MODELAPMR - 3 PHASE FAULT DETECTION DIN RAILMODULE
DESCRIPTION
The APMR protects three phase equipment, mostly motors, from destructive
line conditions. Specifically it detects Phase Reversal, Phase Loss, Phase
Unbalance and Low Voltage. All of these conditions, except for Phase Reversal,
produce excessive heating of motor windings, causing immediate or cumulative
damage to the motor. Phase Reversal will cause a motor to operate in the reverse
intended direction, possibly damaging machinery.
There are three models available; 230 VAC, 380 VAC, and 480 VAC. The
230 VAC model is used with 208, 220, 230, and 240 VAC rated equipment. The
380 VAC model is used with 380 and 415 VAC (European) equipment. The 480
VAC model is used with 440, 460, and 480 VAC rated equipment. The
electrical connection is three wire Delta or WYE configurations (no neutral