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1SCA022858R2380 ABB 400A 3-Pole Switch Fuse
ABB OS400B12PRP is a 400 A 3-pole switch fuse with a mechanism between the poles, plug-in input and right-side output connection for high-current low-voltage switching, isolation and fuse protection.
£1,161.09
Why Choose the ABB OS400B12PRP Switch Fuse?
The ABB OS400B12PRP is a heavy-duty 400 A 3-pole switch fuse designed for reliable switching, isolation and fuse protection in low-voltage power 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 electrical installations.
This configuration features an operating mechanism positioned between the poles and a specialised plug-in input with right-side output connection. The OS400B12PRP is front operated and supplied with a handle and shaft, providing a complete operating arrangement for integration into switchboards and power distribution assemblies.
With a rated current of 400 A, a 3-pole configuration and a rated operational voltage of 690 V AC, the OS400B12PRP is designed for substantial low-voltage loads. It uses the British Standard fuse system with B1–B4 fuse sizes, providing a practical combination of high-current isolation and fuse-based circuit protection.
Key Advantages
- Heavy-duty 400 A switch fuse for industrial power distribution.
- 3-pole configuration for three-phase circuit switching and isolation.
- Combined switching, isolation and fuse protection in one device.
- Plug-in input and right-side output connection arrangement.
- Mechanism positioned between the poles for the specified OS400B12PRP configuration.
- Supplied with handle and shaft for convenient operation and installation.
Key Features
- ABB OS fuse switch range.
- 400 A rated current.
- 3-pole switch fuse configuration.
- 690 V AC rated operational voltage.
- British Standard fuse system.
- B1–B4 fuse sizes.
- Plug-in input with right-side output.
- Front-operated mechanism between the poles.
- Handle and adjustable shaft included.
- Base-mounted construction for switchboard integration.
Reliable High-Current Switching and Fuse Protection
Switch fuses combine the isolation capabilities of a manually operated switch with fuse-based overcurrent protection. This arrangement allows circuits to be positively disconnected for operation and maintenance while correctly selected fuse links provide protection against potentially damaging overcurrent and short-circuit conditions.
The ABB OS400B12PRP is engineered for high-current low-voltage distribution applications where dependable three-pole isolation is required. Its plug-in input and right-side output arrangement, mechanism between the poles and front-operated design make it particularly suitable for integration into purpose-built switchboards and industrial power distribution assemblies.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and sub-distribution switchboards.
- Industrial machinery power isolation.
- Fuse-protected three-phase feeder circuits.
- Commercial and infrastructure electrical distribution.
- OEM switchgear and power control assemblies.
Technical Specifications
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| Mounting Type | Base / panel | |
|---|---|---|
| Series | OS Fuse Switches | |
| ABB order code | 1SCA022858R2380 | |
| Product type | Switch fuse | |
| ABB product group | 311021-OS Fuse Switches | |
| Rated current | 400 A | |
| Number of poles | 3 | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 12 kV | |
| Fuse system | British Standard | |
| Fuse size | B1–B4 | |
| Operating mode | Front operated | |
| Operating mechanism | Between the poles | |
| Connection arrangement | Plug-in input, right-side output | |
| Mounting type | Base mounting | |
| Handle and shaft | Included | |
| Dimensions (W × H × D) | 372 × 212 × 278 mm | |
| Weight | 9.3 kg |
Frequently Asked Questions
What is the ABB OS400B12PRP used for?
The ABB OS400B12PRP 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 OS400B12PRP?
The OS400B12PRP has a rated current of 400 A.
How many poles does the OS400B12PRP have?
The ABB OS400B12PRP is a 3-pole switch fuse designed for three-phase circuit switching and isolation.
What is the connection arrangement of the OS400B12PRP?
The OS400B12PRP has a plug-in input with right-side output connection, matching its specified PR configuration.
What fuse system does the OS400B12PRP use?
The OS400B12PRP uses the British Standard fuse system and supports B1–B4 fuse sizes.
Where is the operating mechanism positioned?
The operating mechanism of the OS400B12PRP is positioned between the poles and is front operated.
Are the handle and shaft included with the ABB OS400B12PRP?
Yes. The OS400B12PRP is supplied with a handle and shaft as part of its operating arrangement.
Trusted by Electrical Professionals Worldwide
ABB OS switch fuses are widely specified for dependable switching, isolation and fuse protection in low-voltage power distribution systems, supporting panel builders, OEMs and electrical professionals in demanding industrial installations.
