The EFCA-40 with Auxiliary contacts; Series: CECAO; Leads: screw; Mounting: front manufactured by ETI Polam is a 40A current-limiting device used to protect circuit wiring, motors, and other electrical equipment from excess current. The EFCA-40 is equipped with two auxiliary contacts, which are normally open, and act as a sensing or logic switch. The contacts can be used to control and start/stop the circuit operation, for example to trip the power supply in emergency situations. The contacts are activated by a switch on the device, or externally by an option of using a normally closed (NC) contact. The EFCA-40 is also equipped with two DIN rail-mounted screw clamps for system connection, which are adjustable from 25 A to 40A. Its mounting type is front and it supports screw leads. This device is suitable for a wide variety of purposes, including protection against short-circuits, overloads, and energization of the circuits. It is also suitable for use in systems with single-phase or three-phase supplies.