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

シリーズ： DLM Series – Voltage Monitor
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The DLM (DLMU) series is a universal voltage, three-phase voltage monitor. This monitor continuously measures the voltage of each of the three phases with microcontroller accuracy and compares the value to preset trip points. It separately senses phase reversal and loss; over, under and unbalanced voltages; and over or under frequency.

Protection is ensured during periods of large average voltage fluctuations or when regenerated voltages are present. The unit trips within 200 ms when phase loss is detected. Adjustable time delays are included to prevent nuisance tripping and short cycling of sensitive equipment. The isolated, 10 A, SPDT, and 2 A alarm output relay contacts trip when a phase voltage exceeds the trip limits for the trip delay. Nominal line voltage, voltage unbalance, and time delays are knob adjustable. The phase loss setpoint and the acceptable frequency range are fixed. Both delta and wye systems can be monitored - no connection to neutral is required.

See datasheet for operation details.

特長：

  • Proprietary microcontroller-based circuitry
  • Universal line voltage range
  • DIN-rail (35mm) or surface mounting
  • LED 表示
  • User-adjustable time delays

製品関連文書

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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)HumidityInput AC Line Frequency (Hz)Input Phase SequenceInput TypeInput Voltage Maximum (V)Output Load Rating (VA)Output TypeOver/Under Frequency (%)Overvoltage 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)湿度Input AC Line Frequency (Hz)Input Phase SequenceInput Type最大入力電圧（V）Output Load Rating (VA)出力タイプOver/Under Frequency (%)Overvoltage Reset Voltage (%)Overvoltage Trip Voltage (%)在庫サンプル比較する
DLMHBRAAA 500 - 600 VacScrew terminal with captive wire clamps for up to #14 AWG (2.5 mm²) wireSurface mount with two #8 (M4 x 0.7) screws or snap on 35mm DIN rail4.33 H x 2.95 W x 1.97 D in. (110 x 75 x 50 mm)0 Kg95% non-condensing50 / 60A; B; C; L1; L2; L33-phase delta or WYE with no connection to neutral60010 A resistive @ 240 Vac; 8 A resistive @ 277 Vac; NO-1/4 hp @ 120 Vac; 1/3 hp @ 240 VacIsolated electromechanical relay±4%; Reset ±3%; 50 / 60 Hz≅-3% of the trip voltage109 - 113% of the adjusted line voltage確認 Order
DLMUBLAAA 200 - 480 VacScrew terminal with captive wire clamps for up to #14 AWG (2.5 mm²) wireSurface mount with two #8 (M4 x 0.7) screws or snap on 35mm DIN rail4.33 H x 2.95 W x 1.97 D in. (110 x 75 x 50 mm)0 Kg95% non-condensing240 V ac: 50/60; 380 V ac: 50; 480 V ac: 60A; B; C; L1; L2; L33-phase delta or WYE with no connection to neutral55010 A resistive @ 240 Vac; 8 A resistive @ 277 Vac; NO-1/4 hp @ 120 Vac; 1/3 hp @ 240 VacIsolated electromechanical relay±4%; Reset ±3%; 50 / 60 Hz≅-3% of the trip voltage109 - 113% of the adjusted line voltage確認 Order
DLMUBNAAN 200 - 480 VacScrew terminal with captive wire clamps for up to #14 AWG (2.5 mm²) wireSurface mount with two #8 (M4 x 0.7) screws or snap on 35mm DIN rail4.33 H x 2.95 W x 1.97 D in. (110 x 75 x 50 mm)0 Kg95% non-condensing240 V ac: 50/60; 380 V ac: 50; 480 V ac: 60A; B; C; L1; L2; L33-phase delta or WYE with no connection to neutral55010 A resistive @ 240 Vac; 8 A resistive @ 277 Vac; NO-1/4 hp @ 120 Vac; 1/3 hp @ 240 VacIsolated electromechanical relay±4%; Reset ±3%; 50 / 60 Hz≅-3% of the trip voltage109 - 113% of the adjusted line voltage確認 Order
DLMUBRAAA 200 - 480 VacScrew terminal with captive wire clamps for up to #14 AWG (2.5 mm²) wireSurface mount with two #8 (M4 x 0.7) screws or snap on 35mm DIN rail4.33 H x 2.95 W x 1.97 D in. (110 x 75 x 50 mm)0 Kg95% non-condensing240 V ac: 50/60; 380 V ac: 50; 480 V ac: 60A; B; C; L1; L2; L33-phase delta or WYE with no connection to neutral55010 A resistive @ 240 Vac; 8 A resistive @ 277 Vac; NO-1/4 hp @ 120 Vac; 1/3 hp @ 240 VacIsolated electromechanical relay±4%; Reset ±3%; 50 / 60 Hz≅-3% of the trip voltage109 - 113% of the adjusted line voltage確認 Order
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