{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "panel-cutouts",
 "name": "Panel cutouts: IEC inlet, rockers, barrel jack, USB-C, HDMI, LEDs, Neutrik D",
 "kind": "hardware",
 "category": "Hardware",
 "group": "Panel & connectors",
 "year": null,
 "question": "What size cutout does an IEC C14 power inlet need?",
 "tags": [
  "cutout",
  "panel",
  "enclosure",
  "connector",
  "switch"
 ],
 "aliases": [
  "iec c14 cutout",
  "iec inlet hole size",
  "kcd1 cutout",
  "rocker switch hole",
  "barrel jack panel hole",
  "neutrik d cutout",
  "led hole size"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 10,
 "url": "https://xemstudio.com/objects/panel-cutouts/",
 "sheet_txt": "https://xemstudio.com/objects/panel-cutouts/sheet.txt",
 "sheet": {
  "basis": "Manufacturer drawings for the common enclosure parts (IEC 60320 C14, KCD1/KCD4 rockers, DC-022 jack, Neutrik D-series); each file is a 2 mm test plate with the cutout",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "IEC C14 snap-in: 27.5 × 19.5 mm (some drawings 27.4 × 19.4) in a 1–1.5 mm panel; screw-mount C14 adds two Ø3.2 holes on 40 mm centres. C13 outlets are larger: 30.5 × 22.5.",
   "KCD1 rocker (the 15 × 21 mm face): 19 × 13 mm cutout, 1–3 mm panel. KCD4 (big illuminated rocker): 30 × 22 mm.",
   "DC-022 panel barrel jack: Ø8 mm hole, M8 thread, panel to 3 mm. 5 mm LED: Ø5.1 press fit. Neutrik D-series (XLR, USB, HDMI, RJ45 modules): Ø24 with two Ø3.2 screw holes 24 mm apart.",
   "Print the test plate before cutting the enclosure; the cutout's clearance is included."
  ],
  "table": {
   "columns": [
    "part",
    "cutout_mm",
    "panel_mm",
    "screw_holes"
   ],
   "rows": [
    [
     "IEC C14 snap-in",
     "27.5 × 19.5",
     "1.0–1.5",
     "none"
    ],
    [
     "IEC C14 screw-mount",
     "27.5 × 19.5",
     "to 3",
     "2 × Ø3.2 @ 40"
    ],
    [
     "IEC C13 outlet",
     "30.5 × 22.5",
     "1.0–2.0",
     "none or 2 × Ø3.2 @ 40"
    ],
    [
     "KCD1 rocker",
     "19 × 13",
     "1–3",
     "none"
    ],
    [
     "KCD4 rocker",
     "30 × 22",
     "1–3",
     "none"
    ],
    [
     "DC-022 barrel jack",
     "Ø8",
     "to 3",
     "none"
    ],
    [
     "USB-C pass-through",
     "10 × 4.5",
     "any",
     "none"
    ],
    [
     "microSD",
     "12 × 2.5",
     "any",
     "none"
    ],
    [
     "HDMI A clearance",
     "16 × 6.5",
     "any",
     "none"
    ],
    [
     "5 mm LED",
     "Ø5.1",
     "1–3",
     "none"
    ],
    [
     "Neutrik D",
     "Ø24",
     "to 3",
     "2 × Ø3.2 @ 24"
    ]
   ]
  }
 },
 "sheet_text": "Panel cutouts: IEC inlet, rockers, barrel jack, USB-C, HDMI, LEDs, Neutrik D — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/panel-cutouts/  (CC BY 4.0)\nBasis: Manufacturer drawings for the common enclosure parts (IEC 60320 C14, KCD1/KCD4 rockers, DC-022 jack, Neutrik D-series); each file is a 2 mm test plate with the cutout\nCatalog version: 2026-10-20\n\nSizes: see table below\n- IEC C14 snap-in: 27.5 × 19.5 mm (some drawings 27.4 × 19.4) in a 1–1.5 mm panel; screw-mount C14 adds two Ø3.2 holes on 40 mm centres. C13 outlets are larger: 30.5 × 22.5.\n- KCD1 rocker (the 15 × 21 mm face): 19 × 13 mm cutout, 1–3 mm panel. KCD4 (big illuminated rocker): 30 × 22 mm.\n- DC-022 panel barrel jack: Ø8 mm hole, M8 thread, panel to 3 mm. 5 mm LED: Ø5.1 press fit. Neutrik D-series (XLR, USB, HDMI, RJ45 modules): Ø24 with two Ø3.2 screw holes 24 mm apart.\n- Print the test plate before cutting the enclosure; the cutout's clearance is included.\n\npart  cutout_mm  panel_mm  screw_holes\nIEC C14 snap-in  27.5 × 19.5  1.0–1.5  none\nIEC C14 screw-mount  27.5 × 19.5  to 3  2 × Ø3.2 @ 40\nIEC C13 outlet  30.5 × 22.5  1.0–2.0  none or 2 × Ø3.2 @ 40\nKCD1 rocker  19 × 13  1–3  none\nKCD4 rocker  30 × 22  1–3  none\nDC-022 barrel jack  Ø8  to 3  none\nUSB-C pass-through  10 × 4.5  any  none\nmicroSD  12 × 2.5  any  none\nHDMI A clearance  16 × 6.5  any  none\n5 mm LED  Ø5.1  1–3  none\nNeutrik D  Ø24  to 3  2 × Ø3.2 @ 24\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Neutrik: D-series chassis connector drawings — PDF, STEP — Neutrik site terms [verify license at link] — https://www.neutrik.com/en/products/audio/xlr/xlr-chassis-connectors\n- Wikipedia: IEC 60320 — web — CC BY-SA 4.0 (text) — https://en.wikipedia.org/wiki/IEC_60320\n- McMaster-Carr: Panel-mount power inlets (free STEP/IGES/STL per part, for your own design use; no redistribution) — STEP, IGES, STL, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/power-inlets/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 10 parts): https://xemstudio.com/files/hardware/panel-cutouts/index.json\nAPI: https://xemstudio.com/api/geometry?object=panel-cutouts\n",
 "sources": [
  {
   "publisher": "Neutrik",
   "title": "D-series chassis connector drawings",
   "url": "https://www.neutrik.com/en/products/audio/xlr/xlr-chassis-connectors",
   "formats": [
    "PDF",
    "STEP"
   ],
   "license": "Neutrik site terms",
   "license_verified": false,
   "hosted": false
  },
  {
   "publisher": "Wikipedia",
   "title": "IEC 60320",
