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Johnson Controls A70 Series Four-Wire, Two-Circuit Temperature Control

Four-Wire, Two-Circuit Temperature Control
A70 Series

The A70 Series temperature control incorporates a vapor-charged sensing element. The A70G, A70H, and A70K have a 4-wire, 2-circuit contact block that contains two isolated sets of contacts. The contacts are designed so that when the main contact opens, the auxiliary contact closes.

• long-life, snap-acting contacts
• automatic or manual reset models

Select a link under the "item" tab below to order.

Cat #Auxiliary ContactsMain ContactsRange °F (°C)Max. Bulb Temp. °F (°C)Range AdjusterDiff F°(C°)Bulb and Capillary
A70GA-1C¹Close LowOpen Low15 to 55 (-9.4 to 12.8)400 (204.4)Screwdriver slot5 (2.8)20 ft of 1/8 in. O.D. Tubing
A70GA-2CClose LowOpen Low35 to 80 (1.7 to 26.7)250 (121)Screwdriver slot3 to 30 (-16.1 to -1.1), factory set at 12 (-11.1)3/8 in. x 3 in. 6 ft Cap.
A70HA-1C¹Close LowOpen Low15 to 55 (-9.4 to 12.8)400 (204.4)Screwdriver slotManual reset20 ft of 1/8 in. O.D. Tubing
A70HA-2CClose LowOpen Low35 to 80 (1.7 to 26.7)250 (121)Screwdriver slotManual reset3/8 in. x 3 in. 6 ft Cap.
A70HA-14CClose LowOpen Low15 to 55 (-9.4 to 12.8)400 (204.4)Screwdriver slotManual reset20 ft of 1/8 in. O.D. Tubing
A70KA-1CClose HighOpen High100 to 170 (37.8 to 76.7)240 (116)Screwdriver slotManual reset3/8 in. x 3 in. 6 ft Cap.
Pole Number LINE-M2  (Main) LINE-M1 (Auxiliary)
Motor Ratings VAC 120 208 240 277 480   600   120 208 240 277
AC Full Load A 16.0 9.2 8.0 5.0   4.8   6.0 3.4 3.0
AC Locked Rotor A 96.0 55.2 48.0 30.0   28.8   36.0 20.4 18.0
AC Non-Inductive A 16.0 9.2 8.0 7.2     6.0 6.0 6.0 6.0
Pilot Duty – Both Poles 125 VA, 120 to 600 VAC and 57.5 VA, 120 to 300 VDC


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