Circuit & System Protection


Electronic over-current protector

14 June 2017 Circuit & System Protection

The model ESX10-Sxxx extends ETA’s product group of electronic over-current protection devices for 24 V d.c. applications. At a width of only 12,5 mm, it provides selective protection through a combination of active electronic current limitation in the event of a short circuit and overload disconnection typically from 1,2 times rated current. The ESX10-S is a plug-in type, DIN-rail mounted device that allows quick and easy installation for groups of devices with several circuits.

Maximum possible over-current is limited to typically 1,4 times rated current. This allows switching on capacitive loads of up to 20 000 µF, but a disconnection will only be effected in the event of an overload or short circuit. For adjustment to the load conditions the current rating can be selected by means of a rotary switch from 1 A to 10 A.

Status and failure indication is by means of a multi-coloured LED, an integral short circuit proof status output (single or group alarms) or via a potential-free relay contact (change-over contact). Remote actuation is possible via a remote reset signal. The manual ON/OFF switch on the device itself allows start-up of certain individual load circuits.

As soon as the ESX10-S detects overload or short circuit in its load circuit, it blocks the load output transistor and disconnects the current flow in the faulty circuit. After remedy of the failure, the load output is re-activated by an electronic reset signal or manually by actuating the ON/OFF switch on the device

For more information contact Radél, +27 (0)11 888 6696, [email protected], www.radel.co.za



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