OS125GB04BBN2P

Product ID:75152
Updated: 2026/4/3
ABB OS125GB04BBN2P

Key Features

  • 1Protect motors with a 125A rated switch fuse for demanding applications. 2、Maintain reliability using self-cleaning contacts that eliminate routine maintenance. 3、Simplify installation via a modular design for 2-, 3-, or 4-pole setups. 4、Enhance safety with interlocking covers that prevent access when energized. 5、Reduce installation time using adjustable shafts and snap-on accessories.
Product Details
OS125GB04BBN2P
ABB

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Pollution Degree
3
Product Net Width
137 mm
Product Net Height
182 mm
Product Net Depth / Length
118 mm
Product Net Weight
2.4 kg
Conventional Free-air Thermal Current (Ith)
Θ = 40 °C 125 A
Conventional Thermal Current (Ithe)
Fully Enclosed 125 A
Fourth Pole Position
Right Side
Fourth Pole Type
Switched - With Solid Link
Fuse Size
A2-A4
Fuse System
British Standard
Handle Type
Handle and shaft included
Mounting Type
Base mounting
Number of Poles
4
Operating Mode
Front Operated
Pollution Degree
3
Position of Line Terminals
Back In - Back Out
Power Loss
at Rated Operating Conditions per Pole 4 W
Rated Conditional Short-Circuit Current (Inc)
(690 V) 80 kA
Rated Current (In)
Main Circuit 125 A
Rated Impulse Withstand Voltage (Uimp)
8 kV
Rated Insulation Voltage (Ui)
1000 V
Rated Operational Current AC-21A (Ie)
(500 V) 125 A (690 V) 125 A
Rated Operational Current AC-22A (Ie)
(500 V) 125 A (690 V) 125 A
Rated Operational Current AC-23A (Ie)
(500 V) 125 A (690 V) 125 A
Rated Operational Power AC-23A (Pe)
(220 ... 240 V) 37 kW (400 V) 55 kW (415 V) 55 kW (500 V) 75 kW (690 V) 110 kW
Rated Operational Voltage
Main Circuit 690 V AC
Rated Short-time Withstand Current Low Voltage (Icw)
for 1 s 5 kiloampere rms
Standards
IEC 60947-3
Switches Operating Mechanism
04 (Left Side)
Terminal Type
Lug terminals
Terminal Width
20 mm
Tightening Torque
15 … 22 N·m
Tightening Torque
15 … 22 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
5. Small Equipment (No External Dimension More Than 50 cm)
Manufacturer ID
1SCA120785R1001

Specifications may be subject to change without notice