Your cart is empty.
Your cart is empty.The A421 Series Electronic Temperature Controls are single-stage controls with a single-pole, double-throw (SPDT) output relay. A421 Controls feature a bright backlit LCD with adjustable brightness and a three-button touchpad interface that can be set up to restrict user adjustments. An LED indicates the output relay's On/Off status. Standard A421 Series control modules have simple On and Off temperature settings for heating or cooling, an adjustable anti-short cycle delay, temperature setback, and sensor offset capability. The temperature control range is -40 to 212°F or -40 to 100°C. The A421 controls are available either in Type 1 (NEMA), IP20 (CE), high-impact plastic enclosures suitable for surface or DIN rail mounting or in Type 4X (NEMA), IP67 (CE) watertight, corrosion resistant surface mount enclosures.
Sheldon
Reviewed in Canada on December 27, 2024
Display of temperature being read is great to see and indicator for status removes any questionUsed with relay to control another circuit in my application but has many optionsAdjustable thresholds make it very customizable
sandy young
Reviewed in Canada on October 30, 2023
Easily replaced and programmed as well as much more economical than a remote bulb mechanical thermostat
OCD
Reviewed in Canada on October 2, 2020
This unit is performing flawlessly.Top quality device from a top notch company.
Recommended Products
