Pressure Difference Relay SPD-302

SPD-302 is intended for the electric circuit switching (opening or closing) at the pressure difference of the operation and external environment.

SPD-302 is factory adjusted by the customer's order to operate at the pressure difference selected within the range from 50 to 2000 hydro tube mm.

SPD-302 is manufactured in two versions:

• SPD-302NO - with normally open contacts, closed when reaching the pre-set value of the measured pressure difference;
• SPD-302NC - with normally closed contacts, open when reaching the pre-set value of the measured pressure difference.

The operation error is max ±196 Pa(±20 hydro tube mm).

Performance:

• DC;
• Active inductive load;
• Voltage - 27 (+7/-5) V;
• Current - Up to 150 mA at the active load.
• Weight - max 0.25 kg.
• Overall dimensions - max 72x92 mm.