OS125GB03N3-42

Name: OS125GB03N3-42
Brand: ABB
SKU: OS125GB03N3-42

Abb's OS125GB03N3-42 is a manual operated switch fuse with 125A rating, 3+N poles, and a detachable neutral link. Perfect for demanding applications, it ensures reliable operation and easy installation.

Product ModelOS125GB03N3-42

Material Number1SCA129911R1001

Product ID75971

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High PerformanceThe OS125GB03N3-42 switch fuse is engineered to deliver exceptional performance in demanding electrical applications, ensuring reliable operation under various conditions.
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2. Detachable Neutral LinkThe integrated detachable neutral link (N3) allows for flexible configuration, making it easier to handle different electrical setups without compromising on safety and efficiency.
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3. Manual OperationDesigned for manual operation, this switch fuse provides a straightforward and intuitive interface, making it easy to switch on and off without the need for automation.
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4. Robust ConstructionBuilt with high-quality materials, the OS125GB03N3-42 switch fuse is designed to withstand harsh environmental conditions, ensuring a long lifespan and minimal maintenance.

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

147 mm

Product Net Height

140 mm

Product Net Depth / Length

115 mm

Product Net Weight

1.5 kg

Conventional Free-air Thermal Current (Ith)

Î = 40 Â°C 125 A

5. Easy InstallationThe compact design and straightforward installation process make the OS125GB03N3-42 switch fuse a convenient choice for electrical engineers and technicians, reducing setup time and effort.

Conventional Thermal Current (Ithe)

Fully Enclosed 125 A

Fourth Pole Type

Detachable Neutral Link Integrated Into the Mechanism

Fuse Size

A2-A4

Fuse System

British Standard

Handle Type

Handle and shaft not included

Mounting Type

Base mounting

Number of Poles

3+N

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

Special Functions

Detachable Neutral

Standards

IEC 60947-3

Switches Operating Mechanism

03 (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

1SCA129911R1001