DESCRIPTION

The device is a timer module that is activated by an external pushbutton (pneumatic, piezoelectric or isolated) and maintains the closed contact of an internal relay, the time set in the front potentiometer.

The module can be programmed as a switch, function set/reset by adjusting the potentiometer front below 1/4 of its total travel. Thus a pulse activates the relay, the next turns it off and so on.

This circuit is intended to drive a water pump, a lamp, etc… by an external button.

FEATURES

• Set time from 10 seconds to 4 minutes.
• Power supply from 9 up to 28v DC.
• Protection against reverse polarity power input.
• Input for potential-free contact.
• Output relay with NO contact, 5A/250VAC or 5A/30VDC.
• Box-din rail 18mm wide.