The OT125G3-4DSN2 is a 4-pole front-operated door-mounted switch disconnector from ABB, featuring inbuilt screw terminals and advanced safety features for reliable operation.
Product ModelOT125G3-4DSN2
Material Number1SCA162535R1001
Product ID90218
Stock on Request
Last updated: 8/29/2026
Key Features
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1. High PerformanceThe OT125G3-4DSN2 is designed to provide high operational reliability, ensuring consistent performance in demanding environments.
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2. Advanced Safety FeaturesEquipped with comprehensive inbuilt safety features, this switch disconnector ensures safe operation and emergency manual operation capabilities.
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3. Compact DesignIts compact design makes it ideal for space-constrained applications, providing a reliable solution without compromising on functionality.
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4. Ease of OperationFront-operated design simplifies the operation process, allowing for quick and efficient switching without the need for complex controls.
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Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Degree of Protection
Front IP20
Environmental Information
1SCC301334D0201
Pollution Degree
3
Product Net Width
95.5 mm
Product Net Height
102.5 mm
Product Net Depth / Length
70 mm
5. Durability and EnduranceBuilt to withstand 20,000 operation cycles, this switch disconnector offers exceptional mechanical endurance, ensuring long-term reliability in various applications.
Product Net Weight
0.534 kg
Connecting Capacity Main Circuit
Flexible with Ferrule 1/2x Cu 2.5â¦4 mm² Solid 1/2x Cu 2.5â¦6 mm² Flexible 1x Cu 2.5â¦70 mm² Flexible 2x Cu 2.5â¦25 mm² Stranded 1x Cu 2.5â¦70 mm² Stranded 2x Cu 2.5â¦25 mm²
Conventional Free-air Thermal Current (Ith)
125 A
Conventional Thermal Current (Ithe)
125 A
Degree of Protection
Front IP20
Fourth Pole Position
Right Side
Fourth Pole Type
Switched - Simultaneous Function Switched - Late-break and Early-make
Handle Type
Handle not included
Maximum Mounted Auxiliary Contacts
4 NO, 4 NC
Mechanical Durability
Nr. Operations 100000
Mounting Type
Door mounting
Number of Poles
4P
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 4.6 W
Rated Conditional Short-Circuit Current (Inc)
(125 A fuse, 415 V) 50 kA (80 A fuse, 690 V) 50 kA
Rated Impulse Withstand Voltage (Uimp)
8 kV
Rated Insulation Voltage (Ui)
acc. to IEC 60947-1 800 V
Rated Operational Current AC-21A (Ie)
(415 V) 125 A (690 V) 125 A (800 V AC) 80 A
Rated Operational Current AC-22A (Ie)
(415 V) 125 A (690 V) 125 A (800 V) 63 A
Rated Operational Current AC-23A (Ie)
(415 V) 125 A (690 V) 63 A
Rated Operational Power AC-23A (Pe)
(415 V) 55 kW (690 V) 55 kW
Rated Operational Voltage
Main Circuit 800 V
Rated Short-Circuit Making Capacity (Icm)
(690 V) 4.8 kA
Rated Short-time Withstand Current Low Voltage (Icw)
for 1 s 2.5 kA for 0.2 s 3.3 kA
Recommended Screw Driver
Main Circuit Hexagon 4
Special Functions
No
Standards
IEC60947-3
Switches Operating Mechanism
Mechanism on Top of the Switch
Terminal Type
Screw Terminals
Tightening Torque
acc. IEC 60947-1 6 N·m
Wire Stripping Length
Main Circuit 16-18 mm Main Circuit 0.63-0.71 in
Wire Stripping Length
Main Circuit 16-18 mm Main Circuit 0.63-0.71 in
Recommended Screw Driver
Main Circuit Hexagon 4
Tightening Torque
acc. IEC 60947-1 6 N·m
Tightening Torque UL/CSA
UL 53 lbf·in
Object Classification Code
Q
ETIM 8
EC000216 - Switch disconnector
ETIM 9
EC000216 - Switch disconnector (low voltage)
UNSPSC
39122233
IDEA Granular Category Code (IGCC)
5290 >> Disconnect switch
eClass
V11.1 : 27371403
WEEE Category
5. Small Equipment (No External Dimension More Than 50 cm)
Manufacturer ID
1SCA162535R1001
`"OT125G3-4DSN2 | ABB SmartLinks Switch Disconnector - High Performance and Safety"` | INDSLT
