OS400J03K

Name: OS400J03K
Brand: ABB
SKU: OS400J03K

The ABB OS400J03 is a high-performance disconnect switch designed for motor disconnects and industrial control panels. It features a 400A amperage rating, 350HP horsepower, and a 3-pole configuration. With its front-operated fusible open design and modular construction, it ensures safety and reliability in various applications.

Product ModelOS400J03K

Material Number1SCA117773R1001

Product ID76083

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliable PerformanceThe ABB OS400J03 offers reliable performance with its 400A amperage rating and 350HP horsepower, making it suitable for demanding industrial applications.
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2. Enhanced SafetyThe front-operated fusible open design reduces the risk of shock to authorized personnel by isolating fuses in the off position.
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3. Modular ConstructionThe modular construction of the ABB OS400J03 allows for easy installation and maintenance, enhancing overall efficiency.
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4. Improved Safety FeaturesThe switch features finger-proof dead front construction and terminal shrouds to reduce the risk of touching live parts, improving safety and reliability.
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Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Product Net Width

360 mm

Product Net Height

365 mm

Product Net Depth / Length

175 mm

Product Net Weight

6.55 kg

Fuse Size

400 A

Fuse System

Class J

5. Versatile ApplicationThe ABB OS400J03 can be used equally well with either top or bottom incoming power feed, making it versatile for various installation configurations.

Operating Mode

Front Operated

Power Loss

at Rated Operating Conditions per Pole 30 W

Rated Conditional Short-Circuit Current (Inc)

(690 V AC) 80 kA

Rated Current (In)

Main Circuit 400 A

Rated Impulse Withstand Voltage (Uimp)

Main Circuit 12 kV

Rated Operational Current AC-21A (Ie)

(380 ... 415 V) 400 A (500 V AC) 400 A (690 V AC) 400 A

Rated Operational Current AC-22A (Ie)

(380 ... 415 V) 400 A (500 V) 400 A (690 V) 400 A

Rated Operational Current AC-23A (Ie)

(380 ... 415 V) 400 A (500 V) 400 A (690 V) 400 A

Rated Operational Voltage

Main Circuit 600 V AC

Rated Short-time Withstand Current Low Voltage (Icw)

for 1 s 14 kA

Standards

UL98 IEC 60947-3

Terminal Type

Lug terminals

Tightening Torque

30 â¦ 44 NÂ·m

Maximum Operating Voltage UL/CSA

Main Circuit 600 V AC Main Circuit 250 V DC

Ampere Rating

400 A

Tightening Torque

30 â¦ 44 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

1SCA117773R1001