The 900 Series of products from Hoffman Controls are designed for electric duct heater applications.

Our 900 Series includes single or 3 phase power switches, digital sequencers, and thermostats providing for a one stop shop in heater control.

901-D Multi-Input Logic
901-E Multi-Input Interface Logic
901-HR Series Heating Sequencer
902 and 903 Series Three Phase SCR Controller
904/745 Series Digital Step Controller / Sequencer
905 Series Power Switch
906 Series Electronic Thermostat