Carlo Gavazzi DIA53S72420AF AC Current Monitoring Relay, 2 to 20 A, Self Powered, 17.5 mm, Fast Response

The Carlo Gavazzi DIA53S72420AF is a self powered, 2 wire AC current monitoring relay with a built in current transformer. The monitored cable passes through the 12 mm hole, and the solid state output switches when the current rises above the knob adjusted set point of 2 to 20 A. It is a simple way to confirm that a motor, heater or pump is actually drawing current. This is the fast version, with a reaction time under 50 ms.

DAANET is the authorised Australian distributor for Carlo Gavazzi. We supply the DIA53S72420AF locally and provide technical support to help you select the right current monitoring relay for your application.

Typical applications

• Confirming a motor, pump or fan is running

• Heater and element monitoring

• Overload and jam detection

• Status signals to a PLC

Key specifications

• Manufacturer: Carlo Gavazzi

• Part number: DIA53S72420AF

• Product range: DIA53 current monitoring relays

• Function: 1 phase AC overcurrent monitoring

• Input range: 2 to 20 A AC, built in CT, 12 mm hole

• Max. continuous current: 40 A AC

• Supply: Self powered, 2 wire connection

• Output: NPN/PNP open collector, normally open, max. 100 mA, 40 VDC

• Reaction time: Under 50 ms (fast version)

• Hysteresis: 7 to 13 % of set point

• Frequency range: 45 to 400 Hz

• Housing: 17.5 mm DIN rail

• Degree of protection: IP20

• Operating temperature: minus 20 to 60 °C

• Approvals: UL, CSA, CE

Related part numbers

• DIA53S72420A, 2 to 20 A, standard reaction time

• DIA53S72450A, 5 to 50 A

• DIA53S724100A, 10 to 100 A

Downloads

• DIA53 datasheet (PDF)

• Carlo Gavazzi product page

Need help choosing a current monitoring relay? Contact DAANET to discuss your application.