• 2732-Single-Phase-Over-Under-Current-Monitor

    B2732

    Single Phase Over/Under Current Monitor
    1 - 5A

    The Model 2732 Single Phase Current Monitor is designed to continuously monitor single-phase AC current. It consists of a solid-state sensing circuit driving an internal electromechanical relay. The Model 2732 has two operating modes: over-current sensing or under-current sensing. The operating mode is selected by means of a slide switch on the monitor. When operating voltage is applied, and the current level is correct according to the operating mode, the relay will energize. A fault condition will cause the OVER/UNDER LED on the monitor to illuminate, and the trip delay will begin. If correct current is restored, the relay remains energized. If current is not restored during the delay period, the relay will de-energize and the red TRIP indicator will illuminate. The Model 2732 has three reset configurations: automatic, manual (add jumper), or manual remote (add switch). The standard model, as provided, will reset automatically.

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  • 292-Frequency-Monitor

    B292

    Frequency Monitor

    The Model 292 Frequency Monitor is designed to monitor power line frequency. It is intended for systems where line frequency variations will cause improper operation of electrical equipment. A solid-state sensing circuit drives an internal electromechanical relay which is energized when the line frequency is correct. Operating power is drawn from the same line being monitored.

    The Model 292 is set to the over and/or under frequency trip points using ten binary-coded switches. A frequency variation outside the trip points causes the internal relay to drop out and an appropriate LED indicator to illuminate.

    Applications for the Model 292 include stand-by power plants, portable power supplies, and windmill generators.

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  • 471-Multi-Stage-Alternator

    B471

    Multi-Stage Alternator

    The Model 471 Multi-Stage Alternator is designed to control the operating sequence of multi-stage pumping systems. it can also be used to maintain the desired level of pressure on air compressor systems. Four PUMP SELECT DIP switches located on the front panel allow the alternator to control a single-pump, two-pump, three-pump or four-pump system. Only one switch needs to be set for the total number of pumps in the system. The Model 471 will assure that only the necessary pumps are operating, and that the run time for each pump is approximately equal. Pumps are sequenced first-on and first-off. If the pumping demand requires only one pump at a time, the alternator will start the next pump in sequence each time an input switch is closed. Input switches may be float switches, pressure switches, flow switches, etc. , as required by the application.

    Potential uses for the Model 471 include water supply systems, sewage disposal plant systems, storage tank filling systems, air compressor systems, irrigation and water recycling systems.

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  • 200-3-Phase-Voltage-Unbalance-Monitor

    C200

    3-Phase Voltage Unbalance Monitor

    The Model 200 3-Phase Voltage Unbalance Monitor is designed to continuously monitor a three-phase line for unbalanced voltage conditions.

    This device will only energize the relay if an unbalance exists. Zero volts on all three phases is considered a balanced condition. This allows the Model 200 to be used with shunt breakers, so that the breaker can shut off the main power without tripping the monitor.

    The solid-state sensing circuit drives an internal electromechanical relay. Indicator lights on the monitor show when the voltage balance is within an acceptable range; when an unbalance exists; and when the relay is actually tripped.

    When an acceptable voltage balance is reapplied, the Model 200 will automatically reset the relay.

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  • 259-3-Phase-Monitor

    C259

    3-Phase Monitor

    The Model 259 3-Phase Monitor is designed to protect individual 3-phase equipment and motors, or in conjunction with shunt trip breakers. When correct voltage and phase rotation is applied, an internal DPDT relay energizes.

    A fault condition (phase loss, phase reversal, or low voltage) drops out the relay and lights the LED failure indicator. The Model 259 will detect a phase loss condition even when regenerative voltage is present.

    The Model 259 may be used with Wye or Delta systems and requires no neutral connection. Standard operating ranges are available from 120 to 575 VAC, 60Hz and 380 VAC, 50Hz

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  • 2594-3-Phase-Monitor

    C2594

    3-Phase Monitor

    The Model 2594 3-Phase Monitor is designed for use with applications which require high control voltage (up to 600VAC). The Model 2594 protects 3-phase equipment and motors from phase loss, phase reversal and low voltage. When the correct voltage and phase rotation is applied, an internal DPDT relay energizes.

    A fault condition drops out the relay and the FAILURE INDICATOR LED illuminates. When the existing fault is corrected the unit will automatically reset. The Model 2594 can detect a phase loss condition even when regenerative voltage is present. It may be used with Wye or Delta systems; no neutral connection is required.

    Standard operating ranges are available from 120 to 575 VAC, 60Hz, and 380VAC, 50Hz.

