High or Low Limit Aquastat, 40°F to 180°F Range Zoom

High or Low Limit Aquastat, 40°F to 180°F Range


Brand: Honeywell

Qty Price
/ each
$315.80 / box (4 units x $78.95)
In Stock! Ships in 24-48 Hours
(52 Available)



Application: High Limit
Low Limit
Bulb Size: 3/8" x 2-7/8"
Capillary Length: 3"
Switch Action: Contacts Break on Temp Rise
Electrical Rating: 0.25 A @ 0.25 to 12 Vdc
5.1A @ 240 Vac
8A @ 120 Vac
Electrical Ratings (ALR): 30.6A @ 240 Vac
48A @ 120 Vac
Max Temp Differential: 2°F
Max Ambient Temp (°F): 150 F
Height: 5-5/8"
Width: 2"
Depth (Inches): 2-1/8"
Well Included: No
Mount: Horizontal
Temperature Range (F): 40°F to 180°F

Description for Honeywell L4006A1959

Aquastat+ Controllers are immersion type devices for limiting or regulating the temperature of liquids in boilers, storage tanks, and other applications where temperature control is required.


  • Totally enclosed Micro Switch+ snap-acting switches operate on temperature rise to setpoint.
  • Visible control point scale and external adjustment screw permit easy setting.
  • Horizontal or vertical insertion of the sensing element.
  • Direct or well immersion of the sensing element.
  • Models available for strap-on mounting.
  • Remote bulb model may be used to sense air temperature in ducts and in outside air sensing applications.
  • TRADELINE models include heat-conductive compound.
  • Select models have wells.

High or Low Limit Aquastat, 40°F to 180°F Range


by PowerReviews
HoneywellHigh or Low Limit Aquastat, 40°F to 180°F Range

(based on 1 review)

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Reviewed by 1 customer

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did the job,.....but the adjustment slot

By al

from syracuse ny

Verified Buyer



      Best Uses

        Comments about High or Low Limit Aquastat, 40°F to 180°F Range:

        you have to use a pocket screw driver to adjust the tempeture and the window was not aligned very good.....otherwise it is okay....

        • Primary use:
        • Business

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        • High or Low Limit Aquastat, 40°F to 180°F Range


          what well goes with this product?
          Asked on 10/4/2012 by mike from st louis

          1 answer

          • CUSTOMER CARE


            This aquastat works with 121371A and 121371B wells.

            Answered on 10/23/2012 by PexSupply Staff from NY
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