   "url": "https://en.wikipedia.org/wiki/IEC_60320",
   "formats": [
    "web"
   ],
   "license": "CC BY-SA 4.0 (text)",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "McMaster-Carr",
   "title": "Panel-mount power inlets (free STEP/IGES/STL per part, for your own design use; no redistribution)",
   "url": "https://www.mcmaster.com/products/power-inlets/",
   "formats": [
    "STEP",
    "IGES",
    "STL",
    "PDF"
   ],
   "license": "McMaster-Carr site terms: personal design use, no redistribution",
   "license_verified": false,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "16mm-arcade-button",
  "usb-c-receptacle",
  "heat-set-inserts",
  "din-rail-35mm"
 ],
 "faq": [
  {
   "q": "What size hole for an IEC C14 inlet?",
   "a": "27.5 × 19.5 mm for the snap-in type in a 1–1.5 mm panel; the screw-mount type uses the same cutout plus two Ø3.2 holes 40 mm apart."
  },
  {
   "q": "What size hole for a KCD1 rocker switch?",
   "a": "19 × 13 mm, panel 1–3 mm. The big KCD4 rocker needs 30 × 22 mm."
  },
  {
   "q": "What hole size for a panel-mount barrel jack?",
   "a": "Ø8 mm for the common DC-022 / DC-099 5.5 × 2.1 jack (M8 nut); panel up to 3 mm."
  },
  {
   "q": "What is the Neutrik D-series cutout?",
   "a": "Ø24 mm with two Ø3.2 screw holes on 24 mm centres; fits XLR, USB, HDMI, RJ45 and power modules."
  }
 ],
 "files_license": null,
 "offers": [
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   "file": "cutout-iec-c14-snap-in",
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    "step",
    "stl"
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   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-iec-c14-snap-in.step",
   "stl": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-iec-c14-snap-in.stl",
   "note": "IEC 60320 C14 snap-in inlet, 1.0–1.5 mm panel (screw-mount versions use 2 × Ø3.2 at 40 mm)"
  },
  {
   "file": "cutout-iec-c14-screw",
   "formats": [
    "step",
    "stl"
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   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-iec-c14-screw.step",
   "stl": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-iec-c14-screw.stl",
   "note": "IEC C14 screw-mount inlet cutout with 2 × Ø3.2 holes on 40 mm centres"
  },
  {
   "file": "cutout-kcd1-rocker",
   "formats": [
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    "stl"
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   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-kcd1-rocker.step",
   "stl": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-kcd1-rocker.stl",
   "note": "KCD1 rocker switch (15 × 21 face), 1–3 mm panel"
  },
  {
   "file": "cutout-kcd4-rocker",
   "formats": [
    "step",
    "stl"
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   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-kcd4-rocker.step",
   "stl": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-kcd4-rocker.stl",
   "note": "KCD4 rocker switch, 1–3 mm panel"
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  {
   "file": "cutout-dc-022-barrel-jack",
   "formats": [
    "step",
    "stl"
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   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-dc-022-barrel-jack.step",
   "stl": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-dc-022-barrel-jack.stl",
   "note": "panel-mount 5.5 × 2.1 barrel jack (DC-022/DC-099), Ø8 hole, panel to 3 mm"
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  {
   "file": "cutout-usb-c-panel",
   "formats": [
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   "license": "CC BY 4.0 (Xem Studio)",
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   "stl": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-usb-c-panel.stl",
   "note": "USB-C receptacle pass-through, 0.5 mm clearance each side"
  },
  {
   "file": "cutout-microsd-slot",
   "formats": [
    "step",
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   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-microsd-slot.step",
   "stl": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-microsd-slot.stl",
   "note": "microSD push-push slot clearance, 12 × 2.5"
  },
  {
   "file": "cutout-hdmi-a-cutout",
   "formats": [
    "step",
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   "stl": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-hdmi-a-cutout.stl",
   "note": "HDMI type A plug clearance 16 × 6.5 (receptacle 15 × 5.9)"
  },
  {
   "file": "cutout-led-5mm",
   "formats": [
    "step",
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   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-led-5mm.step",
   "stl": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-led-5mm.stl",
   "note": "5 mm LED press fit; 3 mm LED uses Ø3.1"
  },
  {
   "file": "cutout-neutrik-d",
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   "stl": "https://xemstudio.com/files/hardware/panel-cutouts/cutout-neutrik-d.stl",
   "note": "Neutrik D-series universal chassis cutout: Ø24 with 2 × Ø3.2 on 24 mm, panel to 3 mm"
  }
 ],
 "markdown": "https://xemstudio.com/objects/panel-cutouts/index.md"
}