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1SCA022753R2230 ABB 315 A 4-Pole BS Switch Fuse with N2 Switched Neutral
ABB OS315B40N2 is a 315 A 4-pole BS-type switch fuse for B1–B4 fuse links with a 40 mechanism on the left, an N2 non-fused switched neutral on the right and handle and shaft included for industrial fused isolation.
£670.40
Why Choose the ABB OS315B40N2 Switch Fuse?
The ABB OS315B40N2 is a robust 315 A 4-pole switch fuse designed for reliable switching, isolation and fuse protection in industrial low-voltage distribution systems. Identified by ABB order code 1SCA022753R2230, this model belongs to the ABB OS315 switch fuse range and is designed for British Standard B1–B4 fuse links.
This specific OS315B40N2 configuration features a 40 operating mechanism positioned on the left together with an N2 non-fused switched neutral on the right side. The arrangement provides three fused phase poles plus a switched neutral pole, making it suitable for three-phase systems where coordinated neutral isolation is required without fusing the neutral conductor.
With a rated current of 315 A, compatibility with B1–B4 fuse sizes and a front-operated design, the OS315B40N2 provides dependable high-current fused isolation. The configuration includes the handle and shaft, supporting straightforward integration into industrial switchboards, distribution assemblies and machinery.
Key Advantages
- 315 A rated current for demanding industrial distribution systems.
- 4-pole arrangement for three-phase systems with neutral.
- N2 non-fused switched neutral positioned on the right side.
- 40 operating mechanism positioned on the left.
- Compatible with B1–B4 British Standard fuse links.
- Handle and shaft included for convenient enclosure operation.
Key Features
- ABB OS315 switch fuse.
- 315 A rated current.
- 4-pole construction.
- Three fused phase poles with a non-fused switched neutral.
- N2 neutral positioned on the right side.
- 40 mechanism positioned on the left.
- Designed for B1–B4 BS-type fuse links.
- Front-operated construction.
- Base-mounted design with lug terminals.
- Operating handle and shaft included.
Four-Pole Fused Isolation with Switched Neutral
Switch fuses combine manual circuit switching and positive isolation with fuse-based overcurrent and short-circuit protection. The OS315B40N2 provides fuse protection on the three phase conductors while its fourth pole switches the neutral through a solid, non-fused connection, allowing the complete supply arrangement to be isolated as required.
The ABB OS315B40N2 combines this N2 right-side neutral arrangement with a left-positioned 40 operating mechanism. Together with its 315 A rating, B1–B4 fuse compatibility and included handle and shaft, this makes it a practical solution for industrial distribution assemblies requiring dependable phase protection and coordinated neutral switching.
Typical Applications
- Industrial low-voltage distribution boards.
- Three-phase systems requiring switched neutral isolation.
- Switchgear and switchboard assemblies.
- Industrial machinery and equipment isolation.
- High-current fused feeder circuits.
- OEM and process-industry power-distribution systems.
Technical Specifications
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| Mounting Type | Base / panel | |
|---|---|---|
| Series | OS315 / OS Switch Fuses | |
| ABB order code | 1SCA022753R2230 | |
| Product type | BS-type switch fuse | |
| Rated current | 315 A | |
| Number of poles | 4 | |
| Phase poles | 3 fused poles | |
| Fourth pole | Non-fused switched neutral | |
| Neutral configuration | N2 | |
| Neutral position | Right side | |
| Fuse system | British Standard | |
| Fuse sizes | B1–B4 | |
| Operating mechanism | 40 | |
| Mechanism position | Left | |
| Operation | Front operated | |
| Mounting | Base mounted | |
| Terminal type | Lug terminals | |
| Handle and shaft | Included | |
| Application | Switching, isolation and fuse protection | |
| Product group | 311021 – OS Fuse Switches |
Frequently Asked Questions
What is the ABB OS315B40N2 used for?
The ABB OS315B40N2 is used for switching, circuit isolation and fuse protection in industrial three-phase low-voltage systems requiring a switched neutral.
What is the rated current of the OS315B40N2?
The OS315B40N2 has a rated current of 315 A.
What does N2 mean on the OS315B40N2?
The N2 designation identifies a non-fused switched neutral positioned on the right side of the switch fuse.
What fuse sizes does the OS315B40N2 use?
The ABB OS315B40N2 is designed for B1–B4 British Standard fuse links.
Does the OS315B40N2 include a handle and shaft?
Yes. The ABB OS315B40N2 configuration is supplied with the operating handle and shaft for front operation.
Trusted ABB Low-Voltage Switching Technology
ABB OS switch fuses provide dependable switching, isolation and fuse-based protection for industrial power systems, with the OS315B40N2 combining a 315 A rating, B1–B4 fuse compatibility and an N2 right-side switched neutral for four-pole distribution applications.
