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# Relay Rating Question

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#### Lighty

##### New Member
Hi all

This may sound like a stupid question, probably is, but I'm a little cunfused

A relay is rated:
Contact rating (resistive) = 16A 250VAC / 30VDC
(inductive)= 8A 250VAC / 30VDC

Max Switching Voltage = 250VAC / 30VDC

Max Switching current = 16A

Max Switch Power = 4000VA / 480W

So what I'm confused about is, if its rated for 16A 250VAC, that equates to 16x250 = 4000W, they refer to it as 4000VA / 480W? Isn't 480W @ 250V = 1.92A?

I need a relay to which a 800W 220V inductive load (metal Halide Light), so this won't work?

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• HRM2_A.pdf
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#### MikeMl

##### Well-Known Member
16A x 30V = 480W (It is the DC rating). I think you halide lamp ballast is an inductive load, so it will work for that application (i.e. the inductive current is less than 8A).

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#### Lighty

##### New Member
Thanks MikeMI

Now I feel like a idiot

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