12V AC Output Power Supplies

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28 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

Transformer with Input Fuse Block

Transformer with 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.

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 Fuse Block
120V AC/240V AC	12V AC/24V AC	50	4"	3"	3.8"	Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
120V AC/240V AC	12V AC/24V AC	75	4"	3"	4"	Midget	13/32"	UL Listed, C-UL Listed	0000000	00000
120V AC/240V AC	12V AC/24V AC	100	4.4"	3.4"	4"	Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
120V AC/240V AC	12V AC/24V AC	150	4.7"	3.8"	4.4"	Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
120V AC/240V AC	12V AC/24V AC	250	5.3"	4 1/2"	4.6"	Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
120V AC/240V AC	12V AC/24V AC	500	6"	5.3"	5.3"	Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
Step Down Voltage—Output Fuse Block
120V AC/240V AC	12V AC	50	3.1"	3"	3.8"	Midget	13/32"	UL Listed, C-UL Listed	0000000	00000
120V AC/240V AC	12V AC	75	3.1"	3"	4"	Midget	13/32"	UL Listed, C-UL Listed	0000000	00000
120V AC/240V AC	12V AC	100	3 1/2"	3.4"	4"	Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
120V AC/240V AC	12V AC	150	3.8"	3.8"	4"	Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
240V AC/480V AC	12V AC	50	3.1"	3"	3.8"	Midget	13/32"	UL Listed, C-UL Listed	0000000	00000
240V AC/480V AC	12V AC	150	3.8"	3.8"	4"	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
120V AC/240V AC	12V AC/24V AC	50	2.8"	3"	3.3"	UL Listed, C-UL Listed	0000000	000000
120V AC/240V AC	12V AC/24V AC	75	2.8"	3"	3.8"	UL Listed, C-UL Listed	0000000	00000
120V AC/240V AC	12V AC/24V AC	100	3.1"	3.4"	3.8"	UL Listed, C-UL Listed	0000000	000000
120V AC/240V AC	12V AC/24V AC	150	3.4"	3.8"	4.3"	UL Listed, C-UL Listed	0000000	000000
120V AC/240V AC	12V AC/24V AC	250	4"	4 1/2"	4 1/2"	UL Listed, C-UL Listed	0000000	000000
120V AC/240V AC	12V AC/24V AC	350	4"	4 1/2"	5.3"	UL Listed, CSA Certified	0000000	000000
120V AC/240V AC	12V AC/24V AC	500	4.6"	5.3"	5.8"	UL Listed, C-UL Listed	0000000	000000
120V AC/240V AC	12V AC/24V AC	750	4.7"	5.3"	7"	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
120V AC/240V AC	12V AC/24V AC	50	4"	3"	3.6"	UL Class CC Midget	13/32"	UL Listed, C-UL Listed	0000000	0000000

Circuit Board AC to AC Transformers

Convert AC voltages without taking up too much space on your circuit board. These transformers are smaller than those with electrical wiring. Solder pin terminals mount directly through circuit board holes.

For technical drawings and 3-D models, click on a part number.

Voltage
Input	Output	Power Output, VA	Ht.	Wd.	Dp.	Pin Lg.	Specifications Met		Each
Single Phase—Solder Pin Terminals Input and Output
Step Down Voltage
115V AC/230V AC	12V AC/24V AC	1.1	1.3"	1.4"	1.1"	0.23"	UL Recognized Component, C-UL Recognized Component	0000000	000000
115V AC/230V AC	12V AC/24V AC	2.4	1.2"	1.4"	1.1"	0.23"	UL Recognized Component, C-UL Recognized Component	0000000	00000
115V AC/230V AC	12V AC/24V AC	6	1.3"	1.6"	1.3"	0.23"	UL Recognized Component, C-UL Recognized Component	0000000	00000
115V AC/230V AC	12V AC/24V AC	12	1.5"	1.9"	1.6"	0.23"	UL Recognized Component, C-UL Recognized Component	0000000	00000
115V AC/230V AC	12V AC/24V AC	20	1.4"	2.3"	1.9"	0.23"	UL Recognized Component, C-UL Recognized Component	0000000	00000
115V AC/230V AC	12V AC/24V AC	36	1.6"	2.6"	2.2"	0.23"	UL Recognized Component, C-UL Recognized Component	0000000	00000

Low-Current AC to AC Transformers

NEMA 1-15 Plug Input

NEMA 1-15 Plug

Power low-voltage devices such as alarms and sensors.

Voltage
Input	Output	Power Output, VA	Input Plug Type (NEMA Style)	Ht.	Wd.	Dp.	Specifications Met		Each
Single Phase—Plug Input and Screw Terminals Output
Step Down Voltage
120V AC	12V AC	20	Two Prong (1-15)	3.2"	2.6"	1.9"	UL Listed	0000000	000000

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About AC to AC Voltage Transformers

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

High-Inrush Panel-Mount AC to AC Transformers

Circuit Board AC to AC Transformers

Low-Current AC to AC Transformers