Siemens Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC, Frame Size S00
The SIEMENS Overload Relay: Thermal Protection (MPN 3RU21160KB0) is an IEC thermal overload relay with a Frame Size S00, designed for use with SIRIUS contactors of the same frame size. It features integrated…
SKU 3G-OTH-40155
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
Need installation or engineering help?
Ask a question
Product Description
The SIEMENS Overload Relay: Thermal Protection (MPN 3RU21160KB0) is an IEC thermal overload relay with a Frame Size S00, designed for use with SIRIUS contactors of the same frame size. It features integrated bimetallic elements, screw terminals, and a 1NO/1NC auxiliary contact form, with a maximum voltage rating of 690V AC. This relay does not include phase loss sensitivity and requires no separate thermal units.
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 3RU21160KB0 overload relay used for?
The SIEMENS 3RU21160KB0 is an IEC thermal overload relay that protects motors from overheating by monitoring current through integrated bimetallic elements. It is used with SIRIUS contactors of Frame Size S00 in industrial control panels, conveyors, and pump systems across machining, material handling, and HVAC applications.
What are the specifications of the SIEMENS 3RU21160KB0 overload relay?
The SIEMENS 3RU21160KB0 is a 3-pole thermal overload relay with Frame Size S00, current range 0.9 A – 1.25 A, auxiliary contact form 1NO/1NC, maximum voltage rating 690V AC, and screw terminals. It has no phase loss sensitivity and includes integrated bimetallic elements, requiring no separate thermal units.
Where to buy the SIEMENS 3RU21160KB0 overload relay worldwide?
3G Electric supplies the SIEMENS 3RU21160KB0 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-compatible thermal protection relay.
How to select the correct SIEMENS overload relay for a SIRIUS contactor?
Select a SIEMENS overload relay that matches the contactor's frame size and current range. For the 3RU21160KB0, use it with SIRIUS contactors of Frame Size S00 and motor full-load current between 0.9 A and 1.25 A. Ensure the auxiliary contact configuration (1NO/1NC) meets your control circuit requirements.
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.
