13.5V DC Transformers | McMaster-Carr

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24 Products

AC to DC Adapter Cords

Negative

NEMA 1-15 Plug

Positive

Plug these adapter cords into a standard outlet and they change AC voltage to DC voltage. These cords use switching regulation, so they produce the stated voltage even when your outlet’s power or the power drawn by your device fluctuates. It also means they won’t get too hot. They have an LPS low-voltage output and Class II shock protection, so if something fails inside these cords, they’ll limit the risk of electrical shocks. These cords meet U.S. and Canadian safety standards as well as U.S. DOE (Department of Energy) Level VI standards for energy efficiency.

When choosing an adapter, match the output voltage and polarity of your device. Look for the polarity illustration on your device or the adapter you're replacing. The current you choose should, at a minimum, match your device. You can choose a higher current, but it will not improve performance.

Barrel Output Connection					Straight-Blade Input Connection
Voltage	Current, A	End ID, mm	End OD, mm	End Shape	Voltage	Current, A	NEMA Style	End Shape	Lg., ft.	Protections Provided	Specifications Met		Each
Negative Polarity
13.5V DC	0.62	2.1	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
13.5V DC	0.62	2.5	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	0000
13.5V DC	0.88	2.1	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
13.5V DC	0.88	2.5	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
13.5V DC	1.33	2.1	5.5	Straight	120V AC 240V AC	0.5	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
13.5V DC	1.33	2.5	5.5	Straight	120V AC 240V AC	0.5	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
13.5V DC	1.77	2.1	5.5	Straight	120V AC 240V AC	0.8	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
13.5V DC	1.77	2.5	5.5	Straight	120V AC 240V AC	0.8	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
13.5V DC	2.66	2.1	5.5	Straight	120V AC 240V AC	1.3	1-15	90° Elbow	6	Overvoltage, Short Circuit	DOE Level VI Efficiency, C-TUV Rheinland Certified, TUV Rheinland Certified	000000000	00000
13.5V DC	2.66	2.5	5.5	Straight	120V AC 240V AC	1.3	1-15	90° Elbow	6	Overvoltage, Short Circuit	DOE Level VI Efficiency, C-TUV Rheinland Certified, TUV Rheinland Certified	000000000	00000
Positive Polarity
13.5V DC	0.62	2.1	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	0000
13.5V DC	0.62	2.5	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	0000
13.5V DC	0.88	2.1	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
13.5V DC	0.88	2.5	5.5	Straight	120V AC 240V AC	0.4	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
13.5V DC	1.33	2.1	5.5	Straight	120V AC 240V AC	0.5	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
13.5V DC	1.33	2.5	5.5	Straight	120V AC 240V AC	0.5	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
13.5V DC	1.77	2.1	5.5	Straight	120V AC 240V AC	0.8	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
13.5V DC	1.77	2.5	5.5	Straight	120V AC 240V AC	0.8	1-15	90° Elbow	6	Overvoltage, Short Circuit	ETL Listed, C-ETL Listed, DOE Level VI Efficiency	000000000	00000
13.5V DC	2.66	2.1	5.5	Straight	120V AC 240V AC	1.3	1-15	90° Elbow	6	Overvoltage, Short Circuit	DOE Level VI Efficiency, C-TUV Rheinland Certified, TUV Rheinland Certified	000000000	00000
13.5V DC	2.66	2.5	5.5	Straight	120V AC 240V AC	1.3	1-15	90° Elbow	6	Overvoltage, Short Circuit	DOE Level VI Efficiency, C-TUV Rheinland Certified, TUV Rheinland Certified	000000000	00000

International AC to DC Adapter Cords

Adapter

AS 3112 Plug (Australia and New Zealand)

BS 1363 Plug (United Kingdom )

CEE 7/16 Plug (European Union)

NEMA 1-15 Plug (North America)

Negative

Positive

Swap the plug to match the outlet of the region you’re in instead of using separate cords for each country. These adapter cords convert AC voltage to power DC electronics. Designed with switching regulation, they maintain consistent voltage during power fluctuations and don’t get too hot. They meet U.S., Canadian, European, Australian, New Zealand, and Chinese safety standards.

A limited power source (LPS) low-voltage output decreases the risk of electric shock if something fails inside these cords. Class II shock protection means they have two levels of insulation. These cords meet U.S. DOE (Department of Energy) Level VI standards for energy efficiency when they're in-use, as well as when they're plugged in but not in use.

Choose an adapter cord with an output voltage that matches the voltage of your device. The polarity of the adapter cord and your device must also be the same. Look for the polarity illustration on your device or the adapter cord you’re replacing and pick a cord to match.

Barrel Output Connection					Straight-Blade Input Connection
Voltage	Current, A	End ID, mm	End OD, mm	End Shape	Voltage	Current, A	End Shape	Lg., ft.	Protections Provided	Color		Each
Negative Polarity
AS 3112, BS 1363, CEE 7/16, × NEMA 1-15 Plugs
13.5V DC	1.77	2.1	5.5	Straight	120V AC, 240V AC	0.8	90° Elbow	5	Overvoltage, Short Circuit	Black	0000000	000000
13.5V DC	1.77	2.5	5.5	Straight	120V AC, 240V AC	0.8	90° Elbow	5	Overvoltage, Short Circuit	Black	0000000	00000
Positive Polarity
AS 3112, BS 1363, CEE 7/16, × NEMA 1-15 Plugs
13.5V DC	1.77	2.1	5.5	Straight	120V AC, 240V AC	0.8	90° Elbow	5	Overvoltage, Short Circuit	Black	0000000	00000
13.5V DC	1.77	2.5	5.5	Straight	120V AC, 240V AC	0.8	90° Elbow	5	Overvoltage, Short Circuit	Black	0000000	00000