480V AC Power Supplies | McMaster-Carr

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.

Isolated coils protect equipment from input voltage spikes.

Voltage
Input	Output	Power Output, VA	Ht.	Wd.	Dp.	Features	Specifications Met		Each
Single Phase—Screw Terminals Input and Output
Step Down Voltage
240V AC/480V AC	120V AC	50	2.8"	3"	3.3"	Covered Terminals, Isolated Coils	UL Listed, C-UL Listed, CE Marked	0000000	000000
240V AC/480V AC	120V AC	75	2.8"	3"	3.8"	Covered Terminals, Isolated Coils	UL Listed, C-UL Listed, CE Marked	0000000	00000
240V AC/480V AC	120V AC	100	3.1"	3.4"	3.8"	Covered Terminals, Isolated Coils	UL Listed, C-UL Listed, CE Marked	0000000	00000
240V AC/480V AC	120V AC	250	4"	4 1/2"	4.6"	Covered Terminals, Isolated Coils	UL Listed, C-UL Listed, CE Marked	0000000	000000
240V AC/480V AC	120V AC	350	4"	4 1/2"	5.3"	Covered Terminals, Isolated Coils	UL Listed, C-UL Listed	0000000	000000
240V AC/480V AC	120V AC	500	4.7"	5.3"	5.8"	Covered Terminals, Isolated Coils	UL Listed, C-UL Listed, CE Marked	0000000	000000
240V AC/480V AC	120V AC	750	4.7"	5.3"	7"	Covered Terminals, Isolated Coils	UL Listed, C-UL Listed, CE Marked	0000000	000000
240V AC/480V AC	120V AC	1,000	5.7"	7"	6.6"	Covered Terminals, Isolated Coils	UL Listed, C-UL Listed, CE Marked	0000000	000000
240V AC/480V AC	120V AC	1,500	5.7"	7"	7.6"	Covered Terminals, Isolated Coils	UL Listed, C-UL Listed, CE Marked	0000000	000000
240V AC/480V AC	120V AC	2,000	6"	6.8"	8.1"	Covered Terminals, Isolated Coils	UL Listed, C-UL Listed, CE Marked	0000000	000000

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

Transformer with Output Fuse Block

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—Output Fuse Block
240V AC/480V AC	12V AC	50	3.1"	3"	3.8"	Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
240V AC/480V AC	12V AC	150	3.8"	3.8"	4"	Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
Step Down Voltage—Input and Output Fuse Block
240V AC/480V AC	120V AC	50	4"	3"	3.8"	Midget	13/32"	UL Listed, C-UL Listed	0000000	00000
240V AC/480V AC	120V AC	75	4"	3"	4"	Midget	13/32"	UL Listed, C-UL Listed	0000000	00000
240V AC/480V AC	120V AC	100	4.3"	3.4"	4"	Midget	13/32"	UL Listed, C-UL Listed	0000000	00000
240V AC/480V AC	120V AC	150	4.7"	3.8"	4"	Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
240V AC/480V AC	120V AC	250	5.3"	4 1/2"	4.4"	Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
240V AC/480V AC	120V AC	500	6"	5.3"	6.1"	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
240V AC/480V AC	120V AC	50	2.6"	3"	3.1"	UL Listed, CSA Certified	0000000	0000000
240V AC/480V AC	120V AC	100	2.9"	3.4"	3.3"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	150	3.2"	3.8"	3.6"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	250	3.2"	3.8"	5.3"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	350	3.8"	4 1/2"	5.1"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	500	3.8"	4 1/2"	5 1/2"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	750	4 1/2"	5.3"	5.6"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	1,000	4 1/2"	5.3"	6.3"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	1,500	6.2"	7.1"	5.9"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	2,000	5.4"	7"	8.4"	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
240V AC/480V AC	120V AC	50	4"	3"	3.1"	UL Class CC Midget	13/32"	UL Listed, CSA Certified	0000000	0000000
240V AC/480V AC	120V AC	100	4.2"	3.4"	3.3"	UL Class CC Midget	13/32"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	150	4 1/2"	3.8"	3.6"	UL Class CC Midget	13/32"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	250	4 1/2"	3.8"	5.3"	UL Class CC Midget	13/32"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	350	5.1"	4 1/2"	5.1"	UL Class CC Midget	13/32"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	500	5.1"	4 1/2"	5 1/2"	UL Class CC Midget	13/32"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	750	5.8"	5.3"	5.6"	UL Class CC Midget	13/32"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	1,000	5.8"	5.3"	6.3"	UL Class CC Midget	13/32"	UL Listed, CSA Certified	0000000	000000
240V AC/480V AC	120V AC	1,500	7.7"	6.8"	8.1"	UL Class CC Midget	13/32"	UL Listed, C-UL Listed	0000000	000000
240V AC/480V AC	120V AC	2,000	7.7"	6.8"	7.8"	UL Class CC Midget	13/32"	UL Listed, CSA Certified	0000000	000000

