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1SCA122008R1001 ABB 125 A 3+N BS Switch Fuse
ABB OS125GB03N3P is a 125 A front-operated British Standard 3+N switch fuse for A2-A4 fuse links, featuring a detachable neutral link integrated into the mechanism and supplied with a 161 mm shaft and external handle.
£258.39
Why Choose the ABB OS125GB03N3P 125 A 3+N BS Switch Fuse?
The ABB OS125GB03N3P is a 125 A front-operated switch fuse designed for switching, isolation and fuse protection in low-voltage electrical distribution systems. Part of the ABB OS range, this British Standard model uses a 3+N configuration and is designed for A2-A4 fuse links.
The OS125GB03N3P features an N3 detachable neutral link integrated into the operating mechanism, providing a compact solution where a neutral connection is required alongside three fused phase poles. The operating mechanism is positioned at the end of the switch, supporting straightforward integration into industrial switchboards and distribution panels.
This version is supplied with a 161 mm operating shaft and an OHB65J6 external handle. The handle provides IP65 protection when installed appropriately, is padlockable in the OFF position and incorporates door interlocking in the ON position for secure operation and isolation.
Key Advantages
- 125 A, 3+N switch fuse for industrial low-voltage distribution.
- Designed for British Standard A2-A4 fuse links.
- Detachable neutral link integrated into the mechanism.
- Supplied with a 161 mm operating shaft and external handle.
- External handle is padlockable in the OFF position.
- Combines switching, isolation and fuse protection in one coordinated assembly.
Key Features
- ABB OS125 GB-type switch fuse.
- 125 A rated current.
- 3+N configuration.
- Front-operated design.
- N3 detachable neutral link integrated into the mechanism.
- A2-A4 mechanical fuse size.
- Maximum fuse diameter of 32 mm.
- Supplied with 161 mm shaft and OHB65J6 handle.
125 A Fused Switching with Integrated Neutral Link
The ABB OS125GB03N3P combines manual switching and isolation with fuse-based circuit protection for three phase conductors while incorporating a detachable neutral link directly into the operating mechanism. This 3+N arrangement provides a coordinated solution for distribution systems requiring a neutral connection alongside the fused phases.
The supplied 161 mm shaft and OHB65J6 external handle allow the switch fuse to be operated from the front of a suitable enclosure. OFF-position padlocking, ON-position door interlocking and IP65 handle protection support secure operation in industrial switchboards and distribution assemblies.
Typical Applications
- Industrial low-voltage power distribution.
- Three-phase systems with neutral conductors.
- Electrical switchboards and distribution panels.
- British Standard fused distribution circuits.
- Machinery and equipment feeder isolation.
- Commercial and industrial electrical installations.
Technical Specifications
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| Mounting Type | Base / panel | |
|---|---|---|
| Series | OS | |
| ABB order code | 1SCA122008R1001 | |
| Product type | Switch fuse / fuse switch disconnector | |
| Fuse system | British Standard | |
| Rated current | 125 A | |
| Configuration | 3+N | |
| Number of poles | 4 including neutral | |
| Switching voltage | 690 V AC | |
| Operation | Front operated | |
| Neutral arrangement | Detachable neutral link integrated into mechanism | |
| Mechanical fuse size | A2-A4 | |
| Maximum fuse diameter | 32 mm | |
| Mounting | Base mounting | |
| Terminal type | Lug terminals | |
| Included shaft | 161 mm operating shaft | |
| Included handle | OHB65J6 external handle | |
| Handle protection | IP65 | |
| Handle padlocking | OFF position | |
| Door interlock | ON position | |
| Power loss | 12 W per pole at rated operating conditions | |
| Standard | IEC 60947-3 | |
| EAN / GTIN | 6417019530239 | |
| Country of origin | Finland | |
| ABB product group | 311021-OS Fuse Switches |
Frequently Asked Questions
What is the ABB OS125GB03N3P used for?
The OS125GB03N3P is a 125 A, 3+N switch fuse designed for switching, isolation and fuse protection in low-voltage electrical distribution systems.
What type of neutral arrangement does the OS125GB03N3P have?
The OS125GB03N3P has an N3 detachable neutral link integrated into the operating mechanism.
Which fuse links does the ABB OS125GB03N3P accept?
The OS125GB03N3P is designed for British Standard A2-A4 fuse links with a maximum fuse diameter of 32 mm.
Are the handle and shaft included with the ABB OS125GB03N3P?
Yes. The OS125GB03N3P is supplied with a 161 mm operating shaft and an OHB65J6 external handle.
What is the rated current and switching voltage of the OS125GB03N3P?
The ABB OS125GB03N3P has a rated current of 125 A and a switching voltage of 690 V AC.
Trusted Fuse Switching Technology from ABB
ABB OS switch fuses combine dependable switching and isolation with fuse-based circuit protection, providing robust solutions for industrial distribution systems requiring coordinated three-phase and neutral connections.
