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ABBFuse protector
Product Model

OS1250D04F

Manufacturer

ABB

Category

Fuse protector

Product ID

75259

In Stock
Last updated: 2025/4/18
View Specifications
ABB OS1250D04F

Selling Points

  • 1Compact Design: The OS1250D04F features a compact, heavy-duty design suitable for various industrial applications.
  • 2Safety Features: Equipped with positive opening operation to safeguard users against welded contacts due to overloads or short circuits.
  • 3Clear Indication: Clear "ON" and "OFF" designations ensure easy operation, whether the door is open or closed.
  • 4Visible Blades: Visible blades offer additional safety for non-fusible switches, enhancing overall safety.
  • 5Worldwide Shipping: Available for worldwide shipping via DHL, UPS, and TNT, ensuring global accessibility.
Product Details
OS1250D04F
ABB

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

ParameterValueParameterValue
Pollution Degree
3
Product Net Width
539 mm
Product Net Height
356 mm
Product Net Depth / Length
294 mm
Product Net Weight
34.875 kg 76.89 lb
Conventional Free-air Thermal Current (Ith)
Θ = 40 °C 1250 A
Conventional Thermal Current (Ithe)
Fully Enclosed 1000 A
Fourth Pole Type
Switched - Fusible Pole
Fuse Size
NH4
Fuse System
DIN
Handle Type
Handle and shaft not included
Mounting Type
Base mounting
Number of Poles
4
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
Rated Operational Current AC-21B (Ie)
(500 V) 1250 A (690 V) 1250 A
Rated Operational Current AC-22A (Ie)
(380 ... 415 V) 1250 A
Rated Operational Current AC-22B (Ie)
(500 V) 1250 A (690 V) 1250 A
Rated Operational Current AC-23A (Ie)
(380 ... 415 V) 1000 A
Rated Operational Current AC-23B (Ie)
(500 V) 1000 A (690 V) 1000 A
Rated Operational Power AC-23A (Pe)
(220 ... 240 V) 315 kW (400 V) 560 kW (415 V) 560 kW (500 V) 710 kW (690 V) 1000 kW
Rated Operational Voltage
Main Circuit 690 V AC
Rated Short-time Withstand Current Low Voltage (Icw)
for 1 s 40 kiloampere rms
Standards
IEC 60947-3
Switches Operating Mechanism
04 (Left Side)
Terminal Type
Lug terminals
Terminal Width
50 mm
Tightening Torque
50 ... 75 N·m
Tightening Torque
50 ... 75 N·m
Object Classification Code
Q
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
4. Large Equipment (Any External Dimension More Than 50 cm)
Manufacturer ID
1SCA105472R1001

Specifications may be subject to change without notice