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1SCA162535R1001 ABB OT125G3-4DSN2 Switch-disconnector OT Plus 125 A, size G3, 4-pole, 4th pole right
ABB OT125G3-4DSN2 125A 4-pole door-mounted switch disconnector with right-hand neutral pole for industrial electrical isolation.
£89.93
Why Choose the ABB OT125G3-4DSN2 Switch Disconnector?
The ABB OT125G3-4DSN2 (SKU: 1SCA162535R1001) is a premium 4-pole door-mounted switch disconnector designed to provide safe and reliable electrical isolation for industrial machinery, commercial switchboards and low-voltage power distribution systems. As part of the trusted ABB OT Plus switch disconnector range, it combines dependable switching performance, compact dimensions and long service life for demanding industrial environments.
Designed specifically for door-mounted installations, the OT125G3-4DSN2 features integrated screw terminals with IP20 protected terminal clamps from the front for improved installer safety. It is intended for use with ABB external operating handles and shafts (sold separately), making it ideal for enclosed control panels and switchgear assemblies. The N2 configuration places the fourth neutral pole on the right-hand side for applications requiring neutral isolation.
With a rated permanent current of 125 A, a 4-pole configuration and a maximum rated operational voltage of 800 V AC, the OT125G3-4DSN2 is ideal for isolating three-phase systems with neutral in industrial automation, motor control centres and commercial power distribution applications.
Key Advantages
- Heavy-duty 4-pole door-mounted switch disconnector.
- 125 A rated permanent current for demanding industrial applications.
- Right-hand fourth neutral pole (N2) for complete circuit isolation.
- Door-mounted design keeps operating controls safely outside the enclosure.
- Protected IP20 terminal clamps improve installation safety.
- Reliable ABB OT Plus construction ensures long service life.
Key Features
- ABB OT Plus switch disconnector series.
- Model: OT125G3-4DSN2.
- Order code: 1SCA162535R1001.
- 125 A rated permanent current (Iu).
- 4-pole configuration (N2 right-hand neutral).
- Door-mounted installation.
- Integrated 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 OT125G3-4DSN2 provides a safe and visible means of isolating electrical circuits before maintenance and servicing. Its door-mounted design enables operators to disconnect power externally without opening the enclosure, improving personnel safety while reducing maintenance downtime.
Part of ABB's proven OT Plus family, this switch disconnector combines dependable switching performance, robust construction and straightforward installation, making it an excellent choice for electrical contractors, OEM manufacturers and panel builders working on industrial and commercial installations.
Typical Applications
- Industrial control panels.
- Motor control centres.
- Low-voltage power distribution systems.
- OEM machinery.
- Commercial switchboards.
- Industrial automation systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Voltage | 800 V | |
|---|---|---|
| Device Type | Switch Disconnector | |
| Poles | 4-pole | |
| Mounting Type | Door / front mounting | |
| Product Series | ABB OT Plus | |
| Power | 55 kW | |
| Current | 125 A | |
| Phase | Three Phase | |
| Manufacturer | ABB | |
| Series | OT Plus | |
| Model | OT125G3-4DSN2 | |
| Order code | 1SCA162535R1001 | |
| Product type | Door-mounted switch disconnector | |
| Rated permanent current (Iu) | 125 A | |
| Number of poles | 4 | |
| Neutral position | N2 (4th pole right) | |
| Maximum rated operating voltage | 800 V AC | |
| Rated operating power (AC-23A, 400 V) | 55 kW | |
| Conditioned short-circuit current (Iq) | 50 kA | |
| Rated short-time withstand current (Icw) | 2.5 kA | |
| Mounting type | Door mounted | |
| Connection type | Screw terminals | |
| Terminal protection | IP20 (front) | |
| Dimensions (H × W × D) | 102.5 × 95.5 × 70 mm | |
| GTIN | 6417019925684 | |
| HS Code | 85365080 | |
| Country of Manufacture | Finland |
Frequently Asked Questions
What is the ABB OT125G3-4DSN2 used for?
The ABB OT125G3-4DSN2 is designed to safely isolate four-pole electrical circuits in industrial machinery, switchboards and power distribution systems.
What is the rated current of the OT125G3-4DSN2?
The switch disconnector has a rated permanent current of 125 A.
What does N2 mean on this model?
N2 indicates the switch features a right-hand fourth neutral pole, allowing all three phases and the neutral conductor to be isolated together.
Is this a door-mounted switch disconnector?
Yes. The OT125G3-4DSN2 is specifically designed for door-mounted installations and is intended for use with ABB external operating handles and shafts.
Where is the OT125G3-4DSN2 typically installed?
It is commonly installed in industrial control panels, motor control centres, OEM machinery 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.
