ECSW Series - Current Sensor

Littelfuse Current Monitoring Relays Transducers
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The ECSW Series of single-phase, AC window, current sensors includes adjustable overcurrent and undercurrent trip points. Detects locked rotor, jam, loss of load, an open heater or lamp load, a broken belt, or loss of suction. LED’s aid in trip point adjustment and provide fault indication. The built-in toroidal sensor eliminates the need for an external current transformer. The output can be electrically latched after a fault, or automatically reset. Remote resetting of a latched output by removing input voltage. The unit includes switch selectable zero current detection and normally de-energized or energized output operation. Time delays are included to improve operation and eliminate nuisance tripping.


See datasheet for operation detail.

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)
Output
Form
Time Delay RangeTermination TypeMounting MethodDimensionsWeight (lbs/g)Compare
ECSW3LABT24VDCIsolated SPDT0.15 - 7s adjustable0.197 in. (5 mm) terminal blocks for up to #12 (3.2 mm2) AWG wireSurface mount with two #6 (M3.5 x 0.6) screws3.50 x 2.50 x 1.75 in. (88.9 x 63.5 x 44.5 mm)≅6.4oz (181g)
ECSW4HBHT120VACIsolated SPDT0.5 - 50s adjustable0.197 in. (5 mm) terminal blocks for up to #12 (3.2 mm2) AWG wireSurface mount with two #6 (M3.5 x 0.6) screws3.50 x 2.50 x 1.75 in. (88.9 x 63.5 x 44.5 mm)≅6.4oz (181g)
ECSW4LADT120VACIsolated SPDT0.15 - 7s adjustable0.197 in. (5 mm) terminal blocks for up to #12 (3.2 mm2) AWG wireSurface mount with two #6 (M3.5 x 0.6) screws3.50 x 2.50 x 1.75 in. (88.9 x 63.5 x 44.5 mm)≅6.4oz (181g)
ECSW4LBHT120VACIsolated SPDT0.5 - 50s adjustable0.197 in. (5 mm) terminal blocks for up to #12 (3.2 mm2) AWG wireSurface mount with two #6 (M3.5 x 0.6) screws3.50 x 2.50 x 1.75 in. (88.9 x 63.5 x 44.5 mm)≅6.4oz (181g)
ECSW4MACT120VACIsolated SPDT0.15 - 7s adjustable0.197 in. (5 mm) terminal blocks for up to #12 (3.2 mm2) AWG wireSurface mount with two #6 (M3.5 x 0.6) screws3.50 x 2.50 x 1.75 in. (88.9 x 63.5 x 44.5 mm)≅6.4oz (181g)
ECSW4MBGT120VACIsolated SPDT0.5 - 50s adjustable0.197 in. (5 mm) terminal blocks for up to #12 (3.2 mm2) AWG wireSurface mount with two #6 (M3.5 x 0.6) screws3.50 x 2.50 x 1.75 in. (88.9 x 63.5 x 44.5 mm)≅6.4oz (181g)
ECSW4MBHT120VACIsolated SPDT0.5 - 50s adjustable0.197 in. (5 mm) terminal blocks for up to #12 (3.2 mm2) AWG wireSurface mount with two #6 (M3.5 x 0.6) screws3.50 x 2.50 x 1.75 in. (88.9 x 63.5 x 44.5 mm)≅6.4oz (181g)
ECSW6MBHT230VACIsolated SPDT0.5 - 50s adjustable0.197 in. (5 mm) terminal blocks for up to #12 (3.2 mm2) AWG wireSurface mount with two #6 (M3.5 x 0.6) screws3.50 x 2.50 x 1.75 in. (88.9 x 63.5 x 44.5 mm)≅6.4oz (181g)