2880 North Plaza Drive, Rapid City, SD 57702 • (800) 843-8848
INSTALLATION INSTRUCTIONS
FOR SYMCOM’S MOTORSAVER
MODEL 250600
CONNECTIONS
1.Mount the MotorSaver in a convenient location in or near the motor control
panel. If the location is wet or dusty, then the MotorSaver should be
mounted in a NEMA 4 or 12 enclosure.
2.Connect the three lines of the motor’s three-phase power supply to L1, L2
and L3 on the MotorSaver’s terminal strip
3.Connect the output relay to the circuitry to be controlled (see Figure No. 1
and Figure No. 2).
A. To control a motor, connect the normally open contact in series with the
magnetic coil of the motor starter as shown in Figure 1.
B. To sound an alarm, connect the normally closed contact in series with the
alarm as shown in Figure 2.
The Model 250600 is a three-phase voltage monitor designed to protect motors
regardless of horsepower. It will protect 50 to 60 Hz motors from damage
caused by single phasing, phase reversal, voltage unbalance, low voltage and
high voltage. Added features include DPDT contacts and an adjustable restart
delay.
Figure No.1: Typical Motor Control Wiring Diagram
