Phase Transformers | McMaster-Carr

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11 Products

AC to AC Phase Converters for Light Loads

Also known as static converters, these allow your motor to run at up to 70% of its normal power. Use them in drill presses, mills, and grinders. They generate three-phase output power from a single-phase input. Select a converter so the output power of your largest motor falls within the output range.

	Voltage, V AC
	Input	Output	Output Power, hp	Ht.	Wd.	Dp.		Each
Single-Phase Input/Three-Phase Output



		230	230	0.333 to 0.75	11 1/4"	6"	3 5/16"	7331K41	0000000


		230	230	0.75 to 1.5	11 1/4"	6"	3 5/16"	7331K42	000000
		230	230	1 to 3	11 1/4"	6"	3 5/16"	7331K44	000000
		230	230	3 to 5	11 1/4"	6"	3 5/16"	7331K45	000000
		230	230	4 to 8	11 1/4"	6"	3 5/16"	7331K46	000000
		230	230	8 to 10	13 3/4"	6"	3 5/16"	7331K47	000000

High-Efficiency AC to AC Phase Converters for Light Loads

Run your motors at 100% of their normal power. These transformers generate three-phase output power from a single-phase input. Also known as rotary converters.

Select a converter with an output power that exceeds but comes closest to the power requirement of your largest motor. When using multiple motors, start the largest motor first. Then start smaller motors individually until their total horsepower requirement is no more than twice the output power of the converter.

	Voltage, V AC
	Input	Output	Output Power, hp	Ht.	Wd.	Dp.		Each
Single-Phase Input/Three-Phase Output



		230	230	1	9 1/4"	9 1/2"	8 5/8"	7331K51	000000000


		230	230	3	11"	11 1/2"	9 5/8"	7331K53	00000000
		230	230	5	13"	13 9/16"	12 1/4"	7331K54	00000000
		230	230	6	13"	13 9/16"	12 1/4"	7331K55	00000000
		230	230	10	17 1/2"	17 1/8"	14 3/4"	7331K56	00000000