Step Down Converters | McMaster-Carr

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	Output Voltage Output Voltage

	Input Voltage Input Voltage

	Power Output Power Output

	Transformer Voltage Function Transformer Voltage Function	Show

Step Down

	Transformer Voltage Function Transformer Voltage Function	Hide

Step Down

Step Up

Constant

	Prewired Power Output Label Prewired Power Output Label

	Electrical Phase Electrical Phase

Single

Three

	Prewired Primary Voltage Label Prewired Primary Voltage Label

120V AC

240V AC

	Transformer Type Transformer Type

AC to AC

AC to DC

	Frequency Frequency

50Hz

60Hz

	Prewired Secondary Voltage Label Prewired Secondary Voltage Label

	Wiring Diagram Wiring Diagram

	Output Connection Type Output Connection Type

Hardwire

Socket

	Input Connection Type Input Connection Type

Hardwire

Plug

	Output Wire Connection Type Output Wire Connection Type

Screw Terminals

Wire Leads

Quick-Disconnect Terminals

Terminal Block

Bus Bar

	Width Width

	Depth Depth

	Input Wire Connection Type Input Wire Connection Type

Wire Leads

Screw Terminals

Quick-Disconnect Terminals

Terminal Block

Bus Bar

	Height Height

	Application Application

Power

	System of Measurement (MV) System of Measurement (MV)

Inch

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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188 Products

About AC to AC Voltage Transformers

For single-phase equipment, use this formula to find power output: VA = Volts × Amps

For three-phase equipment, use this formula to find power output: VA = Volts × Amps × 1.73

International AC to AC Transformers

These transformers convert voltage to continuously operate at 80% of the rated power output.

Enclosed Step-Up/Step-Down AC to AC Transformers

Improve the efficiency of your equipment—wire these transformers to step your input voltage up or down by as much as 20%.

Enclosed Voltage-Stabilizing AC to AC Transformers

Protect equipment from electromagnetic interference and maintain power during three-millisecond power dips.

Enclosed Isolating AC to AC Transformers

These transformers have isolated primary and secondary coils to protect your sensitive equipment from input voltage spikes.

Enclosed Step-Down AC to AC Transformers

Also known as auto transformers, these decrease incoming voltage to meet the needs of your application.

Touch-Safe High-Inrush
Panel-Mount AC to AC Transformers

Prevent accidental contact with live electrical connections—the screw terminals are covered or recessed. These transformers can handle momentary high-inrush current associated with contactors, solenoids, and relays.

High-Inrush Panel-Mount AC to AC Transformers

These transformers can handle momentary high-inrush current associated with contactors, solenoids, and relays.

Harsh Environment High-Inrush
Panel-Mount AC to AC Transformers

Sealed coils protect against dust, dirt, oil, and moisture. These transformers can handle momentary high-inrush current associated with contactors, solenoids, and relays.

DIN-Rail/Panel-Mount High-Inrush
AC to AC Transformers

Use with DIN-rail to install wherever you need these transformers or mount them to a panel. They can handle momentary high-inrush current associated with equipment start-up.

Outlet Box/Panel-Mount
High-Inrush AC to AC Transformers

Use the included outlet box cover or mount these transformers to a panel. They can handle momentary high-inrush current associated with equipment start-up.

Panel-Mount Variable-Voltage AC to AC Transformers

Permanently install these transformers in panels.

Bench-Top Variable-Voltage AC to AC Transformers

Mount these portable transformers to any flat surface.

Low-Current AC to AC Transformers

Power low-voltage devices such as alarms and sensors.

Low-Current Panel-Mount AC to AC Transformers

Hardwire this transformer into your panel.

AC to DC Electromagnet Transformers

Flip the switch to reverse the magnetic current and release your electromagnet's hold.

High-Speed AC to DC Electromagnet Transformers

Suitable for high-speed automated applications, these transformers reverse the magnetic current and release your electromagnet's hold faster than other electromagnet transformers.

About AC to AC Voltage Transformers

AC to AC Voltage Transformers

International AC to AC Transformers

Enclosed Step-Up/Step-Down AC to AC Transformers

Enclosed Voltage-Stabilizing AC to AC Transformers

Enclosed Isolating AC to AC Transformers

Enclosed Step-Down AC to AC Transformers

Touch-Safe High-InrushPanel-Mount AC to AC Transformers

High-Inrush Panel-Mount AC to AC Transformers

Harsh Environment High-InrushPanel-Mount AC to AC Transformers

DIN-Rail/Panel-Mount High-InrushAC to AC Transformers

Outlet Box/Panel-MountHigh-Inrush AC to AC Transformers

Panel-Mount Variable-Voltage AC to AC Transformers

Bench-Top Variable-Voltage AC to AC Transformers

Low-Current AC to AC Transformers

Low-Current Panel-Mount AC to AC Transformers

AC to DC Electromagnet Transformers

AC to DC Electromagnet Transformers

High-Speed AC to DC Electromagnet Transformers

Touch-Safe High-Inrush
Panel-Mount AC to AC Transformers

Harsh Environment High-Inrush
Panel-Mount AC to AC Transformers

DIN-Rail/Panel-Mount High-Inrush
AC to AC Transformers

Outlet Box/Panel-Mount
High-Inrush AC to AC Transformers