A 125A single-phase manual transfer switch for safely selecting between the mains supply and a standby generator. Designed for permanent installation, it gives the user manual control of the changeover during a power cut and when mains power returns.
Key Features
- Suitable for single-phase standby generators with an output of up to 125A
- 230–240V single-phase operation
- Manual changeover between mains and generator supplies
- Supplied with busbar
- Two normally open and two normally closed contacts
- Wall-mounted steel enclosure with undrilled knockout panels
- Protective flip lid over the changeover switch
- Free delivery when ordered with a generator
How It Works
The transfer switch is installed close to the incoming mains supply. Under normal conditions, the building is powered by the mains. If the mains supply fails, the standby generator is started and the switch is operated manually to transfer the selected load to generator power. Once mains power returns, the load is manually transferred back before the generator is shut down.
Technical Specifications
| Rated current | 125A AC1 |
| Supply | Single phase, 230–240V |
| Application | Manual mains-to-generator load transfer |
| Contacts | 2 normally open and 2 normally closed |
| Enclosure | IP20-rated steel enclosure with flip lid |
| Approx. dimensions | 225 × 115 × 85mm (H × W × D) |
| Compliance | BS EN 60947-3 |
Enclosure dimensions and component manufacturer may vary slightly according to supply.
Installation Note
This product must be installed by a suitably qualified electrician with experience in standby power systems. The electrician should confirm generator capacity, cable sizing, earthing arrangements and the circuits to be supplied before installation.