Inductance on a heater coil.

[Peru]

I'm and ME so bear with me please....

I would like to run a 240V 3000W (2 1500W in parallel) heater using an Opto22 240D45 SSR to control the power to the heater. Opto22 tech support says I need to verify that I don't need a snubber circuit due to the inductive load on the heater coils. This is primarily to heat water so no high freq switching on anything like that.

Question...can I assume the inductive load to be negligible?
If not, how can I determine the inductive load? I don't have a digital scope so I can't measure it experimentally...

Any assistance would be appreciated.

Thanks

 

[jbartos]

Suggestion: Normally, the heater of this size has a prevailing resistive component over the inductive component, so that the snubber will not be needed. If the heater has a nameplate, the manufacturer tech support may be contacted for the heater specifications.