The ABB OS1250D04FP switch fuse is a high-performance, 4-pole device rated at 1250A. It is designed for demanding electrical systems, ensuring safe and efficient operation.
Product ModelOS1250B02
Material Number1SCA114069R1001
Product ID75739
Stock on Request
Last updated: 8/29/2026
Key Features
1
1. High Performance and ReliabilityThe ABB OS1250D04FP switch fuse is engineered to deliver exceptional performance in high-demand electrical systems, ensuring reliable operation under various conditions.
2
2. 4-Pole ConfigurationWith a 4-pole configuration, this switch fuse provides comprehensive protection and control, making it suitable for complex electrical setups.
3
3. 1250A RatingThe device is rated at 1250A, making it capable of handling high current flows, which is essential for large-scale electrical installations.
4
4. DIN ComplianceThe OS1250D04FP is designed to meet DIN standards, ensuring compatibility with a wide range of electrical systems and applications.
5
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
294 mm
Product Net Height
319 mm
Product Net Depth / Length
356 mm
Product Net Weight
19.8 kg
Cable Cross-Section
2.5 ... 25 mm²
5. Efficient OperationThis switch fuse is designed to operate efficiently, minimizing energy losses and ensuring that electrical systems run smoothly and safely.
Conventional Free-air Thermal Current (Ith)
Π= 40 °C 1250 A
Conventional Thermal Current (Ithe)
Fully Enclosed 1000 A
Fuse Size
D1
Fuse System
British Standard
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
