PENN Controls Products Catalog

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A11 Series Low Temperature Cutout Controls Description The A11 Series Low Temperature Cutout Controls are available with single-pole, single-throw (SPST) or single-pole, double-throw (SPDT) contact action. Applications include the sensing of low temperature conditions to avoid over cooling or icing of hydronic coils, cooling coils, and liquid-handing pipes. The controls are compact and sturdy, and have an adjustable temperature setpoint range with a fixed differential. You can access the range adjustment screw at the bottom of the control, or at the top of the control when you remove the cover. A factory-set low temperature stop is available when specified. Refer to the A11 Series Low Temperature Cutout Controls Product Bulletin (LIT-125010) for additional product application information. Features • Precision repeat accuracy: the control always senses at the coldest point across the full length of the sensing element. The control remains unaffected by ambient temperature at the diaphragm cup and the 4 ft (1.2m) capillary. Install a 20 ft (6.1 m) or 40 ft (12.2 m) sensing element in the controlled area. • Trip-free manual reset provides the option to reset the lever. Press and release the lever before operation resumes. • Precision snap-acting contacts in a dust protected enclosure provides for the A11 Control to operate to the fullest potential. • Direct reading scale provides easy-to-adjust setpoint. You can make adjustments from the top or bottom of the control. A11 electrical rating Table 2: A11 Series electrical rating Description cULus Volts AC 50/60 Hz 120 208 240 Full load amperes 16 9.2 8 Lock rotor amperes 96 55.2 48 Resistive amperes 16 9.2 8 Pilot duty 125 VA, 24 VAC to 277 VAC Selection chart Table 3: Selection chart Model Description A11A SPST, open low, manual reset A11B SPST, open low, automatic recycle A11D SPDT, manual reset A11E SPDT, automatic recycle 12

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