The dark green spring defines the specific outlet pressure range of 6-16" WC

Featuring a 30 cubic inch molded porous core

A 30A inductive rating provides a higher safety margin for smaller loads

For accurate feedback

Note that this is a "less coil" model

Titus HVAC D21-PS Relay 320788-703 The dark green spring definesThe Titus HVAC D21 PS Relay is an essential electronic interface designed for commercial VAV terminals and electric duct heaters. As a proportional pull signal relay, this component integrates with patented Titus airflow sensors to modulate heater capacity based on real time cubic feet per minute (CFM) flux. This HVAC control relay eliminates the binary limitations of standard on off switches by translating a 0 10 VDC or AC DC pulse signal into