Johnson Controls A421AET-01C Electronic TemperatureJohnson Controls A421AET 01C is a reliable electronic single stage temperature control designed for 120 240 VAC systems. This unit combines precise sensing with rugged protection, delivering dependable performance in demanding environments. Featuring UL Type 4x and IP66 rated enclosure, SPDT switching, a built in cycle timer, and a 0. 25 m (9") temperature sensor, it covers a wide operating range from 40F to 212F. Designed for commercial

Suitable for burner safety and industrial control systems

offering a compact 4-1/4" W x 3" D x 6-3/4" H footprint and straightforward installation into existing gas burner controls

Crafted from sturdy magnesium

efficient airflow

This blower door is built to withstand the rigors of HVAC service

the flame rod measures 12 inches in length and features a 1/2 inch threaded mounting for straightforward installation in compatible assemblies

and restore reliable airflow across seasons

this unit handles demanding loads while delivering dependable operation in daily use

it fits standard wiring configurations and supports quick

This circuit board delivers strong signal integrity

ICP components

Application: Visual system pressure indicator