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Siemens 3RB31134TB0 SIRIUS Electronic Overload Relay - IEC Electronic Overload Relays
SiemensIEC Electronic Overload Relays

Siemens 3RB31134TB0 SIRIUS Electronic Overload Relay

The SIEMENS Overload Relay: Electronic Protection is an IEC electronic overload relay from the SIRIUS series, designed for frame size S00 and compatible with S00 contactors. It features a 1NO/1NC auxiliary contact…

SKU 3G-OTH-44628

Brand
Siemens
Item
3RB31134TB0 SIRIUS Electronic Overload Relay
Part Number
3RB31134TB0
Category
IEC Electronic Overload Relays
Available to Order
Also known as:3RB31134TB0Siemens
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Technical Specifications

Siemens
Manufacturer Part Number
3RB31134TB0
Type
1NO/1NC, Frame Size S00, 4 A – 16 A
Poles
3
Frame Size
S00
Compatible Contactors
Frame Size S00
Auxiliary Contact Form
1NO/1NC
Maximum Voltage Rating
690V AC
Phase Loss Sensitivity
No
Thermal Units Required
Not Applicable to Electronic Type Overload Relays
Terminal Connection Type
Screw Terminals
Compatible Contactor Series
SIRIUS

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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 from the SIRIUS series, designed for frame size S00 and compatible with S00 contactors. It features a 1NO/1NC auxiliary contact form, screw terminals, and a maximum voltage rating of 690V AC, with a current range of 4 A to 16 A. This electronic type does not require thermal units and has no phase loss sensitivity.

Frequently Asked Questions

What is the SIEMENS 3RB31134TB0 overload relay used for?

The SIEMENS 3RB31134TB0 is an IEC electronic overload relay from the SIRIUS series, used to protect motors from overload and phase loss in industrial automation. It is designed for frame size S00 contactors and is suitable for applications requiring adjustable current protection from 4 A to 16 A at up to 690V AC.

What are the specifications of the SIEMENS 3RB31134TB0 overload relay?

The SIEMENS 3RB31134TB0 is an electronic overload relay with a current range of 4 A to 16 A, frame size S00, and a maximum voltage rating of 690V AC. It features 1NO/1NC auxiliary contacts, screw terminals, and is compatible with SIRIUS S00 contactors. No thermal units are required.

Where to buy the SIEMENS 3RB31134TB0 overload relay worldwide?

You can source the SIEMENS 3RB31134TB0 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 SIRIUS components for industrial applications.

How to select the correct SIEMENS overload relay for a motor?

To select the correct SIEMENS overload relay, match the relay's current range to the motor's full-load current. For the 3RB31134TB0, the adjustable range is 4 A to 16 A. Ensure the frame size (S00) matches your contactor series (SIRIUS). Use electronic types for precise protection without thermal units.

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
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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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