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Siemens Overload Relay: Electronic Protection, 2 Poles, 1NO/1NC, Frame Size A - IEC Electronic Overload Relays
SiemensIEC Electronic Overload Relays

Siemens Overload Relay: Electronic Protection, 2 Poles, 1NO/1NC, Frame Size A

The SIEMENS Overload Relay: Electronic Protection is an IEC electronic overload relay with a Frame Size A, designed for use with Frame Size A contactors in the Class 48 Overload Relays series. It features a 1NO/1NC…

SKU 3G-OTH-45175

Brand
Siemens
Item
Overload Relay: Electronic Protection, 2 Poles, 1NO/1NC, Frame Size A
Category
IEC Electronic Overload Relays
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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

Technical Specifications

Siemens
Manufacturer Part Number
3UB88134AB2
Type
1NO/1NC, Frame Size A, 0.25 A – 1 A
Poles
2
Frame Size
A
Compatible Contactors
Frame Size A
Auxiliary Contact Form
1NO/1NC
Maximum Voltage Rating
690V AC
Thermal Units Required
Not Applicable to Electronic Type Overload Relays
Terminal Connection Type
Screw Terminals
Compatible Contactor Series
Class 48 Overload Relays

Technical Documents

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS Overload Relay: Electronic Protection is an IEC electronic overload relay with a Frame Size A, designed for use with Frame Size A contactors in the Class 48 Overload Relays series. It features a 1NO/1NC auxiliary contact form, screw terminals, and a maximum voltage rating of 690V AC. Thermal units are not applicable to this electronic type.

Frequently Asked Questions

What is the SIEMENS 3UB88134AB2 overload relay used for?

The SIEMENS 3UB88134AB2 is an IEC electronic overload relay used to protect motors from overcurrent and phase loss. It is designed for use with Frame Size A contactors in the Class 48 Overload Relays series, providing reliable protection in industrial automation and machinery applications.

What are the specifications of the SIEMENS 3UB88134AB2 overload relay?

The SIEMENS 3UB88134AB2 is a 2-pole electronic overload relay with a 1NO/1NC auxiliary contact form, screw terminals, and a maximum voltage rating of 690V AC. It has a current range of 0.25 A to 1 A and is compatible with Frame Size A contactors. Thermal units are not required.

Where to buy the SIEMENS 3UB88134AB2 overload relay worldwide?

3G Electric supplies the SIEMENS 3UB88134AB2 overload relay 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 overload relay for a Siemens contactor?

To select the correct overload relay, match the frame size and current range to your motor's full-load amps. The SIEMENS 3UB88134AB2 is designed for Frame Size A contactors and covers 0.25 A to 1 A. Ensure the auxiliary contact configuration (1NO/1NC) meets your control circuit requirements.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

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.

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