30V won’t kill you.

Well, it definitely can, in certain circumstances – if there’s enough amperage available and if something (such as having wet hands) reduces the electrical resistance of your skin.

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But, yes, with current in the micro-amps even when dead shorted, this shouldn’t be too dangerous.

Though, OP feeling a tingling when they touch it gives me pause. 30V shouldn’t really do that in most cases. OP is measuring AC voltage here, but maybe there’s also a DC voltage on it?