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Features The 455’s universal range from 190-480VAC 50/60 Hz provides the versatility needed to handle global 455-575 applications. 455-480R Four adjustment pots 455-575R provide versatility for a variety of applications. Three-Phase Both load and line-side Voltage Monitors monitoring provides • contactor protection.
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455, 455-575, 455-480R, 455-575R Three-Phase Voltage Monitors Specifications • Operating Points VOLT. ADJ. RESTART (VAC) (SEC) • 190-480 VAC, 3Ø, 50/60 HZ IR IR LINK LINK MODEL 455 Special Options 2.900" OVER PHASING UNDER (73.66) VOLT. FAULT VOLT. UNBALANCE TRIP TRIP (NEMA %) DELAY (SEC)
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INSTALLATION INSTRUCTIONS FOR SYMCOM’S MOTORSAVER MODEL 455 BE SURE POWER IS DISCONNECTED PRIOR TO INSTALLATION!! FOLLOW NATIONAL, STATE AND LOCAL CODES! 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.
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SETTINGS 1. LINE VOLTAGE ADJUSTMENT: Rotate the LINE VOLTAGE ADJUSTMENT to the nominal three-phase line voltage feeding the motor to be protected. The Model 455 will automatically sense whether it is connected to a 200V or 400V power system. 2. RESTART delay: Rotate the RESTART delay to the desired position.
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TROUBLESHOOTING INDICATOR LIGHTS a t l a t l a t l r e t a t l a t l i t t t l u , r o e i l . r e n i l t i n t r a o i t i g r...
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SPECIFICATIONS MODEL 455 3-Phase Line Voltage 190 - 480 VAC (475 - 600 VAC Optional) Frequency 50* - 60 Hz Operating Points Low Voltage (% of set point) Trip 90% ± 1% Reset 93% ± 1% High Voltage (% of set point) Trip 110% ±...
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