OS125GB04N1K

Name: OS125GB04N1K
Brand: ABB
SKU: OS125GB04N1K

The ABB OS125GB04N1K switch fuse is a high-performance, compact switch fuse designed for demanding applications. It features rapid fault clearance and a modular structure for easy installation, ensuring high protection and reliability in your electrical system.

Product ModelOS125GB04N1K

Material Number1SCA116752R1001

Product ID76015

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Protection and ReliabilityThe ABB OS125GB04N1K switch fuse is engineered to provide high protection and reliability, ensuring your electrical system operates safely and efficiently.
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2. Rapid Fault ClearanceDesigned with a contact design that enables rapid fault clearance, this switch fuse maintains its protection level even after a fault occurs, minimizing downtime and ensuring continuous operation.
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3. Compact InstallationThe modular structure of the ABB OS125GB04N1K allows for compact installation, saving space and reducing installation time. Its lightweight design further enhances efficiency and cost-effectiveness.
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4. Technical ExcellenceBuilt to meet IEC 60947-3 standards, this switch fuse offers superior technical performance. It features a rated insulation voltage of 1000 V, dielectric strength of 10 kV, and a rated impulse withstand voltage of 12 kV.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Pollution Degree

Product Net Width

182 mm

Product Net Height

140 mm

Product Net Depth / Length

165 mm

Product Net Weight

2.56 kg 5.64 lb

Conventional Free-air Thermal Current (Ith)

Î = 40 Â°C 125 A

5. Versatile ApplicationSuitable for a wide range of applications, the ABB OS125GB04N1K switch fuse is ideal for use in various electrical systems, including those requiring high current ratings and demanding operational conditions.

Conventional Thermal Current (Ithe)

Fully Enclosed 125 A

Fourth Pole Position

Left Side

Fourth Pole Type

Switched - With Solid Link

Fuse Size

A2-A4

Fuse System

British Standard

Handle Type

Direct mounted handle included

Mounting Type

Base mounting

Number of Poles

Operating Mode

Front Operated

Pollution Degree

Position of Line Terminals

Top In - Bottom Out, Bottom In - Top Out

Power Loss

at Rated Operating Conditions per Pole 4 W

Rated Conditional Short-Circuit Current (Inc)

(690 V) 80 kA

Rated Current (In)

Main Circuit 125 A

Rated Impulse Withstand Voltage (Uimp)

8 kV

Rated Insulation Voltage (Ui)

1000 V

Rated Operational Current AC-21A (Ie)

(500 V) 125 A (690 V) 125 A

Rated Operational Current AC-22A (Ie)

(500 V) 125 A (690 V) 125 A

Rated Operational Current AC-23A (Ie)

(500 V) 125 A (690 V) 125 A

Rated Operational Power AC-23A (Pe)

(220 ... 240 V) 37 kW (400 V) 55 kW (415 V) 55 kW (500 V) 75 kW (690 V) 110 kW

Rated Operational Voltage

Main Circuit 690 V AC

Rated Short-time Withstand Current Low Voltage (Icw)

for 1 s 5 kiloampere rms

Standards

IEC 60947-3

Switches Operating Mechanism

04 (Left Side)

Terminal Type

Lug terminals

Terminal Width

20 mm

Tightening Torque

15 â¦ 22 NÂ·m

Tightening Torque

15 â¦ 22 NÂ·m

Object Classification Code

ETIM 8

EC001040 - Fuse switch disconnector

ETIM 9

EC001040 - Fuse switch disconnector

UNSPSC

39122233

IDEA Granular Category Code (IGCC)

5291 >> Fuse switch disconnector

eClass

V11.1 : 27371401

WEEE Category

5. Small Equipment (No External Dimension More Than 50 cm)

Manufacturer ID

1SCA116752R1001