The OS1250B03P switch fuse by ABB is a 3-pole, base-mounted switch-disconnector with an IP65-rated handle and shaft. It ensures reliable operation and high mechanical durability.
Product ModelOS1250B03P
Material Number1SCA105250R1001
Product ID75844
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Robust Mechanical Durability DescriptionThe OS1250B03P switch fuse is engineered to withstand the rigors of industrial environments, ensuring consistent performance over time. Its robust construction guarantees reliable operation under various conditions.
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2. IP65 Protection DescriptionWith an IP65 rating, this switch fuse is protected against dust and water jets, making it suitable for use in harsh environments such as ship docks, construction sites, and tunnels.
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3. 3-Pole Configuration DescriptionThe 3-pole configuration of the OS1250B03P switch fuse allows for efficient and reliable switching operations, making it ideal for applications requiring multiple circuit control.
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4. Base Mounting DescriptionDesigned for base mounting, this switch fuse offers easy installation and flexibility in terms of mounting options, making it a versatile choice for various electrical applications.
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
429 mm
Product Net Height
356 mm
Product Net Depth / Length
366 mm
Product Net Weight
29.07 kg 64.09 lb
Conventional Free-air Thermal Current (Ith)
Π= 40 °C 1250 A
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5. High Performance DescriptionThe OS1250B03P switch fuse is designed to handle high currents and voltages, ensuring it meets the demands of high-performance applications. Its ability to handle 1250 A at 500 V makes it suitable for a wide range of industrial settings.
Conventional Thermal Current (Ithe)
Fully Enclosed 1000 A
Fuse Size
D1
Fuse System
British Standard
Handle Type
Pistol handle and shaft included
Mounting Type
Base mounting
Number of Poles
3
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
