ABB OT25G1-4DSN2 25 A four-pole door-mounted switch disconnector with screw terminals for safe isolation of low-voltage electrical systems.
£48.29
The ABB 1SCA163441R1001, also known as the OT25G1-4DSN2, is a high-performance 25 A four-pole switch disconnector designed for safe isolation of low-voltage electrical circuits in industrial, commercial and OEM applications. As part of the trusted ABB OT Plus switch disconnector range, it combines compact dimensions with dependable switching performance, making it ideal for electrical distribution panels and machinery.
Designed for door-mounted operation, the OT25G1-4DSN2 features integrated screw terminals and a front-operated switching mechanism. It is intended for use with a compatible external operating handle and shaft, allowing operators to safely isolate equipment without opening the electrical enclosure.
With a rated current of 25 A, a four-pole configuration and an N2 neutral arrangement, this switch disconnector is suitable for isolating three-phase electrical systems where the neutral conductor must also be disconnected. Its compact G1 frame simplifies installation while delivering long-term operational reliability.
The ABB OT25G1-4DSN2 provides a dependable means of isolating electrical circuits for maintenance and servicing. Its four-pole switching arrangement disconnects all live conductors simultaneously, improving safety and supporting compliance with modern electrical installation practices.
Its compact design, robust switching mechanism and flexible installation make it a popular choice for panel builders, machinery manufacturers and electrical contractors requiring reliable isolation equipment for demanding industrial environments.
| Current | 25 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | OT Plus |
| Product ID | 1SCA163441R1001 |
| Model | OT25G1-4DSN2 |
| Product type | Manual switch disconnector |
| Rated current | 25 A |
| Number of poles | 4 |
| Neutral configuration | N2 |
| Rated operational voltage | Up to 800 V AC |
| Rated motor power (AC-23A, 400 V) | 11 kW |
| Terminal type | Screw terminals |
| Operation | Front operated, door mounted |
| Mounting type | Door mounting |
| Frame size | G1 |
| Operating handle | External handle and shaft required |
| 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 OT25G1-4DSN2 features a four-pole configuration for isolating three phases and the neutral conductor.
No. This version is intended for use with a compatible external operating handle and shaft, which are supplied separately.
It is commonly installed in industrial control panels, switchboards and electrical distribution systems requiring safe manual isolation.
ABB OT Plus switch disconnectors are trusted by panel builders, electrical contractors and OEM manufacturers worldwide for reliable isolation, compact installation and dependable long-term performance.
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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...