OS250B04N1

Name: OS250B04N1
Brand: ABB
SKU: OS250B04N1

The OS250B04N1 is a high-performance switch fuse designed by ABB, offering reliable operation in demanding applications. It is rated for 250A and features a modular design for versatile installation options. Ideal for AC and DC applications, this switch fuse ensures safe and efficient electrical connections.

Product ModelOS250B04N1

Material Number1SCA022750R7040

Product ID75205

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High-Performance DesignThe OS250B04N1 is engineered to deliver world-class performance, making it suitable for the most demanding electrical applications.
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2. Versatile InstallationWith its modular design, the switch fuse can be installed in various configurations, including 2-, 3-, and 4-pole setups, to meet specific requirements.
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3. Reliable OperationDesigned for reliable operation in AC and DC applications, the OS250B04N1 ensures consistent performance under various conditions.
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4. Safety FeaturesThe switch fuse is built with safety in mind, featuring high insulation voltage and dielectric strength to prevent electrical shocks and ensure safe operation.
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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

154 mm

Product Net Height

262 mm

Product Net Depth / Length

193 mm

Product Net Weight

4.7 kg

Fuse Size

B1-B3

Fuse System

British Standard

5. Compliance and CertificationsThe OS250B04N1 meets international standards and is certified for use in various regions, including compliance with UL98 and other relevant regulations.

Operating Mode

Front Operated

Power Loss

at Rated Operating Conditions per Pole 13 W

Rated Conditional Short-Circuit Current (Inc)

(690 V AC) 80 kA

Rated Current (In)

Main Circuit 250 A

Rated Impulse Withstand Voltage (Uimp)

Main Circuit 12 kV

Rated Operational Current AC-21A (Ie)

(380 ... 415 V) 250 A (500 V AC) 250 A (690 V AC) 250 A

Rated Operational Current AC-22A (Ie)

(380 ... 415 V) 250 A (500 V) 250 A (690 V) 250 A

Rated Operational Current AC-23A (Ie)

(380 ... 415 V) 250 A (500 V) 250 A (690 V) 250 A

Rated Operational Voltage

Main Circuit 690 V AC

Rated Short-time Withstand Current Low Voltage (Icw)

for 1 s 8 kA

Standards

IEC 60947-3

Terminal Type

Lug terminals

Tightening Torque

30 â¦ 44 NÂ·m

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

1SCA022750R7040