500s motors on relays?

[thefro526]

We ran the two 550's on our roller claw last year through Spikes and never had an issue. With proper gearing you SHOULD be alright as far as current draw goes. We plan on running a 500-series sized motor through a spike again this year but are prepared to swap it out to a Victor if needed.

[Jared Russell]

I never like putting a motor which can draw (vastly) more than 20A in line with a 20A fuse under any circumstances. Even if the motor *shouldn't* stall in its application, I would not feel comfortable.

[Dad1279]

Originally Posted by Jared341

I never like putting a motor which can draw (vastly) more than 20A in line with a 20A fuse under any circumstances. Even if the motor *shouldn't* stall in its application, I would not feel comfortable.

The fuse / breakers are there to protect the motor and wring. So depending on the mechanism, I can see an advantage. If it is designed to never need more than 10 amps, at a constant speed, the fuse will (should) prevent a smoked motor in case of stall.

[Al Skierkiewicz]

Dad,
While that is generally the case, the fuse on the Spike is meant to protect the contacts of the relays inside. The rule about using a breaker came from a manufacturer's recommendation for the Spike driving a compressor.