Appleton E250D Control Transformer 250VA 240x480-24v

Product Description

The APPLETON E250D is a heavy-duty control transformer rated at 250 VA, designed to step down primary voltages of 240 or 480 volts to a 24-volt secondary output. This transformer provides stable low-voltage power to control circuits in HVAC, industrial, and commercial electrical systems. It is built for demanding environments where reliable voltage conversion is critical to system operation. Licensed electricians and HVAC technicians install this unit as part of control panel builds, rooftop unit wiring, and building automation system power supplies.

The E250D is suited for commercial and light industrial applications where 24-volt control circuits must be powered from 240-volt or 480-volt branch circuits. Typical installations include air handling units, packaged rooftop systems, motor control centers, and industrial control panels. Its 250 VA capacity supports multiple control loads simultaneously, making it appropriate for larger or multi-zone systems.

Key Features

• 250 VA transformer capacity supports multiple simultaneous control circuit loads
• Dual primary voltage input accepts 240 or 480 volts for flexible installation
• 24-volt secondary output compatible with standard low-voltage control circuits
• Heavy-duty construction rated for commercial and industrial environments
• Compact enclosure fits standard control panel and unit-mounted applications

Compatibility

Designed as an OEM-style replacement or new-installation control transformer for 24-volt control circuits powered from 240-volt or 480-volt branch circuits in commercial HVAC and industrial control applications.

Installation Notes

Installation of this transformer should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). Disconnect and lock out all power to the circuit before beginning any wiring work. Verify primary voltage selection matches the available branch circuit voltage before energizing. Secure the unit in a code-compliant enclosure and confirm all secondary circuit loads do not exceed the 250 VA rating.

Technical Specifications

• Capacity: 250 VA
• Primary Voltage: 240 x 480 volts
• Secondary Voltage: 24 volts
• Length: 9.4 inches
• Width: 6.6 inches
• Height: 7.2 inches
• Weight: 10.95 pounds
• UPC: 78347253114

Standard Information

• Brand: APPLETON
• Manufacturer Part Number: E250D