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ABB OS800B22N2 800A four pole switch fuse disconnector designed for industrial electrical switching, isolation and British Standard fuse protection applications.
£1,593.64
The ABB OS800B22N2 is a high-performance 800 A switch fuse disconnector designed for safe switching, isolation and fuse protection in high-current low-voltage electrical distribution systems. As part of the robust ABB OS800B switch fuse series, it provides dependable operation for industrial switchgear, machinery supplies and demanding power distribution applications.
This switch fuse features a front-operated mechanism, four-pole construction and a switched solid-link fourth pole. The OS800B22N2 is engineered for reliable manual operation, combining ABB quality construction with British Standard fuse compatibility for secure circuit protection and isolation.
With a rated current of 800 A, a 4-pole configuration, C1-C3 British Standard fuse compatibility and a 22 operating mechanism between the poles, the ABB OS800B22N2 is suitable for high-current electrical installations requiring dependable switching and fuse protection.
Switch fuse disconnectors such as the ABB OS800B22N2 provide combined switching and fuse protection for high-current electrical circuits. They allow operators to safely isolate equipment while supporting compatible fuses for overload and short-circuit protection.
The ABB OS800B series is designed for electrical engineers, panel builders and industrial installers requiring dependable high-current switching equipment. Its robust construction, British Standard fuse compatibility and IEC 60947-3 compliance make it suitable for demanding low-voltage applications.
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| Mounting Type | Base / panel | |
|---|---|---|
| Series | OS800B Switch Fuses | |
| Product type | Switch fuse disconnector | |
| Rated current | 800 A | |
| Number of poles | 4P | |
| Fuse system | British Standard | |
| Fuse size | C1-C3 | |
| Operating mechanism | 22 (Between the Poles) | |
| Fourth pole type | Switched with solid link | |
| Operation | Front operated | |
| Mounting type | Base mounting | |
| Handle type | Handle and shaft not included | |
| Terminal type | Lug terminals | |
| Terminal width | 39 mm | |
| Tightening torque | 50–75 N·m | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 12 kV | |
| Rated short-time withstand current | 18 kA for 1 s | |
| Rated conditional short-circuit current | 100 kA at 500 V / 80 kA at 690 V | |
| Power loss | 75 W per pole | |
| Conventional thermal current | 800 A | |
| Fully enclosed thermal current | 720 A | |
| Standards | IEC 60947-3 | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | 306 × 429 × 233 mm | |
| Weight | approx. 18.464 kg |
The ABB OS800B22N2 is an 800 A switch fuse disconnector used for electrical switching, isolation and British Standard fuse protection in high-current low-voltage systems.
The OS800B22N2 features a 4-pole switch fuse configuration.
The switch fuse uses a British Standard C1-C3 fuse system.
No, the ABB OS800B22N2 is supplied with the handle and shaft not included.
The ABB OS800B22N2 uses a switched fourth pole with solid link.
ABB OS800B switch fuses are widely used in industrial installations to provide reliable switching, isolation and fuse protection for high-current electrical circuits.
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