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The Dual Voltage Phase Monitor automatically selects which voltage-scale to operate from, either 200-280 VAC or 425-525 VAC. Part numbers: 001-DVM-118, 001-DVM-1212 and 001-DVM-DR are Three Phase Monitors used for Motor Protection.

When proper voltage is connected to the Phase Monitor, the internal relay of the Phase Monitor Relay will be energized and the LED will come on steady. An abnormal condition in the Phase Failure Relay will cause the LED to blink during the trip delay. When the trip

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Unit of Measure

Specifications

Underwriter's Laboratories (UL) File Number

#E101681

Alternating Current (AC) Operating Voltage

230 V480 V

Relay Type

SPDT SPST

Base Terminal Configuration

8 Pin, Octal

Socket Type

8 Pin Octal

Under Voltage Trip

-15% of Setting for 230V -10% for 480V

Under Voltage Reset

-12% of Setting for 230 V -8% for 480 V

Over Voltage Trip

+10% for 480 V +15% of Setting for 230 V

Over Voltage Reset

+8% for 480 V +12% of Setting for 230 V

Phase Unbalance Trip

10% with 1 Second Trip Delay 5% with 5 Second Trip Delay

Phase Unbalance Reset

4 %

Trip Delay

5 sec. (Delay is reduced to less than 1 sec if Phase Imbalance is 10% or greater.)

Reset Delay

2 seconds Standard (See Options)

Voltage Ranges

200 to 280 V425 to 525 V

Output Rating at 240 Volt Alternating Current (AC) Voltage

10A Resistive

Operating Temperature

-40 to +40 ºC

Storage Temperature

-45 to 85 ºC

Enclosure Material

White Lexan

Base Material

Phenolic

Protects Against

(Optional Over Voltage) Under Voltage Phase Loss Phase Imbalance Phase Reversal

Category

Phase Monitors

Additional Description

Additional Description

The LED of the Three Phase Monitoring Relay will then provide a series of pulses that indicate which fault condition is present. When conditions return to normal, the LED of the Phase Sensing Relay will blink during the reset delay. When the reset delay has expired, the LED will come on steady and the internal relay will be energized. The reset delay is also active immediately after power is turned on to the unit. These units can be used on Delta or Wye systems, 50/60 Hz, and 230/480VAC.