OS250D21LRP

Name: OS250D21LRP
Brand: ABB
SKU: OS250D21LRP

"Abb's OS250D21LRP switch fuse provides reliable motor protection for heavy industry applications. With high-performance capabilities and efficient design, it ensures optimal electrical safety and efficiency."

Product ModelOS250D21LRP

Material Number1SCA022852R8500

Product ID76007

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Reliability and Performance\"The OS250D21LRP switch fuse by Abb is engineered for reliability and high-performance, making it the optimal solution for motor protection in demanding industrial settings.\"
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2. Versatile Installation\"This modular design allows for 2-, 3-, and 4-pole installation, offering flexibility to suit various special requirements and applications.\"
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3. Efficient Power Management\"With minimal cable cross-section requirements, the OS250D21LRP switch fuse ensures efficient power management, reducing energy loss and enhancing overall system performance.\"
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4. Operational Voltage and Current\"Rated for operational voltage AC-20 and DC-20 at 1000 V, and operational current up to 500 V, this fuse supports a wide range of industrial applications.\"

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

353 mm

Product Net Height

150 mm

Product Net Depth / Length

234 mm

Product Net Weight

6.1 kg

Conventional Free-air Thermal Current (Ith)

Î = 40 Â°C 250 A

5. Durability and Safety\"Designed to withstand harsh environments, the OS250D21LRP switch fuse offers derating options for mounting on walls, ceilings, and in various enclosures, ensuring safe and reliable operation.\"

Conventional Thermal Current (Ithe)

Fully Enclosed 250 A

Fuse System

DIN

Handle Type

Pistol handle and shaft included

Mounting Type

Base mounting

Number of Poles

Operating Mode

Front Operated

Pollution Degree

Position of Line Terminals

Left In - Right Out

Power Loss

at Rated Operating Conditions per Pole 17 W

Rated Conditional Short-Circuit Current (Inc)

(690 V) 80 kA

Rated Current (In)

Main Circuit 250 A

Rated Impulse Withstand Voltage (Uimp)

12 kV

Rated Insulation Voltage (Ui)

1000 V

Rated Operational Current AC-21A (Ie)

(500 V) 250 A (690 V) 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 Power AC-23A (Pe)

(220 ... 240 V) 75 kW (400 V) 140 kW (415 V) 145 kW (500 V) 170 kW (690 V) 250 kW

Rated Operational Voltage

Main Circuit 690 V AC

Rated Short-time Withstand Current Low Voltage (Icw)

for 1 s 8 kiloampere rms

Standards

IEC 60947-3

Switches Operating Mechanism

21 (Between the Poles)

Terminal Type

Lug terminals

Terminal Width

25 mm

Tightening Torque

30 ... 44 NÂ·m

Tightening Torque

30 ... 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

1SCA022852R8500