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1SCA022753R7200 ABB 400A 4-Pole BS88 B1-B4 Switch Fuse
ABB OS400B22N2P is a 400 A 4-pole BS88 B1-B4 switch fuse with a non-fused switched neutral, mechanism between the poles and handle and shaft included for low-voltage switching, isolation and fuse protection.
£799.58
Why Choose the ABB OS400B22N2P Switch Fuse?
The ABB OS400B22N2P is a heavy-duty 400 A 4-pole BS88 switch fuse designed for reliable switching, isolation and fuse protection in low-voltage electrical distribution systems. As part of the ABB OS fuse switch range, it combines manual circuit isolation with British Standard fuse protection for demanding industrial and commercial power applications.
This front-operated switch fuse features its operating mechanism between the poles and uses B1–B4 British Standard fuse sizes. The four-pole configuration incorporates a non-fused switched neutral on the right side (N2), providing coordinated switching of the three phase conductors and neutral for applications requiring four-pole isolation.
With a rated current of 400 A and an operational voltage capability up to 690 V AC, the OS400B22N2P is engineered for substantial low-voltage loads. The unit is supplied with a handle and shaft included, supporting straightforward integration into industrial switchboards and electrical distribution assemblies.
Key Advantages
- Heavy-duty 400 A switch fuse for industrial power distribution.
- 4-pole configuration with switched neutral for multi-pole circuit isolation.
- Combined switching, isolation and fuse protection in one assembly.
- Designed for BS88 / British Standard B1–B4 fuse sizes.
- Mechanism positioned between the poles for the OS400B22N2P configuration.
- Handle and shaft included for convenient switchboard installation.
Key Features
- ABB OS fuse switch range.
- 400 A rated current.
- 4-pole switch fuse configuration.
- BS88 / British Standard fuse system.
- B1–B4 fuse sizes.
- Up to 690 V AC operational voltage.
- Non-fused switched neutral on the right side (N2).
- Front-operated mechanism between the poles.
- Handle and shaft included.
- Designed for low-voltage switchboard and distribution applications.
Reliable High-Current Switching and Fuse Protection
Switch fuses combine manual circuit isolation with fuse-based overcurrent protection, allowing electrical circuits to be disconnected for operation or maintenance while correctly selected fuse links provide protection against damaging overcurrent and short-circuit conditions. This makes them particularly suitable for incoming supplies, feeders and other high-current distribution circuits.
The ABB OS400B22N2P provides a 400 A four-pole solution using B1–B4 British Standard fuse links. Its N2 arrangement provides a non-fused switched neutral on the right side, while the mechanism-between-poles configuration and included operating handle and shaft support practical integration into industrial low-voltage switchboards.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and sub-distribution switchboards.
- Four-pole feeder isolation applications.
- Industrial machinery and production equipment.
- Fuse-protected three-phase and neutral circuits.
- Commercial and infrastructure electrical distribution.
Technical Specifications
| Series | OS Fuse Switches |
|---|---|
| ABB order code | 1SCA022753R7200 |
| Product type | Switch fuse |
| ABB product group | 311021-OS Fuse Switches |
| Rated current | 400 A |
| Number of poles | 4 |
| Fuse standard | BS88 / British Standard |
| Fuse size | B1–B4 |
| Operational voltage | Up to 690 V AC |
| Operating mode | Front operated |
| Operating mechanism | Between the poles |
| Neutral configuration | N2 — non-fused switched neutral on right side |
| Handle and shaft | Included |
| Product net width | 318 mm |
| Product net height | 176 mm |
| Product net depth | 230 mm |
| Product net weight | 9.1 kg |
Frequently Asked Questions
What is the ABB OS400B22N2P used for?
The ABB OS400B22N2P is used for high-current switching, circuit isolation and fuse protection in industrial and commercial low-voltage electrical distribution systems.
What is the rated current of the ABB OS400B22N2P?
The OS400B22N2P has a rated current of 400 A.
How many poles does the OS400B22N2P have?
The ABB OS400B22N2P is a 4-pole switch fuse with an N2 non-fused switched neutral on the right side.
What fuse sizes does the OS400B22N2P use?
The OS400B22N2P is designed for BS88 / British Standard B1–B4 fuse sizes.
What does N2 mean on the OS400B22N2P?
The N2 designation identifies a non-fused switched neutral positioned on the right side of the switch fuse.
Where is the operating mechanism positioned?
The OS400B22N2P is front operated with the operating mechanism positioned between the poles.
Are the handle and shaft included with the ABB OS400B22N2P?
Yes. The OS400B22N2P is supplied with a handle and shaft included for integration into a suitable switchboard or electrical enclosure.
Trusted by Electrical Professionals Worldwide
ABB OS switch fuses are designed for dependable switching, isolation and fuse protection in low-voltage power distribution systems, supporting panel builders, OEMs and electrical professionals in demanding industrial and commercial installations.
