115V AC Power Supplies | McMaster-Carr

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37 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

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. Also known as control transformers.

When wired for constant voltage, transformers filter out voltage spikes and electrical noise.

Voltage
Input	Output	Power Output, VA	Ht.	Wd.	Dp.	Features	Specifications Met		Each
Single Phase—Screw Terminals Input and Output
Step Down/Constant Voltage
230V AC/460V AC/575V AC	24V AC/115V AC/230V AC	250	4"	4 1/2"	4.8"	Covered Terminals	UL Listed, C-UL Listed, CE Marked	0000000	0000000
230V AC/460V AC/575V AC	24V AC/115V AC/230V AC	300	4"	4 1/2"	5.3"	Covered Terminals	UL Listed, C-UL Listed, CE Marked	0000000	000000
230V AC/460V AC/575V AC	24V AC/115V AC/230V AC	350	4 1/2"	5.3"	5.4"	Covered Terminals	UL Listed, C-UL Listed, CE Marked	0000000	000000
230V AC/460V AC/575V AC	24V AC/115V AC/230V AC	500	4 1/2"	5.3"	6.6"	Covered Terminals	UL Listed, C-UL Listed, CE Marked	0000000	000000
230V AC/460V AC/575V AC	24V AC/115V AC/230V AC	750	6"	6.4"	7.4"	Covered Terminals	UL Listed, C-UL Listed, CE Marked	0000000	000000
230V AC/460V AC/575V AC	24V AC/115V AC/230V AC	1,000	6.3"	6.8"	7.8"	Covered Terminals	UL Listed, C-UL Listed, CE Marked	0000000	000000

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

Transformer with Input and Output Fuse Block

Sealed coils protect against dust, dirt, oil, and moisture. These transformers can handle momentary high-inrush current associated with contactors, solenoids, and relays. Also known as control transformers. Choose a transformer with multiple output voltages to simultaneously power multiple devices that require different output voltages.

Input and output fuse blocks are built-in and top-mounted to save panel space and allow quick installation.

Voltage						For Fuse
Input	Output	Power Output, VA	Ht.	Wd.	Dp.	Type	O'all Dia.	Specifications Met		Each
Single Phase—Screw Terminals Input and Output
Step Down Voltage—Input and Output Fuse Block
230V AC/460V AC	24V AC/115V AC	50	3.9"	3"	3 1/2"	UL Class CC Midget	13/32"	UL Listed, C-UL Listed	0000000	0000000
230V AC/460V AC	24V AC/115V AC	75	4.2"	3.4"	3.6"	UL Class CC Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
230V AC/460V AC	24V AC/115V AC	100	4.2"	3.8"	3.6"	UL Class CC Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
230V AC/460V AC	24V AC/115V AC	150	4.7"	3.8"	4"	UL Class CC Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
230V AC/460V AC	24V AC/115V AC	200	5.3"	4 1/2"	4.4"	UL Class CC Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
230V AC/460V AC	24V AC/115V AC	250	4.1"	4 1/2"	4.4"	UL Class CC Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
230V AC/460V AC	24V AC/115V AC	300	5.9"	5.3"	5.2"	UL Class CC Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
230V AC/460V AC	24V AC/115V AC	350	5.9"	5.3"	5.2"	UL Class CC Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
230V AC/460V AC	24V AC/115V AC	500	6"	5.3"	5.7"	UL Class CC Midget	13/32"	UL Listed, C-UL Listed	0000000	000000

High-Inrush Panel-Mount AC to AC Transformers

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

Input and output fuse blocks are built-in and top-mounted to save panel space and allow quick installation.

Single Phase—Screw Terminals Input and Output

Transformer

Voltage
Input	Output	Power Output, VA	Ht.	Wd.	Dp.	Specifications Met		Each
Step Down Voltage
230V AC/460V AC/575V AC	95V AC/115V AC	50	2.8"	3"	3.3"	UL Listed, C-UL Listed	0000000	0000000
230V AC/460V AC/575V AC	95V AC/115V AC	100	3"	3.4"	3.8"	UL Listed, C-UL Listed	0000000	000000
230V AC/460V AC/575V AC	95V AC/115V AC	150	3.4"	3.8"	4.3"	UL Listed, C-UL Listed	0000000	000000
230V AC/460V AC/575V AC	95V AC/115V AC	250	4"	4 1/2"	4.6"	UL Listed, C-UL Listed	0000000	000000
230V AC/460V AC/575V AC	95V AC/115V AC	350	4"	4 1/2"	5.3"	UL Listed, C-UL Listed	0000000	000000
230V AC/460V AC/575V AC	95V AC/115V AC	500	4.6"	5.3"	5.8"	UL Listed, C-UL Listed	0000000	000000

