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. Solder connections are the most secure and permanent connection.
IP68-Rated Connectors—Create a sealed connection when the plug and socket, receptacle, or adapter are also IP68 rated. All are dust tight, even when there’s continuous airflow. They also withstand submersion in water for more than 30 minutes.
Receptacles—Mount them in a panel. Receptacles with an off (Normally Open) circuit position turn equipment on when you plug in a device. Receptacles with an on (Normally Closed) circuit position have an internal switch, or shunt, to transfer power from one component to another when you plug in a device. They’re often used with equipment that can run on either battery or wall power, switching off the battery connection when you plug into the wall. You can also use them to turn on a light inside the device when you plug it in.
Adapters—Convert to the right barrel size for your connection.

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 |

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 |

Black | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
End ID, mm | End OD, mm | End Length, mm | Number of Poles | Voltage | Current, A | For Wire Gauge | For Max. Cable OD, mm | OD, mm | Lg., mm | Housing Material | Temp. Range, °F | Each | |
1.3 | 3.5 | 9.5 | 2 | 12V DC | 5 | 24, 22, 20, 18 | 4.5 | 9 | 44 | Plastic | -10° to 140° | 00000000 | 00000 |
2 | 5.5 | 24.7 | 2 | 24V DC | 11 | 20 | 5.5 | 8.5 | 51.8 | Rubber | -40° to 220° | 0000000 | 00000 |
2.1 | 5.5 | 9.5 | 2 | 12V DC | 5 | 24, 22, 20, 18 | 4.5 | 9 | 33.2 | Plastic | -10° to 140° | 00000000 | 0000 |
2.5 | 5.5 | 9.5 | 2 | 12V DC | 5 | 24, 22, 20, 18 | 4.5 | 9 | 33.2 | Plastic | -10° to 140° | 00000000 | 0000 |


End ID, mm | End OD, mm | End Length, mm | Number of Poles | Voltage | Current, A | For Wire Gauge | For Max. Cable OD, mm | OD, mm | Lg., mm | Housing Material | Housing Thread Location | Temp. Range, °F | Each | |
Black | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2.1 | 5.5 | 9.5 | 2 | 48V DC | 5 | 20 | 5.5 | 9.5 | 43.2 | Plastic | Internal | -40° to 85° | 0000000 | 00000 |
2.5 | 5.5 | 9.5 | 2 | 48V DC | 5 | 20 | 5.5 | 9.5 | 43.2 | Plastic | Internal | -40° to 85° | 0000000 | 0000 |
Red | ||||||||||||||
2.1 | 5.5 | 9.5 | 2 | 48V DC | 5 | 20 | 5.5 | 9.5 | 43.2 | Plastic | Internal | -40° to 85° | 0000000 | 0000 |
2.5 | 5.5 | 9.5 | 2 | 48V DC | 5 | 20 | 5.5 | 9.5 | 43.2 | Plastic | Internal | -40° to 85° | 0000000 | 0000 |

Screw-Together Plug
with Solder Connection
Black | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
End ID, mm | End OD, mm | End Length, mm | Number of Poles | Voltage | Current, A | For Wire Gauge | For Max. Cable OD, mm | OD, mm | Lg., mm | Housing Material | Housing Thread Location | Temp. Range, °F | Environmental Rating | Each | |
2 | 5.5 | 24.7 | 2 | 24V DC | 11 | 20 | 3.8 | 12.7 | 63.3 | Rubber | Internal | -40° to 220° | IP68 | 0000000 | 000000 |
2 | 5.5 | 24.7 | 2 | 24V DC | 11 | 20 | 4.4 | 12.7 | 63.3 | Rubber | Internal | -40° to 220° | IP68 | 0000000 | 00000 |
2 | 5.5 | 24.7 | 2 | 24V DC | 11 | 20 | 5.3 | 12.7 | 63.3 | Rubber | Internal | -40° to 220° | IP68 | 0000000 | 00000 |

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 |

Mounting Thread | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Plug End ID, mm | For Plug End OD, mm | Number of Poles | Voltage | Current, A | For Wire Gauge | OD, mm | Lg., mm | Housing Material | Housing Thread Location | For Panel Cutout Dia., mm | Size | Type | Temp. Range, °F | Environmental Rating | Each | |
Off (Normally Open) | ||||||||||||||||
2 | 5.5 | 2 | 24V DC | 13 | 20 | 11.9 | 36.3 | Nickel-Plated Brass | External | 8 | 5/16"-32 | UNEF | -40° to 220° | IP68 | 0000000 | 000000 |

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 |

with Solder Connection
and Off Circuit Position

with Solder Connection
and On Circuit Position
Mounting Thread | Black | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Plug End ID, mm | For Plug End OD, mm | Number of Poles | Voltage | Current, A | For Wire Gauge | OD, mm | Lg., mm | Housing Material | Housing Thread Location | For Panel Cutout Dia., mm | Size | Pitch, mm | Features | Temp. Range, °F | Each | |
Off (Normally Open) | ||||||||||||||||
1.3 | 3.5 | 2 | 12V DC | 5 | 24, 22, 20, 18 | 10.8 | 21 | Plastic | External | 8 | M8 | 0.75 | __ | -10° to 140° | 00000000 | 00000 |
2.1 | 5.5 | 2 | 12V DC | 5 | 24, 22, 20, 18 | 10.6 | 19.9 | Plastic | External | 8 | M8 | 0.75 | __ | -10° to 140° | 00000000 | 0000 |
2.5 | 5.5 | 2 | 12V DC | 5 | 24, 22, 20, 18 | 10.8 | 21.4 | Plastic | External | 8 | M8 | 0.75 | __ | -10° to 140° | 00000000 | 0000 |
On (Normally Closed) | ||||||||||||||||
2.1 | 5.5 | 2 | 12V DC | 5 | 24, 22, 20, 18 | 10.8 | 21.4 | Plastic | External | 8 | M8 | 0.75 | Internal Switch | -10° to 140° | 00000000 | 0000 |
2.5 | 5.5 | 2 | 12V DC | 5 | 24, 22, 20, 18 | 10.8 | 21.4 | Plastic | External | 8 | M8 | 0.75 | Internal Switch | -10° to 140° | 00000000 | 0000 |

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 |
Caps for Harsh Environment Micro M12 Screw-Together Connectors


Protect harsh environment M12 connectors when not in use. These caps are stainless steel for excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Caps for Micro M12 Screw-Together Connectors


Protect M12 connectors when not in use.
For technical drawings and 3-D models, click on a part number.