ABB OS1250DA02 switch fuse offers high-performance motor protection with reliability and world-class performance, ideal for heavy industry applications.
Product ModelOS1250DA02
Material Number1SCA114058R1001
Product ID74596
Stock on Request
Last updated: 8/29/2026
Key Features
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1. High ReliabilityDesigned to provide consistent and reliable performance in demanding industrial environments.
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2. World-Class PerformanceEnsures optimal protection and efficiency for your motors.
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3. Heavy Industry ApplicationsSuitable for use in heavy industry settings where high-performance motor protection is crucial.
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4. Enhanced Safety FeaturesEquipped with advanced safety features to prevent electrical shocks and ensure safe operation.
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5. Durable ConstructionBuilt with durable materials to withstand harsh industrial conditions, ensuring a long lifespan.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Pollution Degree
3
Product Net Width
325 mm
Product Net Height
356 mm
Product Net Depth / Length
294 mm
Product Net Weight
19.04 kg 41.98 lb
Cable Cross-Section
2.5 ... 25 mm²
Conventional Free-air Thermal Current (Ith)
Π= 40 °C 1250 A
Conventional Thermal Current (Ithe)
Fully Enclosed 1000 A
Fuse Size
NH4a
Fuse System
DIN
Handle Type
Handle and shaft not included
Mounting Type
Base mounting
Number of Poles
2
Operating Mode
Front Operated
Pollution Degree
3
Position of Line Terminals
Top In - Bottom Out, Bottom In - Top Out
Power Loss
at Rated Operating Conditions per Pole 75 W
Rated Conditional Short-Circuit Current (Inc)
(690 V) 80 kA
Rated Current (In)
Main Circuit 1250 A
Rated Impulse Withstand Voltage (Uimp)
12 kV
Rated Insulation Voltage (Ui)
1000 V
Rated Operational Current AC-21A (Ie)
(380 ... 415 V) 1250 A (500 V) 1250 A (690 V) 1250 A