Single Phase—Screw Terminals Input and Output with Fuse Block

Transformer with Input and Output Fuse Block

Voltage						For Fuse
Input	Output	Power Output, VA	Ht.	Wd.	Dp.	Type	O'all Dia.	Specifications Met		Each
Step Down Voltage
230V AC/460V AC/575V AC	95V AC/115V AC	100	4.4"	3.4"	4.1"	UL Class CC Midget	13/32"	UL Listed, C-UL Listed	0000000	0000000

Enclosed Isolating AC to AC Transformers

Single Phase with Plug and Socket

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

When wired as constant voltage transformers, they filter out voltage spikes and electrical noise.

Single Phase—Plug Input and Socket Output

NEMA 5-15 Plug

NEMA 5-15 Socket

NEMA 6-15 Plug

Voltage
Input	Output	Power Output, VA	Input Plug Type (NEMA Style)	Output Socket Type (NEMA Style)	Ht.	Wd.	Dp.	Features		Each
Constant Voltage
115V AC	115V AC	150	Three Prong (5-15)	Three Slot (5-15)	3.9"	3.1"	4.2"	Isolated Coils	00000000	0000000
115V AC	115V AC	250	Three Prong (5-15)	Three Slot (5-15)	4.7"	3.8"	4.4"	Isolated Coils	00000000	000000
115V AC	115V AC	500	Three Prong (5-15)	Three Slot (5-15)	4.7"	3.8"	6"	Isolated Coils	00000000	000000
115V AC	115V AC	1,000	Three Prong (5-15)	Three Slot (5-15)	5.3"	4 1/2"	8.1"	Isolated Coils	00000000	000000
Step Down Voltage
230V AC	115V AC	100	Three Prong (6-15)	Three Slot (5-15)	3 1/2"	2.8"	3.6"	Isolated Coils	00000000	000000
230V AC	115V AC	250	Three Prong (6-15)	Three Slot (5-15)	4.7"	3.8"	4.4"	Isolated Coils	00000000	000000
230V AC	115V AC	500	Three Prong (6-15)	Three Slot (5-15)	4.7"	3.8"	6"	Isolated Coils	00000000	000000
230V AC	115V AC	1,000	Three Prong (6-15)	Three Slot (5-15)	5.4"	4.4"	8.1"	Isolated Coils	00000000	000000

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.

Voltage
Input	Output	Power Output, VA	Ht.	Wd.	Dp.	For DIN Rail Size, mm	Specifications Met		Each
Single Phase—Screw Terminals Input and Output
Step Down Voltage
230V AC, 460V AC	115V AC	63	3 1/2"	3.4"	3.9"	35	UL Recognized Component, C-UL Recognized Component, CE Marked	0000000	0000000
230V AC, 460V AC	115V AC	100	4"	3.4"	3.9"	35	UL Recognized Component, C-UL Recognized Component, CE Marked	0000000	000000
230V AC, 460V AC	115V AC	160	4.1"	3.9"	4.2"	35	UL Recognized Component, C-UL Recognized Component, CE Marked	0000000	000000
230V AC, 460V AC	115V AC	250	4.7"	3.9"	4.2"	35	UL Recognized Component, C-UL Recognized Component, CE Marked	0000000	00000000
230V AC, 460V AC	115V AC	400	4 1/2"	4.8"	4.8"	35	UL Recognized Component, C-UL Recognized Component, CE Marked	0000000	00000000
230V AC, 460V AC	115V AC	500	5.3"	4.8"	4.8"	35	UL Recognized Component, C-UL Recognized Component, CE Marked	0000000	00000000

DC to AC Transformers for Motor Loads

Provide AC power to devices that temporarily draw high output, such as motors. These transformers are designed to withstand starting surges up to twice the power output rating. Also known as inverters and converters, they prevent damage from overloads.

Single Phase—Plug Input and Socket Output

With Vehicle Input Plug

NEMA 5-15 Socket

	Voltage		Output
Number of Outlets	Input	Output	Power, W	Current, A	Input Plug Type	Output Socket Type (NEMA Style)	Ht.	Wd.	Dp.		Each
Step Up Voltage
2	11V DC-15V DC	115V AC	320	2.8	Vehicle	Three Slot (5-15)	2"	4.1"	6.1"	00000000	0000000

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About AC to AC Voltage Transformers

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

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

High-Inrush Panel-Mount AC to AC Transformers

Enclosed Isolating AC to AC Transformers

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

DC to AC Transformers for Motor Loads