48V DC Power Supplies | McMaster-Carr

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35 Products

Detachable-Cord AC to DC Adapters

IEC C8 Input and Barrel Output

IEC C14 Input and Barrel Output

IEC C14 Input and 4-Pin Output

IEC C14 Input with 6-Pin Output

Barrel Output

IEC C8 Input

Positive

IEC C14 Input

4-Pole 4-Pin Circular DIN Output

6-Pole Molex Mini-Fit Output

Couple these adapters with a cord that matches your outlet and length requirements to run DC-powered electronics. Instead of plugging directly into an outlet, the body of these adapters sits on the floor or other surface, so it remains out of the way and won’t block multiple outlets. These adapters use switching regulation—they produce the stated voltage even when your outlet’s power or the power drawn by your device fluctuates. Most have an LPS low-voltage output, so if something fails inside these adapters, they’ll limit the risk of electrical shocks. They meet U.S., Canadian, and European safety standards. Many also meet U.S. and European 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.

Adapters with an IEC C8 input require power cords with a C7 socket. With Class II shock protection, they have two levels of insulation that prevent electrical shocks.

Adapters with an IEC C14 input require power cords with a C13 socket. They have Class I shock protection and prevent electrical shocks with a combination of insulation and a protective ground.

Barrel/Pin Output Connection						Straight-Blade Input Connection
Voltage	Current, A	Polarity	End ID, mm	End OD, mm	End Shape	Voltage	Current, A	End Shape	Lg., ft.	Shock Protection Class	Protections Provided	Color		Each
IEC C8 Input × Barrel Output
48V DC	0.5	Positive	2.1	5.5	Straight	120V AC, 240V AC	0.58	Straight	5	II	Overcurrent, Overvoltage, Short Circuit	Black	00000000	000000
48V DC	0.75	Positive	2.1	5.5	Straight	120V AC, 240V AC	1	Straight	5	II	Overcurrent, Overvoltage, Short Circuit	Black	00000000	00000
48V DC	1.36	Positive	2.1	5.5	Straight	120V AC, 240V AC	1.4	Straight	5	II	Overcurrent, Overvoltage, Short Circuit	Black	00000000	00000
IEC C14 Input × Barrel Output
48V DC	0.5	Positive	2.1	5.5	Straight	120V AC, 240V AC	0.58	Straight	5	I	Overcurrent, Overvoltage, Short Circuit	Black	00000000	00000
48V DC	0.75	Positive	2.1	5.5	Straight	120V AC, 240V AC	1	Straight	5	I	Overcurrent, Overvoltage, Short Circuit	Black	0000000	00000
48V DC	1.36	Positive	2.1	5.5	Straight	120V AC, 240V AC	1.4	Straight	5	I	Overcurrent, Overvoltage, Short Circuit	Black	0000000	00000
48V DC	1.88	Positive	2.1	5.5	Straight	120V AC, 240V AC	1.2	Straight	5	I	Overcurrent, Overvoltage, Short Circuit	Black	0000000	00000
IEC C14 Input × 4-Pin Circular DIN Output
48V DC	3.3	__	__	__	Straight	120V AC, 240V AC	2.2	Straight	5	I	Overcurrent, Overvoltage, Short Circuit	Black	00000000	00000
48V DC	4.17	__	__	__	Straight	120V AC, 240V AC	2.8	Straight	5	I	Overcurrent, Overvoltage, Short Circuit	Black	00000000	000000
IEC C14 Input × 6-Pin Molex Mini-Fit Output
48V DC	5.2	__	__	__	Straight	120V AC, 240V AC	3.3	Straight	4	I	Overcurrent, Overvoltage, Short Circuit	Black	0000000	000000
48V DC	6.25	__	__	__	Straight	120V AC, 240V AC	3.9	Straight	5	I	Overcurrent, Overvoltage, Short Circuit	Black	00000000	000000

Medical-Grade AC to DC Adapters

IEC C8 Input and 4-Pole 4-Pin Circular DIN Output

IEC C14 Input and 4-Pole 4-Pin Circular DIN Output

IEC C14 Input and 6-Pole Molex Mini-Fit Output

IEC C14 Input and 10-Pole Molex Mini-Fit Output

4-Pole 4-Pin Circular DIN Output

IEC C8 Input

Positive

IEC C14 Input

6-Pole Molex Mini-Fit Output

10-Pole Molex Mini-Fit Output

To run DC-powered lab and medical equipment from your outlet, add a power cord with the plug style and length you need. These adapters meet strict IEC, UL, or ANSI/AAMI standards for use with medical devices. They also have a Means of Protection rating of 2xMOPP, which is the highest level of shock protection available for medical-grade power supplies, so in addition to using them with lab and medical equipment, you can use them with devices that come into contact with patients.

Unlike adapters with bodies that plug directly into an outlet, the body of these adapters rests on a desk or the floor, so it won’t block multiple outlets. Adapters with an IEC C8 input connection require power cords with a C7 socket. Those with an IEC C14 input connection require power cords with a C13 socket.

When selecting an adapter, make sure the DC voltage and amps for the pin output connection can handle the requirements of your device. Choosing a DC voltage and amps that are much higher than you need will not improve performance.