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  • 263-3-Phase-Monitor

    C263

    3-Phase Monitor

    The Model 263 continuously monitors 3-phase power systems for phase loss, low voltage and phase reversal. The monitor consists of a solid-state sensing circuit, driving an electromechanical relay.

    Applying correct voltage and phase rotation energizes the relay. When properly adjusted, a fault condition will cause the relay to de-energize, even when regenerated voltage is present.

    When the fault is corrected, the Model 263 automatically resets. A manual reset version and an option for gold-plated contacts are also available.

    The Model 263 does not require a neutral connection, and can be used on Wye or Delta systems. Each of the five different voltage ranges is adjustable to allow the monitor to be set for existing conditions. NORMAL and TRIP LED indicators are provided to aid in adjustment and system troubleshooting.

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  • 2638-3-Phase-Monitor

    C2638

    3-Phase Monitor

    The Model 2638 3-Phase Monitor combines a 3-phase monitor with a line voltage and phase sequence indicator. Like other Time Mark Monitors, the Model 2638 senses phase loss, phase reversal and low voltage.

    When power and phasing are correct, the internal relay energizes. LED indicators will show that all phases are present, and the direction of phase rotation.

    When a fault occurs, the monitor trips its relay and indicates which phase is lost, or, if a reversal is present. This allows you to automatically protect your equipment by correcting the appropriate fault condition.

    The Model 2638 will automatically reset when correct power is restored. It is available in 208/240 VAC, 480 VAC, or 380 VAC/50 Hz.

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  • 263-3-Phase-Monitor

    C263M

    3-Phase Monitor

    The Model 263 continuously monitors 3-phase power systems for phase loss, low voltage and phase reversal. The monitor consists of a solid-state sensing circuit, driving an electromechanical relay.

    Applying correct voltage and phase rotation energizes the relay. When properly adjusted, a fault condition will cause the relay to de-energize, even when regenerated voltage is present.

    When the fault is corrected, the Model 263 automatically resets. A manual reset version and an option for gold-plated contacts are also available.

    The Model 263 does not require a neutral connection, and can be used on Wye or Delta systems. Each of the five different voltage ranges is adjustable to allow the monitor to be set for existing conditions. NORMAL and TRIP LED indicators are provided to aid in adjustment and system troubleshooting.

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  • 263-3-Phase-Monitor

    C263SG

    3-Phase Monitor

    The Model 263 continuously monitors 3-phase power systems for phase loss, low voltage and phase reversal. The monitor consists of a solid-state sensing circuit, driving an electromechanical relay.

    Applying correct voltage and phase rotation energizes the relay. When properly adjusted, a fault condition will cause the relay to de-energize, even when regenerated voltage is present.

    When the fault is corrected, the Model 263 automatically resets. A manual reset version and an option for gold-plated contacts are also available.

    The Model 263 does not require a neutral connection, and can be used on Wye or Delta systems. Each of the five different voltage ranges is adjustable to allow the monitor to be set for existing conditions. NORMAL and TRIP LED indicators are provided to aid in adjustment and system troubleshooting.

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  • 263-3-Phase-Monitor

    C263SGM

    3-Phase Monitor

    The Model 263 continuously monitors 3-phase power systems for phase loss, low voltage and phase reversal. The monitor consists of a solid-state sensing circuit, driving an electromechanical relay.

    Applying correct voltage and phase rotation energizes the relay. When properly adjusted, a fault condition will cause the relay to de-energize, even when regenerated voltage is present.

    When the fault is corrected, the Model 263 automatically resets. A manual reset version and an option for gold-plated contacts are also available.

    The Model 263 does not require a neutral connection, and can be used on Wye or Delta systems. Each of the five different voltage ranges is adjustable to allow the monitor to be set for existing conditions. NORMAL and TRIP LED indicators are provided to aid in adjustment and system troubleshooting.

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  • 264-3-Phase-Monitor

    C264

    3-Phase Monitor

    The Model 264 3-Phase Monitor continuously monitors 3-phase Wye or Delta systems for abnormal conditions. The solid-state electronic sensing circuit drives two separate single pole relays, one normally open and the other normally closed. An adjustable trip delay reduces or eliminates nuisance tripping caused by momentary voltage fluctuations on motor start-up.

    Standard versions are 120V, 208/240V, 480V and 575V at 60Hz; and 380V at 50Hz. Voltage ranges are sufficiently wide to allow for proper adjustment to existing conditions. Both TRIP and NORMAL indicators are provided to aid in trip point adjustments and system troubleshooting.

    The Model 264 is not sensitive to line current and can be used with any size motor or compressor.

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