ID:
2024
Maker's Name:
Zellweger (Aust) Pty Ltd
Where made:
Australia
Dimensions:
18.5 × 11.7 × 7.5 cm
This unit is used to control turn-on times for domestic hot water systems. It contains a frequency-sensitive relay. A 1050 Hz signal is sent down the AC mains to this unit to toggle the relay on and off.
