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Relay suggestions

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CRB3

Electrical
Oct 13, 2006
3
Looking for a reliable relay: 5V to 12V drive - to control 120VAC ON/OFF. Any suggestions?
 
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At only 1A 120V ac, there are a lot of options. Even the lowly Potter-Brumfield type plug-in relays would probably be adequate.

If you're doing this hundreds of times per hour, you might want a heavier duty machine-tool type relay.

Is this one-off or are you looking at buying thousands of these?

 
It's only 2 per unit. It's for an automated machine, basically a few hundred cycles/day. It will be used to energize a coil with 110V AC to control an air cyliner. I'm looking at using one of IR's photovoltaics: PVA33 series - - The goal is to keep it the control for the cylinder as small but reliable as possible. These are much cheaper than the standard solid state relays.
 
Go with a solid state relay, this should give you good isolation with excellent reliability.

I am an automation troubleshooter and the first 2 things i look for in most any problem is (grounds for circuits, and things in the circuit that move.(ie. switches, relays with moving parts, fans etc.)

hope this helps.
John
 
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