Pros, Join Our TradeMaster Program!
Description
Low-Voltage Type 4X Electronic Temperature Control: Type 4X (NEMA), IP66 watertight enclosure for surface-mount applications. Rated for 24 VAC Class 2, Safety Extra Low Voltage. Includes an A99BB- 200C temperature sensor with 6.6 ft (2.0 m) cable.

The A421 Series controls are single stage, electronic temperature controls with a single-pole, double-throw (SPDT) output relay. The controls feature an adjustable backlit LCD for viewing the temperature and status of other functions, and a three-button touchpad for setup and adjustment. An LED indicates the On/Off status of the output relay.

The A421 controls are available in low voltage 24 VAC and high voltage 120 or 240 VAC models, which provide options for most refrigeration and HVAC applications.

The A421 controls provide heating or cooling control, sensor offset, temperature setback, adjustable anti-short cycle delay, and a restricted user adjustment mode. The temperature units can be displayed in °F or °C. The temperature adjustment range is -40 to 212°F or -40 to 100°C.

The A421 controls are available in Type 1/IP20 high-impact plastic enclosures suitable for surface or DIN rail mounting and Type 4X/IP66 watertight, corrosion-resistant surface mount enclosures.

Some A421 Series control models are equipped with factory-installed power cords. The power cords provide convenient plug-in connection and control of 120 VAC heating and cooling equipment
Read more
Specs
Product Type:
Temperature Control
Min Temp (F):
-40°F
Max Temp (F):
212°F
Lead Wire Length:
7 Ft. 7-1/5"
Enclosure Type:
NEMA-4X
Voltage:
24v
Application:
Temperature Control
×
Questions?
Speak with a real person who will go out of their way to help!
Open Now:
Monday – Thursday
8am–7:45pm ET
Friday
8:30am–7:45pm ET

1 Video

    Product Reviews

    Product Q&A

    Add-on Item

    This item is cost-prohibitive to ship on its own but is available to ship with orders over $200.

    Why don't we show the price of this item?

    We try to always offer you the lowest prices possible, but some manufacturers require that we only show these low prices once you take further action.

    To see the price, simply add the item to your cart or sign in.