AC Socket Panel Mount

This panel mount outlet is a black, snap-in receptacle for a US-style three-prong plug, Blue Alpine part E00113-00, at $2.99. It goes into a cutout in a panel rather than a wall box. Snap-in means the body has spring latches that grip the edge of that cutout.

Safety first: this is a mains part. Work on it only with the machine unplugged, and if you’re not comfortable with mains wiring, have a qualified person do the job.

How a panel mount outlet differs from a wall outlet

A household receptacle sits in an electrical box and screws to a metal strap. A panel mount outlet pushes through a rectangular hole in sheet metal or plastic, with its face flush or nearly flush with the panel. Electrically it’s the same idea: contacts for hot, neutral and ground. What changes is how it’s held in, and that’s where most ordering mistakes happen.

Matching your old socket

• Look at the face. The plug pattern should match our photo: two flat slots and a ground hole.
• Measure the cutout, width and height, plus the thickness of the panel. Snap-in latches only grip within a certain range of thickness.
• Check how the old one is held. Latches, or screw ears on a flange?
• Note the terminals on the back: how many, and whether they’re spades, screws or solder tabs.
• Read any rating molded or printed on the body.

If your old socket shows a current rating, phone us on +1 (443) 514-5708 and we’ll confirm this panel mount outlet matches before you order. Don’t fit a lower-rated socket because it happens to fit the hole.

The NEMA connector article is a good reference for the different US plug and socket patterns, if you want to compare yours.

Getting the old panel mount outlet out

Unplug the machine first. Snap-in sockets usually come out through the front: reach behind the panel, squeeze the latches inward and push the body forward through the cutout. A small flat screwdriver helps where fingers won’t reach. Depending on access, you may need to free the socket before the wires come off, or the other way round. Old plastic latches get brittle and can snap during removal. It’s being replaced anyway, but pick out any broken bits so nothing rattles around later.

Wiring the panel mount outlet

Photograph the back before you touch a single wire, with every terminal in the shot. Label the wires with tape if the colors aren’t obvious. Then connect the new socket exactly as the old one was: hot to hot, neutral to neutral, ground to ground. On US three-prong outlets the two flat slots usually differ in width, and the wider one is neutral.

A swapped hot and neutral will still power most things. That’s why it slips past people, and why it’s worth getting right the first time.

Ground matters most. That third contact gives fault current a path to earth instead of through whoever is touching the equipment. Never leave the ground terminal empty, and never use a socket with a damaged ground contact.

Signs a panel mount outlet is worn out

Sockets wear even when they look fine. If a plug slides in with almost no resistance, or falls out under its own weight, the contacts inside have lost their spring. That means poor contact, and poor contact means heat. Cracks in the face are another reason to replace it. So is any movement of the body in the panel once the latches are seated.

When the socket isn’t the problem

Brown or melted plastic around the slots usually means a poor connection got hot. Replace the panel mount outlet, but also look at the plug that was in it. A scorched plug will damage a new socket quickly.

Working on the power side of things? The 14 AWG power cord and our other electrical spares are listed by Blue Alpine part number. For anything about fit, the support page is the quickest way to reach us.