Littelfuse, Inc. Monitor - Relay Output ECS40AC

The ECS40AC is a single-phase AC current sensor designed for overcurrent and undercurrent monitoring. It operates at an input voltage of 120VAC and features adjustable trip points ranging from 0.5 to 5A, with a trip delay adjustable between 0.150 to 7 seconds. The device utilizes a built-in toroidal sensor, eliminating the need for a separate current transformer and providing isolation from the monitored circuit. The relay output is a single-pole double-throw (SPDT) type, rated for 10A resistive loads at 240VAC. The ECS40AC is encapsulated for protection against environmental factors such as shock, vibration, and humidity. It is suitable for applications requiring monitoring of conditions like locked rotor, loss of load, or open heater/lamp loads. The device also includes features for easy adjustment of sensitivity and trip settings, making it versatile for various applications. With a response time of less than 75ms and a wide operating temperature range of -40¬8C to 60¬8C, the ECS40AC is designed for reliable performance in demanding environments.