479 East 186th Street Bronx, N.Y.  10458

Monday - Friday 7am-5pm  Saturday 8am-3pm

Price: $115.00

    Item #: L4006A1967
    Availability: In stock
    Usually ships In 1-2 Business days
    In stock Quantity: 0


    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. Honeywell's L4006 are used in applications that utilize the existing wells


    • Totally enclosed Micro Switchâ„¢ 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.
    • UL limit rated device.

    Product Specifications

    Hazmat Information
    UN 1294, TOLUENE, 3, II
    High or Low limit
    Dimensions (in.)
    Case--5 5/8 in. high x 2 in. wide x 2 1/8 in. deep
    Dimensions (mm)
    Case--143 mm high x 51 mm wide x 54 mm deep
    Temperature Range (F)
    Maximum--150 F
    Temperature Range (C)
    Maximum--66 C
    1/2 in. well - 123869A; Stop factory-set at 240 F (116 C)
    Horizontal or Vertical
    Electrical Ratings
    Millivolt--0.25 A @ 0.25 to 12 Vdc; At Full Load-- 8A @ 120 Vac: 5.1A @ 240 Vac; At Locked Rotor-- 48A @ 120 Vac: 30.6A @ 240 Vac
    Approvals, Underwriters Laboratories Inc.
    UL Component Recognized: File No. MP466, Vol. 6, Sec.1, Guide No. MBPR2
    Approvals, Canadian Standards Association
    Certified: File No. LR95329-1
    Tradeline Value
    Operating Temperature Range (F)
    100 F to 240 F
    Operating Temperature Range (C)
    38 C to 116 C
    Bulb Size (in.)
    3/8 in. x 2 7/8 in. copper
    Bulb Size (mm)
    10 mm x 73 mm copper
    Differential Temperature (F)
    5 F to 30 F adj.
    Differential Temperature (C)
    3 C to 17 C adj.
    Switching Action
    SPST, contacts break on temperature rise.
    Approvals, American Gas Association
    AGA Certified
    Capillary Length (in.)
    1 1/2 in.
    Well Spud Size (in.)
    1/2 in.
    Well Spud Size (mm)
    13 mm
    Capillary Length (mm)
    38 mm