Pressure Difference Relay SPD-303

SPD-303 is intended for the electric circuit switching (opening or closing) at the pressure difference of the operation and external environment.

SPD-303 is manufactured in two versions, factory adjusted by the customer's order to operate at the pressure difference selected from the ranges specified in the table below.

Maximum operation error:

• SPD-303 - ±196 Pa(±20 hydro tube mm);
• SPD-303-1 - ±4.9kPa(±0.05 kgs/cm²).

Performance:

• DC;
• Active, inductive load;
• Voltage - 27 (+7/-5) B;
• Current at the active load - up to 150 mA.
• Weight - max 0.4 kg.
• Overall dimensions:

SPD-303 - max 71x71x105 mm;

SPD-303-1 - max 71x71x115 mm.