Enclosed Isolating AC to AC Transformers

Single Phase

Three Phase

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

Three phase transformers have Wye wiring for output voltage.

Sealed coils and cores prevent corrosion and insulation damage.

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

Transformers that cannot be sold to California are restricted by local energy efficiency regulations.

Single Phase—Wire Leads Input and Output

Voltage
Input	Output	Power Output, VA	Ht.	Wd.	Dp.	Features	Environment	Environmental Rating	Specifications Met		Each
Step Down/Constant Voltage
240V AC, 480V AC	120V AC, 240V AC	750	11.3"	5.3"	6 1/2"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, C-UL Listed	0000000	0000000
240V AC, 480V AC	120V AC, 240V AC	1,000	11.3"	5.3"	6 1/2"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, C-UL Listed	0000000	000000
240V AC, 480V AC	120V AC, 240V AC	1,500	13.3"	6.3"	7.8"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, C-UL Listed	0000000	000000
240V AC, 480V AC	120V AC, 240V AC	3,000	13.3"	6.3"	7.8"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, C-UL Listed	0000000	000000
240V AC, 480V AC	120V AC, 240V AC	5,000	15"	10.2"	10.6"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, C-UL Listed	0000000	000000
240V AC, 480V AC	120V AC, 240V AC	10,000	15.2"	13 1/2"	10.8"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, CSA Certified	0000000	00000000
240V AC, 480V AC	120V AC, 240V AC	15,000	16.9"	14.1"	11.6"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, CSA Certified	0000000	00000000
240V AC, 480V AC	120V AC, 240V AC	25,000	18.4"	16.1"	13.3"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, CSA Certified	0000000	00000000

Three Phase—Wire Leads Input and Output

Voltage
Input	Output	Power Output, VA	Ht.	Wd.	Dp.	Features	Environment	Environmental Rating	Specifications Met		Each
Step Down Voltage
480V AC	120V AC, 208V AC	3,000	10.4"	12.4"	7 1/2"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, CSA Certified	0000000	0000000
480V AC	120V AC, 208V AC	6,000	11.8"	14.2"	8.8"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, CSA Certified	0000000	00000000
480V AC	120V AC, 208V AC	9,000	14"	17.8"	11 1/2"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, CSA Certified	0000000	00000000
480V AC	120V AC, 208V AC	15,000	18.9"	20.3"	9"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, CSA Certified	0000000	00000000

Three Phase—Bus Bar Input and Output

Voltage
Input	Output	Power Output, VA	Ht.	Wd.	Dp.	Features	Environment	Environmental Rating	Specifications Met	Cannot Be Sold To		Each
Step Down Voltage
480V AC	120V AC, 208V AC	30,000	25 1/2"	24.4"	19.4"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, CSA Certified	CA	0000000	000000000
480V AC	120V AC, 208V AC	45,000	25 1/2"	24.4"	19.4"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, CSA Certified	CA	0000000	00000000
480V AC	120V AC, 208V AC	75,000	29.4"	28.2"	22.4"	Isolated Coils, Sealed Coils, Sealed Cores	Outdoor	NEMA 3R	UL Listed, CSA Certified	CA	0000000	00000000

Enclosed Voltage-Stabilizing AC to AC Transformers

Protect sensitive equipment from electromagnetic interference and maintain power during three-millisecond power dips. These transformers also isolate output and input voltage (output regulation is ±3% with input voltage fluctuations from +10% to -20%). When wired for constant voltage, transformers filter out voltage spikes and electrical noise.

