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The HAMMOND PH50MGJ is a 50 VA control transformer designed to step down line voltage to a lower control-circuit voltage in HVAC, industrial, and light commercial electrical systems. Control transformers of this type isolate and power low-voltage control circuits, protecting sensitive components such as thermostats, relays, and control boards from line-side disturbances. At 50 VA, this unit provides sufficient capacity for typical single-zone or small multi-zone control applications. Licensed electricians and HVAC technicians are the primary installers for this class of transformer.
The PH50MGJ is suited for use in residential and light commercial HVAC control panels, electrical enclosures, and equipment requiring a stable low-voltage power supply for control circuitry. It is a direct-mount style transformer appropriate for panel or enclosure installation where a dedicated control power source is needed. Applications include furnace and air handler control boards, packaged rooftop unit controls, and similar low-voltage control circuit applications.
Designed as an OEM-style replacement or new-install control transformer for residential and light commercial HVAC and electrical control panel applications requiring a 50 VA transformer.
Installation should be performed by a licensed electrician or qualified HVAC technician in accordance with the National Electrical Code (NEC). Disconnect and lock out all power to the control panel before removing or installing the transformer. Verify that the transformer primary and secondary voltage ratings match the system requirements before energizing. Do not exceed the 50 VA rated load on the secondary circuit.
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