LLC Series – Liquid Level Controls シリーズ - Littelfuse LLC Liquid Level Controls Provide Superior Protection

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The LLC series provides dual-probe conductive liquid level control in a convenient, octal plug-in package. This unit is used to control liquid pumping operations in pump-up or pump-down applications. Models are available for fixed-fill or drain operation. Isolated, pulsed dc voltage on the probes prevents electrolytic plating. Less than 1 mA of current is set to sense the presence of conductive liquid between the probes and common.調節可能なユニットでは感度が調節できるため、浮遊しているごみや形成物質による誤作動がありません。

動作
Drain (pump-down mode): When the liquid level rises and touches the high-level probe, the output relay and LED energize and remain energized until the liquid level falls below the low-level probe. The output relay and LED de-energize and remain de-energized until the liquid rises and touches the high-level probe.

Fill (pump-up mode): When the liquid level falls below the low-level probe, the output relay and LED energize and remain energized until the liquid level rises and touches the high-level probe. The output relay and LED de-energize and remain de-energized until the liquid level again falls below the low-level probe.

特長:

  • Unique probe protection logic
  • LED status indicators
  • Isolated 5 A SPDT contacts

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)
Output
Form
Termination TypeMounting MethodDimensionsWeight (lbs/g)Control TypeInput AC Line Frequency (Hz)Input Tolerance (%)Output Load Rating (VA)Output TypeResponse Time (ms)Sense Resistance ToleranceSense Resistance (Ohms)Sense VoltageStockSamplesCompare
カタログ番号入力
電圧 (V)
出力
フォーム
端子タイプ取付け方式寸法重量 (ポンド / g)Control TypeInput AC Line Frequency (Hz)Input Tolerance (%)Output Load Rating (VA)出力タイプ応答時間(ms)Sense Resistance Tolerance感知抵抗(オーム)Sense Voltage在庫サンプル比較する
LLC52AA 24 Vac絶縁 SPDTOctal 8-pin plug-inPlug-in socket3.01 H x 2.39 W x 1.78 D in. (76.5 x 60.7 x 45.2 mm)0 KgResistance sensing for high and low level detection of conductive liquids50 / 60-0.355 A resistive @ 240 Vac; 1/10 hp @ 240 VacElectromechanical relayDebounce time delay <1 s1 kΩ ±500; at low end; 100 kΩ; ±25%; 0% at high endAdjustable to 100Pulsed DC at probe terminals確認 Order
LLC52BA 24 Vac絶縁 SPDTOctal 8-pin plug-inPlug-in socket3.01 H x 2.39 W x 1.78 D in. (76.5 x 60.7 x 45.2 mm)0 KgResistance sensing for high and low level detection of conductive liquids50 / 60-0.355 A resistive @ 240 Vac; 1/10 hp @ 240 VacElectromechanical relayDebounce time delay <1 s1 kΩ ±500; at low end; 100 kΩ; ±25%; 0% at high endAdjustable to 100Pulsed DC at probe terminals確認 Order
LLC54AA 120 Vac絶縁 SPDTOctal 8-pin plug-inPlug-in socket3.01 H x 2.39 W x 1.78 D in. (76.5 x 60.7 x 45.2 mm)0 KgResistance sensing for high and low level detection of conductive liquids50 / 60-0.35 A resistive @ 240 Vac; 1/10 hp @ 240 VacElectromechanical relayDebounce time delay <1 s1 kΩ ±500; at low end; 100 kΩ; ±25%; 0% at high endAdjustable to 100Pulsed DC at probe terminals確認 Order
LLC54AAS 120 Vac絶縁 SPDTOctal 8-pin plug-inPlug-in socket3.01 H x 2.39 W x 1.78 D in. (76.5 x 60.7 x 45.2 mm)0 KgResistance sensing for high and low level detection of conductive liquids50 / 60-0.35 A resistive @ 240 Vac; 1/10 hp @ 240 VacElectromechanical relayDebounce time delay <1 s1 kΩ ±500; at low end; 100 kΩ; ±25%; 0% at high endAdjustable to 100Pulsed DC at probe terminals確認 Order
LLC54AF10 120 Vac絶縁 SPDTOctal 8-pin plug-inPlug-in socket3.01 H x 2.39 W x 1.78 D in. (76.5 x 60.7 x 45.2 mm)0 KgResistance sensing for high and low level detection of conductive liquids50 / 60-0.35 A resistive @ 240 Vac; 1/10 hp @ 240 VacElectromechanical relayDebounce time delay <1 s±10% or 500 Ω whichever is greater10 fixedPulsed DC at probe terminals確認 Order
LLC54BA 120 Vac絶縁 SPDTOctal 8-pin plug-inPlug-in socket3.01 H x 2.39 W x 1.78 D in. (76.5 x 60.7 x 45.2 mm)0 KgResistance sensing for high and low level detection of conductive liquids50 / 60-0.35 A resistive @ 240 Vac; 1/10 hp @ 240 VacElectromechanical relayDebounce time delay <1 s1 kΩ ±500; at low end; 100 kΩ; ±25%; 0% at high endAdjustable to 100Pulsed DC at probe terminals確認 Order
LLC54BAS 120 Vac絶縁 SPDTOctal 8-pin plug-inPlug-in socket3.01 H x 2.39 W x 1.78 D in. (76.5 x 60.7 x 45.2 mm)0 KgResistance sensing for high and low level detection of conductive liquids50 / 60-0.35 A resistive @ 240 Vac; 1/10 hp @ 240 VacElectromechanical relayDebounce time delay <1 s1 kΩ ±500; at low end; 100 kΩ; ±25%; 0% at high endAdjustable to 100Pulsed DC at probe terminals確認 Order
LLC56AA 230 Vac絶縁 SPDTOctal 8-pin plug-inPlug-in socket3.01 H x 2.39 W x 1.78 D in. (76.5 x 60.7 x 45.2 mm)0 KgResistance sensing for high and low level detection of conductive liquids50 / 60-0.35 A resistive @ 240 Vac; 1/10 hp @ 240 VacElectromechanical relayDebounce time delay <1 s1 kΩ ±500; at low end; 100 kΩ; ±25%; 0% at high endAdjustable to 100Pulsed DC at probe terminals確認 Order
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