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1SCA128216R1001 ABB 100 A 3-Pole BS Switch Fuse with Backnuts
ABB OS100GB03-42 is a 100 A 3-pole British Standard switch fuse with integrated backnuts for A2–A4 fuse links, supplied without a handle and shaft for low-voltage switching, isolation and fuse protection.
£135.76
Why Choose the ABB OS100GB03-42 100 A 3-Pole BS Switch Fuse?
The ABB OS100GB03-42 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 OS fuse switch series, it combines dependable switching performance with the protection provided by British Standard fuse links for industrial and commercial applications.
Designed for BS A2–A4 fuse links, the OS100GB03-42 features integrated backnuts for straightforward terminal installation. The switch is front operated with the operating mechanism positioned on the left side, while its base-mounted construction makes it suitable for integration into switchboards, control panels and distribution assemblies.
With a rated current of 100 A and a 3-pole configuration, the OS100GB03-42 provides reliable circuit isolation for three-phase installations. This version is supplied without a handle and shaft, allowing the appropriate ABB operating accessories to be selected separately for the installation.
Key Advantages
- Heavy-duty 100 A 3-pole switch fuse for low-voltage distribution.
- Designed for British Standard A2–A4 fuse links.
- Integrated backnuts simplify terminal installation.
- Combines switching, isolation and fuse-based circuit protection.
- Front-operated design for straightforward switchboard integration.
- Base mounting provides secure installation within electrical assemblies.
- Supplied without handle and shaft for flexible accessory selection.
Key Features
- ABB OS fuse switch series.
- 100 A rated current.
- 3-pole configuration.
- British Standard fuse system.
- Suitable for A2–A4 fuse links.
- Integrated terminal backnuts.
- Front-operated switching mechanism.
- Operating mechanism positioned on the left side.
- Base-mounted construction.
- Lug terminals for electrical connections.
- Handle and shaft supplied separately.
- Designed in accordance with IEC 60947-3.
Reliable Switching, Isolation and Fuse Protection
Switch fuses such as the ABB OS100GB03-42 combine manual circuit isolation with the high fault-current protection provided by appropriately selected fuse links. This arrangement enables circuits to be positively disconnected while BS fuse links provide protection against damaging overcurrent and short-circuit conditions.
The OS100GB03-42 is particularly suited to three-phase distribution applications requiring a 100 A, 3-pole BS switch fuse. Its integrated backnuts simplify installation, while the front-operated, base-mounted design enables straightforward integration into electrical panels and switchboards. A compatible handle and shaft can be selected separately to suit the enclosure and operating arrangement.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and sub-distribution switchboards.
- Three-phase feeder switching and isolation.
- Industrial machinery and equipment supplies.
- Control panels and electrical distribution assemblies.
- Installations requiring British Standard fuse protection.
Technical Specifications
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| Mounting Type | Base / panel | |
|---|---|---|
| Series | OS Fuse Switches | |
| ABB order code | 1SCA128216R1001 | |
| 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 | |
| Fuse type | BS | |
| Terminal configuration | Integrated backnuts | |
| Terminal type | Lug terminals | |
| Terminal width | 20 mm | |
| Operating mode | Front operated | |
| Operating mechanism | 03, left side | |
| Mounting type | Base mounting | |
| Handle and shaft | Not included | |
| Rated operational current AC-21A | 100 A | |
| Rated operational current AC-22A | 100 A | |
| Rated operational current AC-23A | 100 A | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 8 kV | |
| Rated short-time withstand current | 5 kA rms for 1 s | |
| Rated conditional short-circuit current | 80 kA at 690 V | |
| Power loss | 12 W per pole at rated operating conditions | |
| Pollution degree | 3 | |
| Line terminal arrangement | Top in / bottom out or bottom in / top out | |
| Tightening torque | 15–22 N·m | |
| Standard | IEC 60947-3 | |
| EAN | 6417019580357 |
Frequently Asked Questions
What is the ABB OS100GB03-42 used for?
The ABB OS100GB03-42 is a 100 A 3-pole switch fuse used for switching, isolation and fuse-based protection of low-voltage electrical circuits.
What fuse links does the ABB OS100GB03-42 use?
The OS100GB03-42 uses the British Standard fuse system and is designed for A2–A4 fuse links.
Does the ABB OS100GB03-42 have integrated backnuts?
Yes. The -42 configuration has integrated terminal backnuts, designed to simplify installation and electrical connection.
How many poles does the ABB OS100GB03-42 have?
The OS100GB03-42 has a 3-pole configuration suitable for three-phase switching and isolation applications.
Does the ABB OS100GB03-42 include a handle and shaft?
No. The OS100GB03-42 is supplied without a handle and shaft, allowing compatible ABB operating accessories to be selected separately for the required 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.
