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ABBFuse protector
Product Model

OS400J02

Manufacturer

ABB

Category

Fuse protector

Product ID

74975

In Stock
Last updated: 2025/4/19
View Specifications
ABB OS400J02

Selling Points

  • 1400 A for robust motor protection.
  • 2Extremely compact size for space-efficient installations.
  • 3Fully isolated in the OFF position, reducing electric shock risk.
  • 4Front-operated, padlockable handles for secure operation.
  • 5Test-proven type 2 coordination tables for reliable fault clearance.
Product Details
OS400J02
ABB

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

ParameterValueParameterValue
Pollution Degree
3
Product Net Width
191 mm
Product Net Height
230 mm
Product Net Depth / Length
176 mm
Product Net Weight
5.6 kg
Conventional Free-air Thermal Current (Ith)
Θ = 40 °C 400 A
Conventional Thermal Current (Ithe)
Fully Enclosed 400 A
Fuse Size
400 A
Fuse System
Class J
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 30 W
Rated Conditional Short-Circuit Current (Inc)
(690 V) 80 kA
Rated Current (In)
Main Circuit 400 A
Rated Impulse Withstand Voltage (Uimp)
12 kV
Rated Insulation Voltage (Ui)
1000 V
Rated Operational Current AC-21A (Ie)
(500 V) 400 A (690 V) 400 A
Rated Operational Current AC-22A (Ie)
(380 ... 415 V) 400 A (500 V) 400 A (690 V) 400 A
Rated Operational Current AC-23A (Ie)
(380 ... 415 V) 400 A (500 V) 400 A (690 V) 400 A
Rated Operational Power AC-23A (Pe)
(220 ... 240 V) 132 kW (400 V) 220 kW (415 V) 230 kW (500 V) 280 kW (690 V) 400 kW
Rated Operational Voltage
Main Circuit 600 V AC
Rated Short-time Withstand Current Low Voltage (Icw)
for 1 s 14 kiloampere rms
Standards
UL98 IEC 60947-3
Switches Operating Mechanism
02 (Left Side)
Terminal Type
Lug terminals
Terminal Width
25 mm
Tightening Torque
30 … 44 N·m
Ampere Rating
400 A
Horsepower Rating UL/CSA
(acc. to UL 240 V) 125 Hp (acc. to UL 480 V) 250 Hp (acc. to UL 600 V) 350 Hp
Tightening Torque
30 … 44 N·m
Tightening Torque UL/CSA
Wire-Clamp 375 in·lb Cable Lug 240 in·lb
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
5. Small Equipment (No External Dimension More Than 50 cm)
Manufacturer ID
1SCA107592R1001

Specifications may be subject to change without notice