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1SCA128215R1001 ABB 125 A 3-Pole BS Switch Fuse with Backnuts, Handle and Shaft
ABB OS125GB03P-42 is a 125 A 3-pole front-operated British Standard switch fuse for A2-A4 fuse links, featuring integrated terminal backnuts and supplied with a 161 mm shaft and OHB65J6 external handle.
£200.99
Why Choose the ABB OS125GB03P-42 125 A 3-Pole BS Switch Fuse?
The ABB OS125GB03P-42 is a 125 A, 3-pole, front-operated switch fuse designed for switching, isolation and fuse protection in low-voltage electrical distribution systems. Part of the ABB OS range, this GB-type model is designed for British Standard A2-A4 fuse links.
This -42 version features integrated nuts on the back of the terminals, helping simplify installation and connection within switchboards and distribution assemblies. The operating mechanism is positioned on the left side, and the unit uses base mounting with lug-type terminals.
The OS125GB03P-42 is supplied complete with an OXP6X161 161 mm operating shaft and OHB65J6 external handle. Rated at 125 A with an operational voltage up to 690 V, it provides a coordinated fused switching solution for demanding industrial applications.
Key Advantages
- 125 A, 3-pole switch fuse for industrial low-voltage distribution.
- Designed for British Standard A2-A4 fuse links.
- Integrated terminal backnuts support straightforward installation.
- Supplied with a 161 mm operating shaft and external handle.
- Front-operated design with mechanism on the left side.
- Combines switching, isolation and fuse protection within one coordinated assembly.
Key Features
- ABB OS125 GB-type switch fuse.
- 125 A rated current.
- 3-pole configuration.
- Operational voltage up to 690 V.
- A2-A4 mechanical fuse size.
- Maximum fuse diameter of 32 mm.
- Integrated nuts on the back of the terminals.
- Supplied with OXP6X161 shaft and OHB65J6 handle.
125 A Fused Switching with Integrated Backnuts
The ABB OS125GB03P-42 combines manual circuit switching and isolation with fuse-based protection across three poles. Its British Standard design accommodates A2-A4 fuse links, making it suitable for protected feeders, machinery supplies and other industrial low-voltage distribution circuits.
The -42 terminal configuration incorporates nuts on the back of the terminals to simplify installation. With the 161 mm shaft and OHB65J6 external handle included, the switch fuse can be integrated into a suitable enclosure without requiring these principal operating accessories to be ordered separately.
Typical Applications
- Industrial low-voltage power distribution.
- Electrical switchboards and distribution panels.
- British Standard fused distribution circuits.
- Machinery supply isolation and protection.
- Industrial equipment feeder circuits.
- Commercial and industrial electrical installations.
Technical Specifications
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| Mounting Type | Base / panel | |
|---|---|---|
| Series | OS | |
| ABB order code | 1SCA128215R1001 | |
| Product type | Switch fuse / fuse switch disconnector | |
| Fuse system | British Standard | |
| Rated current | 125 A | |
| Number of poles | 3 | |
| Operational voltage | up to 690 V | |
| Operation | Front operated | |
| Mechanism position | 03, left side | |
| Mechanical fuse size | A2-A4 | |
| Maximum fuse diameter | 32 mm | |
| Mounting | Base mounting | |
| Terminal type | Lug terminal with integrated backnuts | |
| Included shaft | OXP6X161, 161 mm × 6 mm | |
| Included handle | OHB65J6 external handle | |
| Power loss | 12 W per pole at rated operating conditions | |
| Product weight | approx. 2.3 kg | |
| EAN / GTIN | 6417019580340 | |
| Country of origin | Finland | |
| ABB product group | 311021-OS Fuse Switches |
Frequently Asked Questions
What is the ABB OS125GB03P-42 used for?
The OS125GB03P-42 is a 125 A, 3-pole switch fuse designed for switching, isolation and fuse protection in low-voltage electrical distribution systems.
Which fuse links does the ABB OS125GB03P-42 accept?
The OS125GB03P-42 is designed for British Standard A2-A4 fuse links with a maximum fuse diameter of 32 mm.
What does the -42 designation mean on the OS125GB03P-42?
The -42 version features nuts integrated on the back of the terminals, helping simplify installation and terminal connection.
Are the handle and shaft included with the ABB OS125GB03P-42?
Yes. The OS125GB03P-42 is supplied with an OXP6X161 161 mm operating shaft and an OHB65J6 external handle.
What is the current rating of the ABB OS125GB03P-42?
The ABB OS125GB03P-42 has a rated current of 125 A and is a 3-pole front-operated switch fuse.
Trusted Fuse Switching Technology from ABB
ABB OS switch fuses combine dependable switching and isolation with fuse-based circuit protection, while integrated terminal nuts and supplied operating accessories support efficient integration into industrial switchboards and low-voltage distribution systems.
