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PENN Controls Products Catalog

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A70 Series Four-Wire, Two-Circuit Temperature Control Description The A70 Series Temperature Control incorporates a vapor-charged sensing element. The A70G, A70H, and A70K have a four-wire, two-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. Refer to the A70, A72 Series Temperature Controls for Refrigeration and Heating Product Bulletin (LIT-125155) for important product application information. Features • long-life, snap-acting contacts • automatic or manual reset models Applications Typical applications include energizing an indicator light after a low temperature cutout on a ventilating system. Figure 11: A70 Series action diagram 55

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