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1SCA137532R1001 ABB 100 A 3-Pole BS Switch Fuse with Back Nuts
ABB OS100GB12-42 is a 100 A 3-pole British Standard switch fuse for A2–A4 fuse links with integrated terminal back nuts and a front-operated mechanism positioned between the poles.
£135.76
Why Choose the ABB OS100GB12-42 100 A 3-Pole BS Switch Fuse?
The ABB OS100GB12-42 is a robust 100 A 3-pole switch fuse designed for switching, isolation and fuse-based protection in low-voltage electrical distribution systems. Part of the ABB OS100 fuse switch range, it uses British Standard fuse links and provides dependable circuit control for industrial and commercial installations.
The OS100GB12-42 is designed for BS A2–A4 fuse links and features integrated nuts on the back of the terminals for easier installation. Its front-operated construction has the operating mechanism positioned between the poles, providing a compact arrangement for integration into switchboards, control panels and distribution assemblies.
Rated at 100 A with a 3-pole configuration, the OS100GB12-42 is suitable for three-phase switching and isolation duties. This specific version is supplied without a handle and shaft, allowing compatible ABB operating accessories to be selected separately to suit the enclosure and required installation depth.
Key Advantages
- Reliable 100 A 3-pole switch fuse for three-phase installations.
- Designed for British Standard A2–A4 fuse links.
- Integrated back nuts support straightforward terminal installation.
- Combines switching, isolation and fuse-based circuit protection.
- Front-operated design for convenient panel integration.
- Operating mechanism positioned between the poles.
- Supplied without handle and shaft for flexible accessory selection.
Key Features
- ABB OS100 fuse switch.
- 100 A rated operational current.
- 3-pole configuration.
- British Standard fuse system.
- Suitable for A2, A3 and A4 fuse links.
- Maximum fuse diameter of 32 mm.
- Integrated terminal nuts.
- Front-operated switching arrangement.
- Operating mechanism located between the poles.
- Suitable for operation up to 690 V AC.
- Handle and operating shaft are not included with this version.
- Designed for integration into low-voltage switchboards and distribution equipment.
Reliable Three-Phase Switching and Fuse Protection
The ABB OS100GB12-42 combines manual circuit switching and isolation with the protection provided by appropriately selected British Standard fuse links. Its 100 A, 3-pole configuration enables all three phases of a three-phase circuit to be switched together, while the installed fuses provide overcurrent and short-circuit protection appropriate to their selected characteristics.
The -42 terminal configuration incorporates nuts on the back of the terminals to simplify connection during panel assembly. With the operating mechanism positioned between the poles and compatible handle and shaft accessories selected separately, the OS100GB12-42 provides flexibility for integration into a wide variety of industrial switchboards and electrical distribution systems.
Typical Applications
- Industrial three-phase power distribution systems.
- Main and sub-distribution switchboards.
- Three-phase feeder switching and isolation.
- Industrial machinery and equipment supplies.
- Electrical control panels and distribution assemblies.
- Installations requiring British Standard fuse protection.
Technical Specifications
| Series | OS100 |
|---|---|
| ABB order code | 1SCA137532R1001 |
| Product type | Switch fuse |
| ABB product group | 311021-OS Fuse Switches |
| Rated current | 100 A |
| Number of poles | 3 |
| Fuse system | British Standard |
| Fuse size | A2–A4 |
| Maximum fuse diameter | 32 mm |
| Rated operational current AC-20…23A | 100 A at up to 690 V AC |
| Rated operational power AC-23 | 55 kW at 400 V, 55 kW at 500 V and 90 kW at 690 V |
| Operation | Front operated |
| Operating mechanism position | Between the poles |
| Terminal configuration | Integrated nuts on back of terminals |
| Handle | Not included |
| Operating shaft | Not included |
Frequently Asked Questions
What is the ABB OS100GB12-42 used for?
The ABB OS100GB12-42 is a 100 A 3-pole switch fuse designed for switching, isolation and fuse-based protection of three-phase low-voltage electrical circuits.
What fuse links does the ABB OS100GB12-42 use?
The OS100GB12-42 uses the British Standard fuse system and is designed for A2–A4 fuse links with a maximum fuse diameter of 32 mm.
Does the ABB OS100GB12-42 have integrated back nuts?
Yes. The OS100GB12-42 has nuts integrated on the back of its terminals, providing a practical connection arrangement for panel and switchboard installation.
How many poles does the ABB OS100GB12-42 have?
The OS100GB12-42 has a 3-pole configuration designed for simultaneous switching and isolation of three-phase circuits.
Does the ABB OS100GB12-42 include a handle and shaft?
No. This specific OS100GB12-42 version is supplied without a handle and operating shaft, allowing compatible ABB accessories to be selected separately for the installation.
Trusted ABB Fuse Switching Technology
ABB OS switch fuses combine dependable switching and isolation with British Standard fuse protection, providing a robust solution for industrial and commercial low-voltage power distribution systems.
