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1SCA022871R0640 ABB 400A 4-Pole Side-Operated Switch Fuse
ABB OS400BS40N2K is a 400 A 4-pole side-operated BS-type switch fuse with a right-side mechanism, direct-mounted handle and N2 non-fused switched neutral for low-voltage switching, isolation and fuse protection.
£944.83
Why Choose the ABB OS400BS40N2K Switch Fuse?
The ABB OS400BS40N2K is a heavy-duty 400 A 4-pole side-operated 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 provides a robust solution for demanding industrial and commercial power distribution applications.
This configuration features a side-operated mechanism positioned on the right and is supplied with a direct-mounted handle. The four-pole arrangement incorporates an N2 non-fused switched neutral, making the OS400BS40N2K suitable for installations where the phase conductors and neutral require coordinated switching and isolation.
With a rated current of 400 A, the OS400BS40N2K is designed for BS-type B1–B4 fuse sizes. Its side-operated construction and direct handle arrangement provide a practical solution for switchboards and electrical assemblies where conventional front operation is unsuitable or where the installation layout requires operation from the side.
Key Advantages
- Heavy-duty 400 A switch fuse for industrial power distribution.
- 4-pole configuration for multi-pole circuit switching and isolation.
- Combined switching, isolation and fuse protection in one assembly.
- Side-operated mechanism on the right for specialised switchboard layouts.
- Direct-mounted handle for convenient local operation.
- Designed for BS-type B1–B4 fuse sizes.
Key Features
- ABB OS fuse switch range.
- 400 A rated current.
- 4-pole switch fuse configuration.
- Side-operated design.
- Right-side operating mechanism.
- Direct-mounted handle.
- BS-type B1–B4 fuse compatibility.
- N2 non-fused switched neutral.
- Base-mounted construction for electrical distribution assemblies.
Reliable Side-Operated Switching and Fuse Protection
Switch fuses combine manual circuit isolation with fuse-based overcurrent protection, allowing electrical circuits to be disconnected for operation and maintenance while correctly selected fuse links provide protection against damaging overcurrent and short-circuit conditions. This combination makes switch fuses well suited to feeders, distribution circuits and industrial power systems.
The ABB OS400BS40N2K provides a 400 A four-pole solution specifically configured for side operation. Its right-side mechanism, direct-mounted handle and N2 switched-neutral arrangement support integration into switchboards where accessibility, panel geometry or equipment layout makes side operation the preferred configuration.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and sub-distribution switchboards.
- Four-pole feeder isolation applications.
- Industrial machinery and production equipment.
- Switchboards requiring right-side operation.
- OEM switchgear and power distribution assemblies.
Technical Specifications
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| Mounting Type | Base / panel | |
|---|---|---|
| Series | OS Fuse Switches | |
| ABB order code | 1SCA022871R0640 | |
| Product type | Side-operated switch fuse | |
| ABB product group | 311021-OS Fuse Switches | |
| Rated current | 400 A | |
| Number of poles | 4 | |
| Fuse system | BS type | |
| Mechanical fuse size | B1–B4 | |
| Operating method | Side operated | |
| Mechanism position | Right side | |
| Handle type | Direct-mounted handle | |
| Neutral configuration | N2 non-fused switched neutral | |
| Mounting type | Base mounting |
Frequently Asked Questions
What is the ABB OS400BS40N2K used for?
The ABB OS400BS40N2K 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 OS400BS40N2K?
The OS400BS40N2K has a rated current of 400 A.
How many poles does the OS400BS40N2K have?
The ABB OS400BS40N2K is a 4-pole switch fuse incorporating an N2 non-fused switched neutral.
How is the OS400BS40N2K operated?
The OS400BS40N2K is a side-operated switch fuse with its operating mechanism positioned on the right side.
What type of handle does the OS400BS40N2K use?
The OS400BS40N2K is configured with a direct-mounted handle for local manual operation.
What fuse sizes are suitable for the OS400BS40N2K?
The OS400BS40N2K is designed for BS-type B1–B4 mechanical fuse sizes.
What does N2 mean on the OS400BS40N2K?
The N2 designation identifies the switch fuse configuration with a non-fused switched neutral.
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.
