`"ABB OS1250DA11K switch fuse: Front-operated, 2-pole, reliable, and efficient. Ideal for various applications. Shop now for top-quality electrical solutions!"`
Product ModelOS1250DA11K
Material Number1SCA143378R1001
Product ID74902
Stock on Request
Last updated: 8/29/2026
Key Features
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1. ReliabilityThe ABB OS1250DA11K switch fuse is engineered to provide consistent performance, ensuring your electrical systems operate smoothly and safely.
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2. EfficiencyDesigned with efficiency in mind, this switch fuse minimizes energy loss and maximizes system reliability, making it a cost-effective solution.
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3. Front-OperatedThe front-operated design allows for easy access and operation, reducing the risk of accidental activation and enhancing user safety.
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4. Versatile ApplicationsSuitable for a wide range of applications, including industrial and commercial settings, the OS1250DA11K switch fuse offers flexibility and adaptability.
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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
Pollution Degree
3
Product Net Width
365 mm
Product Net Height
322 mm
Product Net Depth / Length
356 mm
Product Net Weight
21.9 kg
Conventional Free-air Thermal Current (Ith)
Π= 40 °C 1250 A
5. High-Quality MaterialsConstructed from high-quality materials, this switch fuse ensures durability and longevity, reducing the need for frequent replacements and maintenance.
Conventional Thermal Current (Ithe)
Fully Enclosed 1000 A
Fuse Size
NH4a
Fuse System
DIN
Handle Type
Direct mounted handle
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
