OS630D21

Name: OS630D21
Brand: ABB
SKU: OS630D21

The ABB OS630D21 switch fuse is a high-performance solution for electrical protection. It features rapid fault clearance, compact design, and adjustable installation depths, making it versatile for various applications.

Product ModelOS630D21

Material Number1SCA022835R7850

Product ID74857

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Protection and ReliabilityThe ABB OS630D21 switch fuse ensures high protection and reliability, maintaining its protection level even after a fault occurs. Its contact design enables rapid fault clearance, ensuring minimal downtime and maximum safety.
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2. Compact DesignThe OS630D21 is designed to be compact, allowing for installation in smaller enclosures. This saves both money and installation space, making it ideal for space-constrained environments.
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3. Adjustable Installation DepthsThe adjustable shaft of the OS630D21 switch fuse allows for a range of installation depths, providing flexibility in panel design. This modular structure ensures easy installation and customization to meet specific installation requirements.
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4. Technical SpecificationsThe OS630D21 switch fuse is rated for 630A and 690V, with a nominal continuous current of 630A. It also features a rated operational power of 355kW at 400V and a conditional short-circuit current of 80kA at 415V.

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

341 mm

Product Net Height

306 mm

Product Net Depth / Length

233 mm

Product Net Weight

14.39 kg 31.72 lb

Conventional Free-air Thermal Current (Ith)

Î = 40 Â°C 630 A

5. Versatile ApplicationsThe ABB OS630D21 switch fuse is suitable for various applications, including those requiring high thermal current ratings. It is designed to operate in ambient temperatures up to 35°C and temporarily up to 40°C, ensuring reliable performance in different environments.

Conventional Thermal Current (Ithe)

Fully Enclosed 570 A

Fuse System

DIN

Handle Type

Handle and shaft not 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 46 W

Rated Conditional Short-Circuit Current (Inc)

(690 V) 80 kA

Rated Current (In)

Main Circuit 630 A

Rated Impulse Withstand Voltage (Uimp)

12 kV

Rated Insulation Voltage (Ui)

1000 V

Rated Operational Current AC-21A (Ie)

(500 V) 630 A (690 V) 630 A

Rated Operational Current AC-22A (Ie)

(380 ... 415 V) 630 A (500 V) 630 A (690 V) 630 A

Rated Operational Current AC-23A (Ie)

(380 ... 415 V) 630 A (500 V) 630 A (690 V) 630 A

Rated Operational Power AC-23A (Pe)

(220 ... 240 V) 200 kW (400 V) 355 kW (415 V) 355 kW (500 V) 450 kW (690 V) 630 kW

Rated Operational Voltage

Main Circuit 690 V AC

Rated Short-time Withstand Current Low Voltage (Icw)

for 1 s 18 kiloampere rms

Standards

IEC 60947-3

Switches Operating Mechanism

21 (Between the Poles)

Terminal Type

Lug terminals

Terminal Width

39 mm

Tightening Torque

50 ... 75 NÂ·m

Tightening Torque

50 ... 75 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

1SCA022835R7850