These adapters use switching regulation, which means they produce the stated voltage despite fluctuations in your outlet’s power and the power being drawn by your device. It also means they won’t get too hot.

If you exceed the maximum voltage or load, these adapters shut down to protect both the adapters and the connected equipment.

All of these adapters meet European safety standards. Adapters with Class II shock protection have two levels of insulation to prevent electrical shocks. Those with Class I shock protection prevent electrical shocks with a combination of insulation and a protective ground.

Barrel/Pin Output Connection
Voltage	Current, A	Polarity	End Shape	Voltage	Current, A	End Shape	Lg., ft.	Shock Protection Class	Protections Provided	Specifications Met	Color		Each
Nondetachable-Cord
IEC C8 Input × 4-Pole 4-Pin Circular DIN Output
48V DC	2.3	Positive	Straight	120V AC, 240V AC	1.3	Straight	3.28	II	Overload, Overvoltage, Overtemp, Short Circuit	CE Marked, 60950-1, IEC/ES/CSA/EN60601-1, IEC/UL/CSA/EN62368-1, IEC60601-1-11	Black	0000000	0000000
IEC C14 Input × 4-Pole 4-Pin Circular DIN Output
48V DC	3.4	Positive	Straight	120V AC, 240V AC	2.5	Straight	3.44	I	Overvoltage, Short Circuit	CE Marked, UL60601-1, EN60601-1, IEC60601-1	Black	0000000	000000
IEC C14 Input × 6-Pole Molex Mini-Fit Output
48V DC	5.2	Positive	Straight	120V AC, 240V AC	1.3	Straight	2.62	I	Overload, Overvoltage, Overtemp, Short Circuit	CE Marked, 60950-1, IEC/ES/CSA/EN60601-1, IEC/UL/CSA/EN62368-1	Black	0000000	000000
IEC C14 Input × 10-Pole Molex Mini-Fit Output
48V DC	3.3	Positive	Straight	120V AC, 240V AC	3	Straight	2.62	I	Overload, Overvoltage, Overtemp, Short Circuit	CE Marked, 60950-1, IEC/ES/CSA/EN60601-1, IEC/UL/CSA/EN62368-1, IEC60601-1-11	Black	0000000	000000

Barrel-Style DC Power Cords

Carry DC power in or out of electronic devices with these cords. All have industry standard barrel-style connections, letting you power electronics from power supplies. Link together multiple cords to carry electricity over long distances.

Plug × plug cords allow you to connect two devices that have female socket connections.

Plug × Plug

								Cord
Wire Gauge	Current, A	Voltage	End ID, mm	End OD, mm	End Lg., mm	Color	Lg., ft.	OD	Insulation Material	Temp. Range, °F		Each
20	8.5	48V DC	2.1	5.5	9.5	Black	6	0.12"	PVC Plastic	-10° to 155°	0000000	00000

90° Elbow Plug × 90° Elbow Plug

								Cord
Wire Gauge	Current, A	Voltage	End ID, mm	End OD, mm	End Lg., mm	Color	Lg., ft.	OD	Insulation Material	Temp. Range, °F		Each
20	8.5	48V DC	2.1	5.5	9.5	Black	3	0.12"	PVC Plastic	-10° to 155°	0000000	00000

Plug × Socket

			Plug			Socket				Cord
Wire Gauge	Current, A	Voltage	End ID, mm	End OD, mm	End Lg., mm	For Plug End ID, mm	For Plug End OD, mm	Color	Lg., ft.	OD	Insulation Material	Temp. Range, °F		Each
18	7	48V DC	2.1	5.5	12	2.1	5.5	Black	15	0.21"	PVC Plastic	-10° to 175°	0000000	000000
18	8	48V DC	2.5	5.5	12	2.5	5.5	Black	15	0.21"	PVC Plastic	-10° to 175°	0000000	00000

Barrel-Style DC Connectors

Made with industry standard barrel-style ends, these connectors carry DC power between electronic devices and power supplies.

Housing Connection—Pair connectors that have the same type of housing connection. Push-in connectors are quick to connect and disconnect. Screw-together connectors take longer to connect, but are more secure. They’re good for preventing power loss if vibration might loosen the connection or the connector could get yanked out.

Wire Connection—Choose based on your application. Wire leads come ready to connect and don’t require any preparation. Screw-clamp terminals are easy to use; just insert the wire into the terminal and tighten the screw to clamp it in place.

Receptacles—Mount them in a panel. Receptacles with an off (Normally Open) circuit position turn equipment on when you plug in a device.

Adapters—Convert to the right barrel size for your connection.

