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455

3-PHASE LINE-LOAD VOLT MON/ 19 | Series: 455
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The 455 Series are 3-phase voltage monitors that combine load and line side monitoring to offer complete protection. Monitoring the load side will alert the user of contactor failure or impending contactor failure. Line side monitoring will also protect the motor from damaging fault conditions that may be present prior to the motor starting. With other line/load side monitors, the motor must be started before a voltage fault is detected. With the 455, your motor is fully protected at all times.

The 455 Series are 3-phase, dual range voltage monitors that protect 190-480VAC, 50*/60Hz motors, regardless of their size. It automatically selects between the 200V and 400V range when the user selects the nominal voltage setpoint. Other adjustments include a 2-30 second trip delay, a 2-300 second restart delay (and manual restart) and a voltage unbalance trip point of 2-8%. The voltage monitor’s circuitry is powered through the line side connections, so there is no need for separate control power, making it easy to install.

Equipped with an infrared LED, the 455 Sereies can communicate to the optional hand-held diagnostic tool, Informer-MS to obtain valuable information such as real-time voltage, voltage unbalance on both line and load sides, motor run hours, last 20 faults, last 32 motor starts, high and low voltage trip points, voltage unbalance trip

PropertyValue
Input Voltage (V)
190 - 480 Vac
Output Form
SPDT
Termination Type
Torque: 7 in-lbs; Wire Size: 12 - 18 AWG
Dimensions
2.93 H x 5.27 W x 2.95 D in. (74.4 x 133.9 x 74.9 mm)
Weight (kg)
0 Lb (pound)
Input AC Line Frequency (Hz)
50 / 60 (50 will increase all delay timers by 20%)
Maximum Input Power (W)
6
Output Load Rating (VA)
Pilot Duty: 480 VA @ 240 Vac; General Purpose: 10 A
Overvoltage Reset Voltage (%)
107%
Overvoltage Trip Voltage (%)
110%
Repeat Accuracy (%)
±0.1%
Restart Delay Range
Manual; 2 - 300 s adjustable
Trip Delay Range
Under/Over and Unbalance Voltage: 2 - 30 s adjustable; single-Phase faults (>25%UB): 2 s
Trip Point Accuracy (%)
±1%
Undervoltage Reset Voltage (%)
93%
Undervoltage Trip Voltage (%)
90%
Voltage Unbalance Reset (%)
Trip setting minus 1%
Voltage Unbalance Trip Point (%)
2 - 8% adjustable
Mounting Method
#8 screws
Operating Temperature Max (°C)
70
Operating Temperature Maximum Fahrenheit
158
Operating Temperature Minimum Celsius
-40
Operating Temperature Minimum Fahrenheit
-40
Storage Temperature Maximum Celsius
80
Storage Temperature Maximum Fahrenheit
176
Storage Temperature Minimum Celsius
-40
Storage Temperature Minimum Fahrenheit
-40

455 Resources

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Part NumberPart DescriptionRoHSPb-FreeRoHS (2015/863/EU) CertificateREACH (SVHC's) DeclarationREACH (SVHC's)Halogen FreeIPC-Material Declaration
4553-PHASE LINE-LOAD VOLT MON/ 19

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