Siemens Overload Relay NO/NC, 9 → 12.5 A, 12.5 A, 7.5 kW

Enrgtech Part No: ET14070436
|
Manufacturer Part No:
3RU2126-1KB0
|
Manufacturer: Siemens

3RU2126-1KB0 Siemens Overload Relay NO/NC, 9 → 12.5 A, 12.5 A, 7.5 kW

Product Information

Reset Method:

Automatic, Manual

Normal State Configuration:

1NO + 1NC

Pole Configuration:

Operating Temperature Range:

-40 → +70 °C

Contact Current Rating:

12.5 A

Series:

SIRIUS 3RU2

Minimum Operating Temperature:

-40°C

Length:

87mm

Mounting Style:

Direct Contactor

Width:

45mm

Depth:

73mm

Number Of Auxiliary Contacts:

Checking for live stock

Discover the Siemens 3RU2126 1KB0 Thermal Overload Relay, part of the reliable SIRIUS 3RU2 series. Designed to protect three-phase motors in demanding industrial applications, this thermal overload relay covers a current range of 9–12.5 A and features class 10 tripping. It offers both manual and automatic reset options. Compact yet robust, it seamlessly mounts to Siemens 3RT2 size S0 contactors and delivers dependable protection against overload, phase loss, and phase asymmetry.

Why Choose the Siemens Overload Relay?

When motor protection matters, the 3RU2126 1KB0 stands out for its blend of compact design, high performance, and ease of integration. With an adjustable current range that covers the most common demands and a fast response to fault conditions, this relay ensures your motors stay safe without unnecessary downtime. Its compatibility with Siemens 3RT2 contactors means simple panel assembly and space savings. Plus, you get trusted Siemens engineering backed by UL/CSA approvals—a smart choice for reliable and professional motor circuit protection.

Product Core Features:

Adjustable Overload Protection (9 – 12.5 A)
Class 10 Trip Characteristic
Manual or Automatic Reset
Phase Loss & Phase Asymmetry Protection
1 NO + 1 NC Auxiliary Contacts
Screw Terminal Connections
Contactor Mounting for 3RT2 Size S0
Wide Operating Temperature Range
High-Spec Insulation & Surge Resistance
Compact Footprint.

Siemens Sirius Migration(Technical Reference)

Switching Devices for Load Feeders(Technical Reference)

Solutions for frequent switching or soft starting(Technical Reference)

Sirius Innovations Switching Devices(Technical Reference)

Sirius Innovation Accessory Guide(Technical Reference)

Sirius Innovation Catalogue(Technical Reference)

Environmental Product Declaration(Technical Reference)

Datasheet_3RU2126-1KB0(Technical Reference)

Basic Information(Technical Reference)

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Yes. Our products in Contactor Overload Relays category are shipped in lowest possible time.

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