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1SCA022870R9040 ABB 250 A 4-Pole Side-Operated Switch Fuse
ABB OS250BS40N2K is a 250 A 4-pole British Standard side-operated switch fuse with an N2 non-fused switched neutral, B1–B3 fuse compatibility and a right-side direct-mounted handle.
£627.50
Why Choose the ABB OS250BS40N2K Side-Operated Switch Fuse?
The ABB OS250BS40N2K is a robust 250 A 4-pole side-operated switch fuse designed for dependable switching, isolation and fuse-based protection in industrial low-voltage electrical systems. Part of the ABB OS fuse switch series, it provides a purpose-built solution for switchboards, distribution assemblies and machinery requiring side operation.
This exact OS250BS40N2K configuration uses a right-side direct-mounted operating handle and incorporates an N2 non-fused switched neutral on the right side. Its four-pole construction and side-operated arrangement make it particularly suitable for enclosure and switchboard layouts where direct operation from the side is preferred.
The OS250BS40N2K is designed for British Standard B1–B3 fuse sizes and is supplied with an OXP6X42-T0 shaft, OHB65D6 direct-mounted handle and M10×30 terminal bolts. The handle provides Test-ON-OFF positions and can be padlocked in the OFF position, supporting safe and practical operation in professional electrical installations.
Key Advantages
- 250 A rated current for demanding industrial low-voltage applications.
- 4-pole configuration with an N2 non-fused switched neutral.
- Side-operated design for specialised enclosure and switchboard layouts.
- Right-side direct-mounted handle for convenient local operation.
- Designed for British Standard B1–B3 fuse sizes.
- Supplied with handle, shaft and terminal bolt set as standard.
Key Features
- ABB OS fuse switch series.
- OS250 product platform.
- 250 A rated operational current.
- 4-pole switch fuse configuration.
- British Standard B1–B3 fuse compatibility.
- Side-operated construction.
- Right-side direct-mounted handle.
- N2 non-fused switched neutral on the right side.
- Black Test-ON-OFF handle, padlockable in the OFF position.
- Supplied with OXP6X42-T0 shaft, OHB65D6 handle and M10×30 terminal bolts.
Reliable Side-Operated Switching and Fuse Protection
Switch fuses combine manual circuit switching and isolation with fuse-based overcurrent and short-circuit protection. Correctly selected fuse links protect the electrical circuit against fault conditions, while the switching mechanism provides a means of isolating downstream equipment for operation, servicing and maintenance.
The ABB OS250BS40N2K provides this functionality in a 250 A four-pole side-operated configuration. Its right-side direct-mounted handle, N2 non-fused switched neutral and British Standard B1–B3 fuse compatibility make it a practical solution for industrial switchboards and electrical enclosures requiring direct side operation.
Typical Applications
- Industrial low-voltage power distribution systems.
- Four-pole feeder and distribution circuits.
- Side-operated electrical switchboards and enclosures.
- Machinery isolation and fuse protection.
- Industrial control cabinets and distribution assemblies.
- OEM and panel-building applications requiring a direct-mounted side handle.
Technical Specifications
| Series | OS Fuse Switches |
|---|---|
| ABB order code | 1SCA022870R9040 |
| Product type | Side-operated switch fuse |
| Product platform | OS250 |
| Rated operational current | 250 A |
| Number of poles | 4 |
| Fuse system | British Standard |
| Fuse sizes | B1–B3 |
| Neutral configuration | N2 non-fused switched neutral |
| Neutral position | Right side |
| Operation | Side operated |
| Handle arrangement | Right-side direct mounted |
| Included shaft | OXP6X42-T0 |
| Included handle | OHB65D6 |
| Handle positions | Test-ON-OFF |
| Handle locking | Padlockable in OFF position |
| Included terminal bolts | M10×30 |
| Product net weight | 5.4 kg |
| ABB product group | 311021-OS Fuse Switches |
Frequently Asked Questions
What is the ABB OS250BS40N2K?
The OS250BS40N2K is a 250 A 4-pole side-operated switch fuse with a right-side direct-mounted handle, designed for industrial switching, isolation and fuse protection.
What is the rated current of the ABB OS250BS40N2K?
The ABB OS250BS40N2K has a rated operational current of 250 A.
How many poles does the OS250BS40N2K have?
The OS250BS40N2K has a 4-pole configuration incorporating an N2 non-fused switched neutral on the right side.
How is the ABB OS250BS40N2K operated?
The OS250BS40N2K is side operated and uses a right-side direct-mounted OHB65D6 handle.
What fuse sizes does the ABB OS250BS40N2K use?
The OS250BS40N2K is designed for British Standard B1–B3 fuse sizes.
What handle and shaft are included with the OS250BS40N2K?
The switch fuse is supplied with an OHB65D6 handle and OXP6X42-T0 shaft. The handle provides Test-ON-OFF positions and is padlockable in the OFF position.
What is the ABB order code for the OS250BS40N2K?
The ABB order code for this exact switch fuse is 1SCA022870R9040.
Trusted by Industrial Electrical Professionals Worldwide
ABB OS switch fuses are designed for professional low-voltage installations requiring dependable switching, isolation and fuse protection across industrial power distribution, machinery and electrical control systems.
