Hubbell Electric Heater Company V20 - Manual (Page 14)

14
1 – Terminal Block
2 – Magnetic Contactor
3 – Heating Element
4 – Low Water Cut-Off, if supplied
5 – Transformer, 480-Volt/240-Volt,
installed on 480-Volt models
with low water cut-off only
6 – High-Temperature Limit Switch
7 – Control Thermostat