SymCom MotorSaver 250600 Installation Instructions

Voltage monitoring relay

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.

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.

Figure No.1: Typical Motor Control Wiring Diagram

INSTALLATION INSTRUCTIONS

FOR SYMCOM'S MOTORSAVER

2880 North Plaza Drive, Rapid City, SD 57702 • (800) 843-8848

MODEL 250600

222 Disk Drive, Rapid City, SD 57701

(800) 843-8848 www.symcom.com



Table of Contents

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Page 1 INSTALLATION INSTRUCTIONS FOR SYMCOM’S MOTORSAVER  MODEL 250600 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.
Page 2 Figure 2: Typical Alarm Wiring Diagram SETTINGS 1.LINE VOLTAGE ADJUSTMENT: Rotate the LINE VOLTAGE ADJUSTMENT to the nominal three-phase secondary voltage of the potential transformer. 2.TIME DELAY RESTART (RESTART DELAY): Rotate the RESTART DELAY to the desired position. The restart delay is the time between the MotorSaver ®...
Page 3: Troubleshooting
(5) years* from the date of manufacture. All other products manufactured by SymCom shall be warranted against defects in material and workmanship for a period of two (2) years from the date of manufacture. For complete information on warranty, liability, terms, and conditions, please refer to the SymCom Terms and Conditions of Sale document.
Page 4 E68520 Visit our website at www.symcominc.com for our complete catalog and new product listings! 2880 North Plaza Drive, Rapid City, SD 57702 222 Disk Drive, Rapid City, SD 57701 Phone:(800) 843-8848 or (605) 348-5580 (800) 843-8848 www.symcom.com FAX: (605) 348-5685...

Motorsaver 250100