Electronic Motor Brakes
Stop AC Motor Loads Quickly and Safely... as easy as A-B-C
Selected voltage ratings + 10%
10 - 1000A in 10 sizes:
25% duty cycle at 100% unit rating (model dependant above 200
Full wave bridge, 4 SCRs, designed for use without isolation contactors
RC snubber dv/dt circuit on each SCR device
Approved for use with existing motor starter fusing when unit is
sized for motor FLA. Consult NEC for any other fusing requirements.
Self-powered directly from line terminals. No separate control voltage required.
Microprocessor unit controls sequencing. I/O monitoring and status
annunciation. Braking current is adjustable via true RMS regulated
Brake Time and Jog Time = 7 position binary dipswitch
Starter Monitor = Dry input for auxiliary contact from motor starter.
Brake Disable = Dry input for N.O. contact to disable braking before or during operation. Can be wired to the starter thermal overload N.O. auxiliary contact to prevent braking of overloaded motor.
Motor Power Sensor (T3) = voltage input used for sensing motor power presence in sequencing/status circuit and for zero speed sensing during braking.
Starter Coil Interlock Two sets of FORM "C" relay contacts for use
Mechanical Brake Release N.O. relay contact for use in controlling electro-mechanical brake as a holding brake. When the ABC is"disabled," this circuit controls the mechanical brake normally as if it were the only brake in the system.
Aux Contact Ratings
5 amps, 250VAC max
LED Status Indicators
Large LEDs: Braking = green; Fault = red
Operating Design Temperature
0 - 50C (32-122F) open, 0 - 40C (32 - 104F) enclosed
0 - 95% relative humidity,
0 - 3300ft (1000M) elevation
UL, cUL Listed