Voltage
Input	Output	Power Output, VA	Ht.	Wd.	Dp.	Specifications Met		Each
Single Phase—Screw Terminals Input and Output
Step Up/Step Down/Constant Voltage
120V AC, 208V AC, 240V AC, 480V AC	120V AC, 208V AC, 240V AC	140	4.4"	6"	8 1/2"	UL Listed, CSA Certified	0000000	0000000
120V AC, 208V AC, 240V AC, 480V AC	120V AC, 208V AC, 240V AC	250	4.4"	6"	9.7"	UL Listed, CSA Certified	0000000	000000
120V AC, 208V AC, 240V AC, 480V AC	120V AC, 208V AC, 240V AC	500	6 1/2"	6.3"	12.3"	UL Listed, CSA Certified	0000000	00000000
120V AC, 208V AC, 240V AC, 480V AC	120V AC, 208V AC, 240V AC	750	6 1/2"	6.3"	13.3"	UL Listed, CSA Certified	0000000	00000000
120V AC, 208V AC, 240V AC, 480V AC	120V AC, 208V AC, 240V AC	1,000	6 1/2"	6.3"	14.2"	UL Listed, CSA Certified	0000000	00000000
120V AC, 208V AC, 240V AC, 480V AC	120V AC, 208V AC, 240V AC	1,500	9.9"	9.4"	17.6"	UL Listed, CSA Certified	0000000	00000000
120V AC, 208V AC, 240V AC, 480V AC	120V AC, 208V AC, 240V AC	3,000	9.9"	9.4"	19.9"	UL Listed, CSA Certified	0000000	00000000

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. Turn off the transformer and the magnetic current reverses automatically for release. The transformer's power output wattage should be equal to or greater than the watts of your electromagnet. All are rated NEMA 12 for protection from oil/coolant dripping. Also known as rectifiers. They cannot be sold to the regions listed due to local energy efficiency requirements.

Voltage
Input	Output	Power Output, W	Ht.	Wd.	Dp.	No. of Mounting Holes	Mounting Hole Dia.	Mounting Fasteners Included	Housing Material	Max. Temp., °F	Cannot Be Sold To		Each
Single Phase—Terminal Block Input and Output
Step Down Voltage
240V AC, 480V AC	110V DC	100	12"	10"	5"	4	9/32"	No	Steel	140°	CA, VT	0000000	000000000

LED Drivers

Send electricity to LED lights while protecting them from voltage and current fluctuations. These drivers convert high-voltage, alternating current from your power supply into low-voltage, direct current. Use them to replace existing LED drivers or build your own light fixtures. All meet U.S. and Canadian safety standards, as well as UL requirements for use in dry and damp locations. They’re also FCC compliant to meet regulations for electromagnetic interference.

Drivers that are for use outdoors help light roadways and parking garages. They’re often used with area, flood, bay, and security lights, as well as with signage.

Constant-current drivers ensure a reliable output from your fixture and prevent it from degrading quickly due to current fluctuations and receiving too much power. They’re the most common type of LED driver.

Drivers with constant current or constant voltage only perform one of those functions at a time.

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

Drivers—For Use Outdoors

Output				Input
Voltage	Current, A	Wattage	Wire Connection Type	Current, A	Max. Wattage	Wire Connection Type	Light Setting	Lg.	Wd.	Ht.	Temperature Range, °F		Each
347-480V AC Input Voltage
70-210V DC	1.25-0.1	180W	Wire Leads	0.56-0.40	200W	Wire Leads	Dimmable	9 1/2"	2 5/16"	1 1/2"	-40° to 130°	00000000	000000

Drivers with Constant Current—For Use Outdoors

Output				Input
Voltage	Current, A	Wattage	Wire Connection Type	Current, A	Max. Wattage	Wire Connection Type	Light Setting	Lg.	Wd.	Ht.	Temperature Range, °F		Each
347-480V AC Input Voltage
42-142V DC	1.05	150W	Wire Leads	0.50-0.35	164W	Wire Leads	Dimmable	9 1/2"	2 5/16"	1 1/2"	-40° to 130°	00000000	000000

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