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产品介绍
SSAC ECS21BC 电流传感器
ECS21BC - SSAC Current Sensor 24VAC 2 20A 0.5 50s 1s Startup
SSAC
ECS21BC - SSAC Current Sensor 24VAC 2 20A 0.5 50s 1s Startup The ECS Series Family The ECS Series of single-phase AC current sensors is a universal, overcurrent or undercurrent sensing control. Its built-in toroidal sensor eliminates the inconvenience of installing a stand-alone current transformer. Includes onboard adjustments for current sensing mode, trip point, and trip delay. Detects over or undercurrent events like; locked rotor, loss of load, an open heater or lamp load, or proves an operation is taking place or has ended. Operation : Input voltage must be supplied at all times for proper operation. When a fault is sensed throughout the trip delay, the output relay is energized. When the current returns to the normal run condition or zero, the output and the delay are reset. If a fault is sensed and then corrected before the trip delay is completed, the relay will not energize and the trip delay is reset to zero. Adjustment Select the desired function, over or under current sensing. Set the trip point and trip delay to approximate settings. Apply power to the ECS and the monitored load. Turn adjustment and watch the LED. LED will light; turn slightly in opposite direction until LED is off. Adjustment can be done while connected to the control circuitry if the trip delay is set at maximum. To increase sensitivity, multiple turns may be made through the ECS's toroidal sensor. The trip point range is divided by the number of turns through the toroidal sensor to create a new range. When using an external CT, select a 2VA, 0-5A output CT rated for the current to be monitored. Select ECS adjustment range 0. Pass one secondary wire lead through the ECS toroid and connect the secondary leads together. Features : Toroidal through hole wiring 0.5 - 50A trip points Adjustable or factory fixed trip delays Isolated, 10A, SPDT output contacts 5% trip point hysteresis (dead band) Auxiliary Products : Female quick connect: P/N: P1015-13 (AWG 10/12) P/N: P1015-64 (AWG 14/16) P/N: P1015-14 (AWG 18/22) Download the The SSAC Product Line catalog in *.pdf format Download the The ECS Series Datasheet datasheet in *.pdf format
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