Siemens Overload Relay: Electronic Protection, 3 Poles, 1NO/1NC, Frame Size S2
The SIEMENS Overload Relay: Electronic Protection (MPN 3RB31334UB0) is an IEC electronic overload relay in Frame Size S2, compatible with SIRIUS contactors of the same frame size. It features a 1NO/1NC auxiliary…
SKU 3G-OTH-44951
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: Electronic Protection (MPN 3RB31334UB0) is an IEC electronic overload relay in Frame Size S2, compatible 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, with a current range of 12 A to 50 A. This electronic type does not require thermal units and has no phase loss sensitivity.
Frequently Asked Questions
What is the SIEMENS 3RB31334UB0 overload relay used for?
The SIEMENS 3RB31334UB0 is an IEC electronic overload relay used to protect motors from overload and phase imbalance in industrial automation systems. It is compatible with SIRIUS contactors in Frame Size S2 and is suitable for applications requiring adjustable current protection from 12 A to 50 A.
What are the specifications of the SIEMENS 3RB31334UB0 overload relay?
The SIEMENS 3RB31334UB0 is a 3-pole electronic overload relay with Frame Size S2, a current range of 12 A to 50 A, and a maximum voltage rating of 690V AC. It features 1NO/1NC auxiliary contacts, screw terminals, and is compatible with SIRIUS contactors. No thermal units are required.
Where to buy the SIEMENS 3RB31334UB0 overload relay worldwide?
3G Electric supplies the SIEMENS 3RB31334UB0 overload relay to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this electronic overload relay.
How to select the correct SIEMENS overload relay for a motor?
To select the correct SIEMENS overload relay, match the frame size (S2) and current range (12 A to 50 A) to your motor's full-load current and the compatible SIRIUS contactor. For the 3RB31334UB0, ensure your system voltage does not exceed 690V AC and that you require electronic protection without thermal units.
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3G Electric supplies Siemens iec electronic overload relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
