The Macromatic CAH05A6AF is a current sensing relay. This encapsulated relay has an input voltage of 12V DC. It monitors for over or undercurrent faults and has an output of 10A SPDT. It checks AC current, with an adjustable range of 0.5-5A and a trip time delay of 0.15-7 seconds. There is a 3 second sensing time delay on startup. The integrated current transformer promotes better access and sensitivity, as the wire can be looped around more than once. The encapsulated housing is intended for use in harsher environments. Note: Image is an approximation. Actual part may differ.
Specifications
The user is able to choose whether the relay checks for over or under current conditions using a selector switch. The relay starts monitoring for possible faults once the input voltage is introduced. For an overcurrent situation, it occurs when the AC current goes over the set Fault Trip Current for longer than the adjusted time delay. The relay energizes after the time delay and stays energized until the current goes below the reset level. For an undercurrent fault, the current goes below the set Fault Trip Current for longer than the time delay. Again, the relay energizes after the time delay and will de-energize once the current goes above the reset level. The CAH05A6AF has an LED which glows red to show when a fault is found. Has pilot duty rating. It is perfect for applications such as process control, checking for locked rotor or load loss, or open heater or lamp.
Macromatic CAH Series Relay Installation Manual