ABB OT125G3-4BSN2 125A 4-pole switch disconnector with right-hand neutral pole, base plate and DIN rail mounting for industrial electrical isolation.
£1,408.10
The ABB OT125G3-4BSN2 (SKU: 1SCA162526R1001) is a premium 4-pole switch disconnector designed to provide safe and dependable electrical isolation for industrial machinery, commercial electrical installations and low-voltage power distribution systems. As part of the trusted ABB OT Plus switch disconnector series, it delivers outstanding switching performance, flexible installation and long-term reliability for demanding industrial applications.
Designed for base plate or DIN rail mounting, the OT125G3-4BSN2 features integrated screw terminals with front IP20 protected terminal clamps, enabling safe, straightforward installation. It is supplied with a direct-mounted, padlockable operating handle and supports the addition of an external operating shaft for installations requiring remote operation.
With a rated operational current of 125 A, a 4-pole configuration and a 55 kW AC-23A switching capacity at 400 V AC, the OT125G3-4BSN2 is ideal for isolating three-phase electrical systems with a right-hand neutral pole in industrial automation, motor control centres and power distribution applications.
Switch disconnectors provide a safe and visible means of isolating electrical circuits before maintenance, servicing and equipment replacement. The ABB OT125G3-4BSN2 enables reliable isolation of all three phases together with the neutral conductor, helping improve electrical safety while reducing downtime across industrial installations.
As part of ABB's proven OT Plus range, the OT125G3-4BSN2 combines durable construction, dependable switching performance and flexible installation options, making it an ideal choice for panel builders, OEM manufacturers and electrical contractors.
| Current | 125 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | OT Plus |
| Model | OT125G3-4BSN2 |
| Order code | 1SCA162526R1001 |
| Product type | Switch disconnector |
| Rated operational current | 125 A |
| Number of poles | 4 |
| Neutral position | N2 (4th pole right) |
| Switching power at 400 V AC | 55 kW |
| Maximum rated operating voltage | 800 V AC |
| Connection type | Screw terminals |
| Mounting type | Base plate / DIN rail |
| Protection rating | IP20 terminal protection (front) |
| Frame size | G3 |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
The ABB OT125G3-4BSN2 is used to safely isolate four-pole electrical circuits in industrial machinery, switchboards and power distribution systems.
The switch has a rated operational current of 125 A.
N2 indicates the switch has a right-hand fourth neutral pole, allowing all three phases and the neutral conductor to be isolated together.
Yes. The OT125G3-4BSN2 is supplied with a direct-mounted, padlockable operating handle and supports external shaft operation where required.
It is commonly installed in industrial control panels, switchboards, OEM machinery and commercial power distribution systems.
ABB OT Plus switch disconnectors are trusted by electrical engineers, panel builders and OEM manufacturers for dependable circuit isolation, reliable switching performance and long-term durability across demanding industrial environments.
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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...