Carlo Gavazzi DIA53S72420A AC Current Monitoring Relay, 2 to 20 A, Self Powered, 17.5 mm

The Carlo Gavazzi DIA53S72420A 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.

DAANET is the authorised Australian distributor for Carlo Gavazzi. We supply the DIA53S72420A 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: DIA53S72420A

• 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 300 ms

• 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

• DIA53S72420AF, 2 to 20 A, fast 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.