The E7BX is a water heating boost control, intended for use where cheap overnight heating of water is controlled by the Electricity Company's Radio Teleswitch, Radio Telemeter or Tariff Time Switch.
- Simple to install and use
- Boost period adjustable between 0 and 120 minutes
- Neon indicator shows when boost timer is running
- Can be used with one or two immersion heaters
- Suits earth-leakage circuit breaker installations