Ssac-Symcom ECS21BC

Brand: Littelfuse

Part Number: ECS21BC

Littelfuse® SSAC® Current Sensor Relay, Isolated Electro Mechanical, Series: ECS, 24 VAC, 45/500 Hz Frequency, Over/Undercurrent Sensor, SPDT/(1 Form C) Contact Configuration, Surface Mounting, Male Quick-Connect Terminal, 0.5 to 50 s Trip Delay, 3-1/2 in H x 2-1/2 in W x 1-3/4 in D Dimensions

Additional Description: LTFS-ECS21BC CURRENT SENSOR

Catalog Description: 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.