"Ian Malcolm" wrote in message
...
CS wrote:

Looking to fit a resistor/relay combination in the supply line of a
3600VA 240v isolation transformer. I reckon the resistor should be 8
ohms - based on 200% loading, but anyone know what wattage is
required???

Thanks.

Consider what happens if the relay fails to close. What is the maximum
wattage the resistor could dissipate with a short on the secondary of
the transformer?

What about using a light bulb?

Meindert