Electric Duct Heater Scr Control

Electric reheat coils are an available accessory for use with price single duct and fan powered terminal units.

Electric duct heater scr control.

Price electric coils are factory mounted etl listed to meet electrical safety standards and comply with dual designation csa 236 ul 1995. Indeeco s attention to detail and rigorous testing give worldwide customers premium products that they receive quickly and at a fair price. Upon restoration of power the step sequence resumes. Standalone coils supplied as duct heaters are certified in compliance with ul 1996.

Automatic reset thermal safety switch for primary over temperature protection. A transformer with any overcurrent protection required by ul or the nec to supply the internal control circuit of 120 volts per heater with a step controller for vernier control and 24 volts for all other heaters with scr control. These controls proportionally turn on a percentage of each power line half cycle. Scr power control in depth.

This gives smooth infinitely variable application of power to the heaters. Phase angle fired zero voltage switched and on off control. Our heaters and controls range from standard duct heaters to the most sophisticated custom designed comprehensive systems. Their applications vary from a partial or auxiliary nature to being the major or principal heat source in a building.

Not only does this give maximum control of your heat process but it can extend heater life many times over other control methods. Power and control terminal boards. This duct heater features. Useful for electric reheat and supplemental electric duct heaters.

An electronic step controller provides electronic sequencing control of an electric duct heater up to 12 steps. When interruption of power occurs all stages cycle off. Capacity and stages are dependent on voltage phase and heater dimensions. Scr power controllers are designed for an accurate and cost effective way to modulate electric heat.

Scr pictured solid state relays are used to provide continuous modulation. Fuses to protect each circuit in any heater drawing more than 48 amps. Manual reset thermal safety switch for secondary over temperature protection. Heavy gage g60 construction with hinged access cover.

The scr control can deliver electrical power to heaters in several ways. Since the scr is solid state it.