Push-In Plugs with Wire Leads

Straight Push-In Plug with Wire Leads

									Cable					Black
End ID, mm	End OD, mm	End Length, mm	Number of Poles	Voltage	Current, A	Wire Lead Gauge	OD, mm	Lg., ft.	OD, mm	Color	Cable Lead Lg., ft.	Housing Material	Temp. Range, °F		Each
2.1	5.5	12	2	48V DC	7	18	9.6	6	5.2	Black	5.9	Plastic	-40° to 175°	00000000	00000
2.1	5.5	12	2	48V DC	8.5	18	9.6	15	5.2	Black	14.9	Plastic	-10° to 175°	00000000	00000
2.5	5.5	12	2	48V DC	7	18	9.6	6	5.2	Black	5.9	Plastic	-40° to 175°	00000000	0000
2.5	5.5	12	2	48V DC	8	18	9.6	15	5.2	Black	14.9	Plastic	-10° to 175°	00000000	00000

Push-In Plugs with Screw-Clamp Terminals

Push-In Plug with Screw-Clamp Terminals

												Black
End ID, mm	End OD, mm	End Length, mm	Number of Poles	Voltage	Current, A	For Wire Gauge	Lg., mm	Wd., mm	Ht., mm	Housing Material	Temp. Range, °F		Each
2.1	5.5	12	2	48V DC	8.5	24-18	44.6	11	11	Plastic	-10° to 155°	0000000	00000

Push-In Sockets with Wire Leads

Push-In Socket with Wire Leads

										Black
For Plug End ID, mm	For Plug End OD, mm	Number of Poles	Voltage	Current, A	Wire Lead Gauge	OD, mm	Lg., ft.	Housing Material	Temp. Range, °F		Each
2.1	5.5	2	48V DC	7	18	11.4	6	Plastic	-40° to 175°	00000000	00000
2.5	5.5	2	48V DC	7	18	11.4	6	Plastic	-40° to 175°	00000000	0000

Push-In Sockets with Screw-Clamp Terminals

Push-In Socket with Screw-Clamp Terminals

											Black
For Plug End ID, mm	For Plug End OD, mm	Number of Poles	Voltage	Current, A	For Wire Gauge	Lg., mm	Wd., mm	Ht., mm	Housing Material	Temp. Range, °F		Each
2.1	5.5	2	48V DC	7	24-18	32.5	11	11	Plastic	-10° to 155°	0000000	00000

Push-In Receptacles with Wire Leads

Push-In Receptacle with Wire Leads

								Cable						Mounting Thread			Black
For Plug End ID, mm	For Plug End OD, mm	Number of Poles	Voltage	Current, A	Wire Lead Gauge	OD, mm	Lg., ft.	OD, mm	Color	Cable Lead Lg., ft.	Housing Material	Housing Thread Location	For Panel Cutout Dia., mm	Size	Pitch, mm	Temp. Range, °F		Each
Off (Normally Open)
2.1	5.5	2	48V DC	9	18	15	1	5.4	Black	1	Plastic	External	12	M12	1	-10° to 175°	0000000	00000
2.5	5.5	2	48V DC	8	18	15	1	5.4	Black	1	Plastic	External	12	M12	1	-10° to 175°	0000000	00000

Screw-Together Receptacles with Wire Leads

Screw-Together Receptacle with Wire Leads

											Mounting Thread			Black
For Plug End ID, mm	For Plug End OD, mm	Number of Poles	Voltage	Current, A	Wire Lead Gauge	OD, mm	Lg., ft.	Housing Material	Housing Thread Location	For Panel Cutout Dia., mm	Size	Pitch, mm	Temp. Range, °F		Each
Off (Normally Open)
2.1	5.5	2	48V DC	7.5	18	12.5	1	Plastic	External	11	M11	1	-40° to 175°	00000000	00000
2.5	5.5	2	48V DC	7.5	18	12.5	1	Plastic	External	11	M11	1	-40° to 175°	00000000	0000

Socket × Plug Push-In Adapter

Socket x Plug Push-In Adapter

Socket		Plug									Black
For Plug End ID, mm	For Plug End OD, mm	End ID, mm	End OD, mm	End Lg., mm	Voltage	Current, A	OD, mm	Lg., mm	Housing Material	Temp. Range, °F		Each
2.1	5.5	2.5	5.5	12	48V DC	7	11.4	42	Plastic	-10° to 155°	0000000	00000

Turn-Lock Vehicle DC Connectors

Lock connectors into place for a secure connection in high-vibration environments. The turn-lock design prevents attachment to AC connectors. They power ancillary devices, such as chargers for electronics, from a vehicle. All have corrosion-resistant electrical components.

Plugs have an O-ring that seals out moisture when connected to a socket.

Socket has a watertight cap for protection when not in use.

Plugs

Voltage	Current	For No. of Wires	No. of Wire Entry Holes	Wire Connection Type	For Wire Gauge	For Cable OD	OD	Lg.	Color	Temp. Range, °F		Each
48V DC	40A	3	1	Screw Terminals	16-12	0.25"-0.4"	1.4"	3.3"	Black	-5° to 265°	0000000	000000
48V DC	40A	3	3	Screw Terminals	16-8	__	1.4"	2.9"	Black	-5° to 265°	0000000	00000

Sockets

Voltage	Current	For No. of Wires	Wire Connection Type	For Wire Gauge	OD	For Panel Cutout Dia.	Lg.	Color	Features	Temp. Range, °F		Each
48V DC	40A	2/3	Screw Terminals	10-8	1.1"	1.1"	1.9"	Black	Locknut, Watertight Cap	-5° to 265°	0000000	000000