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1SCA115324R1001 ABB OS63GB12 Switch-disconnector fuse, 63A, 3-pole, British Standard A2/A3, front operated.
ABB OS63GB12 63 A three-pole front-operated switch fuse for British Standard A2/A3 fuse links, designed for industrial circuit protection and electrical isolation.
£89.36
Why Choose the ABB OS63GB12 Switch Fuse?
The ABB OS63GB12 is a high-performance 63 A three-pole switch fuse designed for the safe switching, isolation and protection of low-voltage electrical circuits. As part of ABB's proven OS switch fuse range, it combines a robust switching mechanism with integrated fuse protection, making it ideal for industrial switchboards, motor control centres and commercial power distribution systems.
Designed for use with British Standard A2/A3 fuse links, the OS63GB12 provides dependable short-circuit protection while allowing rapid fuse replacement when required. The front-operated mechanism offers convenient operation from the front of the enclosure, while the compact design simplifies installation in new and retrofit applications.
The switch fuse is supplied without an operating handle or shaft, allowing these accessories to be selected separately to suit the installation. With a rated operational current of 63 A and operation up to 690 V AC, the OS63GB12 delivers reliable isolation and circuit protection for demanding industrial environments.
Key Advantages
- Heavy-duty 63 A switch fuse for industrial applications.
- Three-pole switching for three-phase power systems.
- Accepts British Standard A2/A3 fuse links.
- Front-operated mechanism for convenient installation.
- High short-circuit withstand capability.
- Suitable for use as both a main switch and safety switch.
Key Features
- ABB OS switch fuse series.
- 63 A rated operational current.
- Three-pole configuration.
- Designed for BS A2/A3 fuse links.
- Front-operated switching mechanism.
- Screw connection terminals.
- Busbar mounting compatible.
- Operating handle and shaft supplied separately.
Reliable Switching and Fuse Protection
The ABB OS63GB12 combines manual isolation with fuse protection in a single compact unit, providing safe switching together with effective protection against overloads and short circuits. Its front-operated mechanism and robust construction make it well suited to industrial power distribution systems where dependable operation and ease of maintenance are essential.
Designed for use with British Standard A2/A3 fuse links, the switch fuse offers excellent protection for feeders, motors and distribution circuits. Optional ABB operating handles and shafts can be selected to match the enclosure configuration while maintaining IP65 protection when installed with compatible accessories.
Typical Applications
- Industrial switchboards.
- Motor control centres.
- Power distribution panels.
- Commercial electrical installations.
- OEM machinery.
- Industrial automation systems.
Technical Specifications
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| Device Type | Fuse switch disconnector | |
|---|---|---|
| Product Series | ABB OS | |
| Current | 63 A | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Manufacturer | ABB | |
| Series | OS Switch Fuses | |
| Model | OS63GB12 | |
| Product ID | 1SCA115324R1001 | |
| Product type | Switch fuse | |
| Rated operational current (Ie) | 63 A | |
| Number of poles | 3 | |
| Fuse type | British Standard A2/A3 | |
| Rated operational voltage | Up to 690 V AC | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 12 kV | |
| Rated operational power (AC-23A) | 55 kW at 690 V | |
| Rated conditional short-circuit current | 80 kA | |
| Rated short-time withstand current (Icw) | 2.5 kA (1 s) | |
| Terminal type | Screw terminals | |
| Mounting type | Busbar mounting | |
| Operating mode | Front operated | |
| Dimensions (W × H × D) | 112 × 125 × 109 mm | |
| Net weight | Approx. 1.18 kg | |
| Standards | IEC 60947-3 | |
| HS Code | 85365080 | |
| Country of Manufacture | Finland |
Frequently Asked Questions
What is the ABB OS63GB12 used for?
The ABB OS63GB12 is a switch fuse used to safely isolate and protect three-phase electrical circuits using British Standard A2/A3 fuse links.
What is the rated current?
The OS63GB12 has a rated operational current of 63 A.
Which fuse links does it accept?
The switch fuse is designed for British Standard A2/A3 fuse links.
Does the OS63GB12 include a handle and shaft?
No. The operating handle and shaft are supplied separately so they can be selected to suit the enclosure and installation requirements.
Where is the ABB OS63GB12 typically installed?
It is commonly installed in industrial switchboards, motor control centres, commercial distribution panels and machinery requiring reliable fused isolation.
Trusted ABB Switch Fuses
ABB OS switch fuses are trusted worldwide by electrical engineers, panel builders and OEMs for dependable circuit protection, reliable switching performance and long-term durability in demanding low-voltage applications.
