ABB OT25G1-4MSN2 25 A four-pole OT Plus switch disconnector with protected screw terminals, direct-mounted padlockable handle and DIN-rail or base mounting.
£353.00
The ABB 1SCA163446R1001, also known as the OT25G1-4MSN2, is a robust 25 A four-pole switch disconnector designed for safe isolation of low-voltage electrical circuits in industrial, commercial and OEM applications. Part of the trusted ABB OT Plus switch disconnector range, it combines compact dimensions, dependable switching performance and straightforward installation for modern electrical systems.
This modular switch disconnector features a front-operated mechanism with protected screw terminals and is supplied with a direct-mounted, padlockable operating handle. Designed for DIN-rail and base mounting, it provides a safe and reliable method of disconnecting power during maintenance and servicing while helping to minimise downtime.
With a rated operational current of 25 A, a four-pole configuration and an N2 neutral arrangement, the OT25G1-4MSN2 is ideal for isolating three-phase systems requiring neutral switching. Its compact G1 frame makes it well suited to space-conscious control panels and distribution boards.
The ABB OT25G1-4MSN2 provides safe manual isolation of electrical circuits during maintenance, inspection and servicing. Its four-pole switching mechanism disconnects all live conductors simultaneously, helping improve operator safety and protecting connected equipment from accidental energisation.
Engineered for demanding industrial environments, the OT Plus range offers long mechanical life, dependable switching performance and flexible installation options, making it a preferred choice for panel builders, machine manufacturers and electrical contractors.
| Current | 25 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | OT Plus |
| Product ID | 1SCA163446R1001 |
| Model | OT25G1-4MSN2 |
| Product type | Manual switch disconnector |
| Rated current | 25 A |
| Number of poles | 4 |
| Neutral configuration | N2 |
| Maximum operational voltage | 800 V AC |
| Rated motor power (AC-23A, 400 V) | 11 kW |
| Terminal type | Protected screw terminals |
| Operation | Front operated |
| Mounting type | DIN-rail or base mounting |
| Frame size | G1 |
| Handle | Direct-mounted, padlockable |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
It is used to safely isolate low-voltage electrical circuits in industrial, commercial and OEM electrical installations.
The switch disconnector has a rated operational current of 25 A.
Yes. The OT25G1-4MSN2 is supplied with a direct-mounted padlockable operating handle.
Yes. It is suitable for both DIN-rail mounting and base mounting.
The OT25G1-4MSN2 features a four-pole configuration for switching three phases and the neutral conductor together.
ABB OT Plus switch disconnectors are trusted by electrical contractors, panel builders and OEM manufacturers worldwide for dependable isolation, compact installation and long-term reliability in demanding industrial applications.
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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...