'close on fall' means the electrical circuit completes when the negative pressure (vacuum) reaches the designated set point of -

At a 24Vac output

specify the VS series if 15 psig steam duty is required

professional aesthetic

Can I use this blade to replace a 2-blade or 4-blade propeller

Functional Devices RIBX24BA Relay Els PW 17895 'close on fall' means theThe Functional Devices RIBX24BA is a versatile enclosed power relay combined with a high performance integrated current sensor, designed for demanding automation and control environments. This SPDT relay features a 24 VAC DC coil and supports up to a 20 Amp resistive load, making it ideal for managing fractional horsepower motors, lighting circuits, and heavy duty HVAC actuators. The critical advantage of the RIBX24BA is its split core current sensing