Product Model

OS125GD21LR

In Stock
Last updated: 2025/4/18
ABB OS125GD21LR

Selling Points

  • 1High Performance in Demanding Applications: Designed to handle extreme conditions with world-class reliability.
  • 2Self-Cleaning and Maintenance-Free Contacts: Ensures a long, reliable electrical life without needing maintenance.
  • 3Modular Design for Easy Installation: Enables 2-, 3-, and 4-pole installations with adjustable shafts and snap-on auxiliary contacts.
  • 4Enhanced Safety Features: Interlocking fuse covers prevent opening while the switch is in the "ON" position, reducing the risk of electric shock.
  • 5Time-Saving Installation Accessories: Adjustable shafts and mounting feet reduce installation time by up to 50%.
Product Details
OS125GD21LR
ABB

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

ParameterValueParameterValue
Pollution Degree
3
Product Net Width
242 mm
Product Net Height
122 mm
Product Net Depth / Length
156 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
Fuse Size
NH000 NH00
Fuse System
DIN
Handle Type
Handle and shaft not included
Mounting Type
Base mounting
Number of Poles
3
Operating Mode
Front Operated
Pollution Degree
3
Position of Line Terminals
Left In - Right Out
Power Loss
at Rated Operating Conditions per Pole 12 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
21 (Between the Poles)
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
1SCA120319R1001

Specifications may be subject to change without notice