TVM Series - Voltage Monitoring Relays

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The TVM series provides protection for motors and other sensitive loads. ontinuously measures the voltage of each of the three phases using a microcomputer circuit design that senses under and overvoltage, voltage unbalance, phase loss, and phase reversal. Protection is provided even when regenerated voltages are present. Includes a trip delay to prevent nuisance tripping and a restart delay to prevent short cycling after a momentary power outage.


Operation
Upon application of line voltage, the restart delay begins. The output relay is de-energized during restart delay. Under normal conditions, the output energizes after restart delay. Undervoltage, overvoltage, and voltage unbalance must be sensed for continuous trip delay period before the output is de-energized. The output will not de-energize if a fault is corrected during the trip delay. The restart delay begins as soon as the output relay de-energizes. If the restart delay is completed when the fault is corrected, the output relay will energize immediately. The output relay will not energize if a fault or phase reversal is sensed as 3-phase input voltage is applied.
Reset: Reset is automatic upon correction of a fault.

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)
Termination TypeMounting MethodDimensionsWeight (lbs/g)Dielectric BreakdownHumidityInput AC Line Frequency (Hz)Input Phase SequenceInput TypeLifeOutput Load Rating (VA)Output TypeOvervoltage Reset Voltage (%)Overvoltage Trip Voltage (%)StockCompare
TVM208A100.5S3S208 Vac0.25 in. (6.3 mm) male quick connect terminalsSurface mount with one #8 (M5 x 0.8) screw2 H x 2 W x 1.25 D in. (50.8 x 50.8 x 31.8 mm)0 Kg≥1500 input to output terminals95% non-condensing50 - 100A; B; C3-phase delta or WYE with no connection to neutral10 A resistive @ 125 Vac; 5 A @ 250 Vac; 1/4 hp @ 125 VacIsolated SPDT relay contacts≅-3% of the trip voltage109 - 113% of the adjusted line voltageCheck
TVM460A41S5M460 Vac0.25 in. (6.3 mm) male quick connect terminalsSurface mount with one #8 (M5 x 0.8) screw2 H x 2 W x 1.25 D in. (50.8 x 50.8 x 31.8 mm)0 Kg≥2500 input to output terminals95% non-condensing50 - 100A; B; C3-phase delta or WYE with no connection to neutral10 A resistive @ 240 Vac; 1/4 hp @ 125 Vac; 1/3 hp @ 250 Vac; 277 Vac maxIsolated SPDT relay contacts≅-3% of the trip voltage109 - 113% of the adjusted line voltageCheck
TVM460A75S2M460 Vac0.25 in. (6.3 mm) male quick connect terminalsSurface mount with one #8 (M5 x 0.8) screw2 H x 2 W x 1.25 D in. (50.8 x 50.8 x 31.8 mm)0 Kg≥2500 input to output terminals95% non-condensing50 - 100A; B; C3-phase delta or WYE with no connection to neutral10 A resistive @ 240 Vac; 1/4 hp @ 125 Vac; 1/3 hp @ 250 Vac; 277 Vac maxIsolated SPDT relay contacts≅-3% of the trip voltage109 - 113% of the adjusted line voltageCheck
TVM480A100.5S3S480 Vac0.25 in. (6.3 mm) male quick connect terminalsSurface mount with one #8 (M5 x 0.8) screw2 H x 2 W x 1.25 D in. (50.8 x 50.8 x 31.8 mm)0 Kg≥2500 input to output terminals95% non-condensing50 - 100A; B; C3-phase delta or WYE with no connection to neutral10 A resistive @ 240 Vac; 1/4 hp @ 125 Vac; 1/3 hp @ 250 Vac; 277 Vac maxIsolated SPDT relay contacts≅-3% of the trip voltage109 - 113% of the adjusted line voltageCheck
TVM480A45S5S480 Vac0.25 in. (6.3 mm) male quick connect terminalsSurface mount with one #8 (M5 x 0.8) screw2 H x 2 W x 1.25 D in. (50.8 x 50.8 x 31.8 mm)0 Kg≥2500 input to output terminals95% non-condensing50 - 100A; B; C3-phase delta or WYE with no connection to neutral10 A resistive @ 240 Vac; 1/4 hp @ 125 Vac; 1/3 hp @ 250 Vac; 277 Vac maxIsolated SPDT relay contacts≅-3% of the trip voltage109 - 113% of the adjusted line voltageCheck
TVM230A101S1S
Obsolete: 2020 -10-05
230VAC0.25 in. (6.35mm) male quick connect terminalsSuface mount with one #8 (M5 x 0.8) screw2.00 x 2.00 x 1.25 in. (50.8 x 50.8 x 31.8mm)≅2.8oz (79g)≥1500V RMS input to output terminals95% relative non-condensingABC3-phase delta or wye with no connection to neutralMechanical - 1 x 106; Electrical - 1 x 10510A resistive @ 125VAC; 5A @ 250VAC; 1/4hp @ 125VACIsolated SPDT relay contacts≅-3% of the trip voltage109 - 113% of the adjusted line voltage
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