Why Choose the ABB OT125G3-3DS Switch Disconnector?
The ABB OT125G3-3DS (SKU: 1SCA162531R1001) is a high-performance 3-pole door-mounted switch disconnector designed for safe and reliable electrical isolation in industrial machinery, commercial installations and low-voltage power distribution systems. As part of the proven ABB OT Plus range, it offers dependable switching performance, compact dimensions and robust construction for demanding applications.
The OT125G3-3DS is supplied with protected IP20 front terminal clamps and screw terminals, making installation straightforward while improving operator safety. Designed for door-mounted operation, it is compatible with ABB external operating handles and shafts, making it ideal for enclosed switchboards and control panels.
With a 125 A thermal current, 3-pole configuration and support for AC-22A and AC-23A switching duties up to 690 V AC, the OT125G3-3DS provides dependable circuit isolation for power distribution, motor loads and industrial automation systems.
125 A rated thermal current for demanding industrial applications.
Suitable for AC-22A and AC-23A switching duties.
Door-mounted design for enclosed switchboards.
Protected IP20 front terminal clamps improve installation safety.
Reliable ABB OT Plus construction ensures long service life.
Key Features
ABB OT Plus switch disconnector series.
Model: OT125G3-3DS.
Order code: 1SCA162531R1001.
125 A thermal current (Ith).
3-pole configuration.
Door-mounted operation.
Screw terminal connections.
Compatible with ABB external operating handles and shafts.
Protected IP20 front terminal clamps.
Compact G3 frame.
Reliable Electrical Isolation for Industrial Installations
The ABB OT125G3-3DS provides a visible and dependable means of isolating electrical circuits before maintenance and servicing. Its compact design, robust switching mechanism and door-mounted operation make it ideal for industrial control panels, machinery and low-voltage switchboards.
As part of ABB's OT Plus range, the OT125G3-3DS delivers long-term reliability, straightforward installation and excellent operational safety for electrical contractors, OEMs and panel builders.
Typical Applications
Industrial control panels.
Motor control centres.
Low-voltage power distribution.
OEM machinery.
Commercial switchboards.
Industrial automation systems.
Technical Specifications
Current
125 A
Phase
Three Phase
Manufacturer
ABB
Series
OT Plus
Model
OT125G3-3DS
Order code
1SCA162531R1001
Product type
Door-mounted switch disconnector
Rated thermal current (Ith)
125 A
Rated operational current
125 A (AC-22A)
Maximum motor power (AC-23A, 400/415 V)
55 kW
Rated operational voltage
Up to 690 V AC
Number of poles
3
Frame size
G3
Connection type
Screw terminals
Terminal protection
IP20 (front)
GTIN
6417019925646
HS Code
85365080
Country of Manufacture
Finland
Frequently Asked Questions
What is the ABB OT125G3-3DS used for?
The ABB OT125G3-3DS is used to safely isolate three-phase electrical circuits in industrial machinery, switchboards and power distribution systems.
What is the rated current of the OT125G3-3DS?
The switch disconnector has a rated thermal current of 125 A and is suitable for AC-22A and AC-23A applications.
Is this a door-mounted switch disconnector?
Yes. The OT125G3-3DS is designed for door-mounted installations and is compatible with ABB external operating handles and shafts.
How many poles does the switch have?
The OT125G3-3DS features a 3-pole configuration for isolating three-phase electrical supplies.
Where is the OT125G3-3DS typically installed?
It is commonly installed in industrial control panels, switchboards, OEM equipment and commercial power distribution systems.
Trusted by Electrical Professionals Worldwide
ABB OT Plus switch disconnectors are trusted by electrical engineers, OEM manufacturers and panel builders for dependable circuit isolation, robust construction and reliable long-term performance across demanding industrial environments.
Current
125 A
Phase
Three Phase
Manufacturer
ABB
Series
OT Plus
Model
OT125G3-3DS
Order code
1SCA162531R1001
Product type
Door-mounted switch disconnector
Rated thermal current (Ith)
125 A
Rated operational current
125 A (AC-22A)
Maximum motor power (AC-23A, 400/415 V)
55 kW
Rated operational voltage
Up to 690 V AC
Number of poles
3
Frame size
G3
Connection type
Screw terminals
Terminal protection
IP20 (front)
GTIN
6417019925646
HS Code
85365080
Country of Manufacture
Finland
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
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Customers supported
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● frequently asked questions
Common questions about our products and support
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...