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The HAMMOND PH75MGJ is a 75 VA control transformer designed to step down line voltage to low-voltage control circuit levels in HVAC, industrial, and commercial electrical systems. Control transformers of this type isolate and power relay logic, contactors, motor starters, and other control devices that operate at reduced voltages. Rated at 75 VA, this unit handles moderate control circuit loads without oversizing the transformer for the application. It weighs 4.5 pounds, reflecting a robust core and winding construction typical of reliable control transformer design. Licensed electricians and HVAC technicians are the primary installers of this class of component.
This transformer is suited for use in commercial and light industrial control panels, HVAC air handler units, rooftop units, and motor control centers where a dedicated low-voltage control circuit is required. Its 75 VA capacity makes it appropriate for applications powering multiple relays, contactors, or a combination of low-voltage control devices simultaneously. It is installed at the point where line voltage is tapped and stepped down to feed the control circuit, keeping control wiring isolated from the power circuit.
Designed as an OEM-style replacement or new-installation control transformer for HVAC, commercial electrical, and light industrial control panel applications requiring a 75 VA step-down transformer.
Installation should be performed by a licensed electrician or qualified HVAC technician in accordance with the NEC and applicable local codes. De-energize and lock out the panel or unit before removing an existing transformer or making any wiring connections. Verify that the primary voltage tap matches the available line voltage before energizing. Ensure the VA rating meets or exceeds the total connected control circuit load before commissioning.
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