Per R55, your choices are 20 Amp fuse or 20 Amp snap-action circuit breaker.
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If the compressor is used, the air compressor Spike relay power feed must be protected with a 20A fuse or 20A circuit breaker. No other electrical load can be connected to this breaker.
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I recommend the circuit breaker, which won't usually trip from the current spike during compressor startup. The fuse can really ruin your match if it burns out.