Electric Infrared Heaters
Control Assemblies for Metal Sheath Heaters
Metal sheath radiant heaters take about two minutes to reach operating temperature and about two minutes to cool down. An Aitken control assembly uses that lag to cycle the heater on and off, holding it at a precise, predetermined output percentage.

How It Works
Percentage Output, Not Just On/Off
Percentage Input Timer
A 30-second cycle timer, driven by a solid state pulsing device, with a control dial calibrated 0–100%.
All-in-One Assembly
Timer, pulsing device, and an on-board transformer are integrated into one dust-tight box — the transformer eliminates the need for a separate dual-voltage feed.
Pre-Wired & Ready
Ships pre-wired with an on/off switch and pilot light. Requires only a three-phase feed through a contactor.
For example: to get 80% heater output, the timer is set to 80%, creating a cycle of 24 seconds energized and 6 seconds off.

Not suitable for use with quartz infrared heaters. These control assemblies are designed for metal sheath radiant heaters only.
Model Range
Seven Capacity Levels
Available across seven capacity levels from 30A to 160A (models N324-A through N1648-A), in three voltage options: 240V, 208V, and 480V. Maximum output ranges from 12.0 KW to 128.0 KW depending on model and voltage.
Contact us with your heater's amperage and voltage and we'll match you with the correct control assembly model.