TVM Series – Voltage Monitor シリーズ - Littelfuse TVM Voltage Monitoring Relays Provide Superior Protection

シリーズ： TVM Series – Voltage Monitor
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The TVM series is a three-phase voltage monitor that provides protection for motors and other sensitive loads. It continuously 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. This monitor includes a trip delay to prevent nuisance tripping and a restart delay to prevent short cycling after a momentary power outage.

動作
Upon application of line voltage, the restart delay begins, and the output relay is de-energized. Under normal conditions, the output energizes after restart delay. Undervoltage, overvoltage, and voltage unbalance must be sensed for a 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 three-phase input voltage is applied. Reset is automatic upon correction of a fault.

LED Operation
The LED flashes green during the restart delay, then glows green when the output energizes. It flashes red during the trip delay, then glows red when the output de-energizes. It flashes red/green if phase reversal is sensed.

特長：

  • Proprietary microcontroller-based circuitry
  • Compact design measures 2 in. (50.8 mm) square
  • LED 表示
  • Encapsulated

製品関連文書

技術的なご質問

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商品仕様、各種認証情報、在庫のご確認、部品のご注文は以下をご覧ください

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 (%)StockSamplesCompare
カタログ番号入力
電圧 (V)		端子タイプ取付け方式寸法重量 (ポンド / g)Dielectric Breakdown湿度Input AC Line Frequency (Hz)Input Phase SequenceInput TypeLifeOutput Load Rating (VA)出力タイプOvervoltage Reset Voltage (%)Overvoltage Trip Voltage (%)在庫サンプル比較する
TVM460A41S5M 460 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 voltage確認 Order
TVM460A75S2M 460 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 voltage確認 Order
TVM480A100.5S3S 480 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 voltage確認 Order
TVM480A45S5S 480 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 voltage確認 Order
TVM208A100.5S3S
製造中止：2020 -10-07		208V AC0.25 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 voltage確認
TVM230A101S1S
製造中止：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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