GFCI on 480v 3ph power washer?

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Electricmech

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Electrician
My company has purchased a 480V 3 phase power washer on wheels. it's basically a 10hp 3hpase 480 motor and pump on a set of wheels with a 480v 3phase pigtail on motor from factory and that's it. Boss wants me to wire it up in a wash bay they have setup. I can mount it permanent and run conduit to it or wire it into a wall mounted box. I'm sure if it is corded with a plug it needs a machine mounted or inline GFCI. Does it need a GFCI if its hardwired and grounded, not sure with current NEC. Any thoughts on this. Thank you.
 
Besides, you'd be hard pressed to FIND a GFCI for 480V equipment. GFCI is not the same thing as GFEP (Ground Fault Equipment Protection) that you can get for 480V.
 
This is product specs off what we are looking at

Product Specifications Type: Special Purpose Ground Fault Circuit Interrupter (SPGFCI) Voltage: 480 VAC (To be used on power systems where no conductor is greater than 300 VAC to ground (277/480V) Operating Voltage Range: Typically 85% to 110% of rated voltage (408 - 528 VAC) Current: Up to 60 Amps Short Circuit Interrupt: 10K AIC (100K+ with appropriate limiting fuses) Frequency: 60 Hz; (50 Hz available) Trip Level: 20mA Electrocution Protection plus 100 Ω chassis verification Phase: 3Ø (DELTA) Response Time: 21mS max @ 500 Ohm Fault Motor Load: 25/7.5 HP (300 LRA) Operating Temperature: -35°C to 50°C Reset Type: Automatic or Manual (safe start) reset Enclosure: NEMA 4X wet location rated (10.5” x 8.5” x 5.5”) Switching Interface: Double insulated Latching Mechanism: Electro-magnetic
 
It’s a 20 mA GFPE. A 30 mA GFPE breaker is probably less money, easier to install. Neither are required by the NEC…
 
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