Phil outdoors
New member
I have a design for an electromechanical brake that fits on the non-drive end of a 3 phase motor. It is a single phase electromagnet, and it ties in directly to any two wires powering the motor, so it releases when the motor is powered.
The brake has its own fuses, however it only uses a fraction of an amp, and could be fitted to large motors pulling alot of amps.
The question is in the direction to the customer on connection details, specifically NEC related. The only thing I can find remotely close but inconclusive is in 430.53(c).
The connection to the motor leads is effectively a tap, and the brake fusing is several feet away. I'd like to state in the documentation to merely run #14 wire to the brake, but I'm afraid it'll end up being whatever size wire is powering the motor, which could be sizable.
The brake has its own fuses, however it only uses a fraction of an amp, and could be fitted to large motors pulling alot of amps.
The question is in the direction to the customer on connection details, specifically NEC related. The only thing I can find remotely close but inconclusive is in 430.53(c).
The connection to the motor leads is effectively a tap, and the brake fusing is several feet away. I'd like to state in the documentation to merely run #14 wire to the brake, but I'm afraid it'll end up being whatever size wire is powering the motor, which could be sizable.