameplate and Siemens selection tables for precise matching.
Used in
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.
