Siemens Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC, Frame Size S00
The SIEMENS Overload Relay: Thermal Protection (MPN 3RU21161KB0) 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-41230
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
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Product Description
The SIEMENS Overload Relay: Thermal Protection (MPN 3RU21161KB0) 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 has a current range of 9 A to 12.5 A.
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 3RU21161KB0 overload relay used for?
The SIEMENS 3RU21161KB0 is an IEC thermal overload relay that protects motors from overcurrent and phase imbalance. It is used with SIRIUS contactors in industrial control panels, conveyors, pumps, and HVAC systems. 3G Electric supplies this relay worldwide for motor protection applications.
What are the specifications of the SIEMENS 3RU21161KB0 overload relay?
The SIEMENS 3RU21161KB0 is a 3-pole thermal overload relay with Frame Size S00, current range 9 A – 12.5 A, auxiliary contacts 1NO/1NC, screw terminals, and maximum voltage 690V AC. It includes integrated bimetallic elements and requires no separate thermal units.
Where to buy the SIEMENS 3RU21161KB0 overload relay worldwide?
3G Electric supplies the SIEMENS 3RU21161KB0 overload relay worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this SIRIUS-compatible thermal protection relay.
How to select the correct overload relay for a SIRIUS contactor?
Select a SIEMENS overload relay with the same Frame Size as your SIRIUS contactor. For the 3RU21161KB0, use Frame Size S00 contactors. Match the relay's current range (9 A – 12.5 A) to your motor's full-load current. Ensure auxiliary contact configuration (1NO/1NC) meets your control circuit needs.
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.
