New Sizes for Type 12 Mild Steel Miniature Pushbutton Enclosures

MPB Series

January 16, 2023

Pushbutton Enclosures
Type 12 Mild Steel Miniature Pushbutton Enclosures – MPB Series

New Sizes for Type 12 Mild Steel Miniature Pushbutton Enclosures


  • Designed to accept 22mm miniature oil tight pushbuttons, switches and pilot lights.
  • Provides protection from dirt, dust, oil and water.


  • UL 508A Type 12 and 13
  • CSA Type 12 and 13
  • Complies with
    • NEMA Type 12 and 13
    • IEC 60529, IP54
  • Appropriate components are required to maintain these standards.


  • formed 14 gauge steel except the MPB1 which is 16 gauge.
  • Smooth continuously welded seams.
  • Welded brackets provide for enclosure mounting.
  • Captive cover screws thread into sealed wells.
  • Larger enclosures provide internally hinged removable covers, designed to hold the cover open during wiring (see table).
  • Oil resistant gasket and adhesive.
  • A bonding stud is provided on the door and a grounding stud is provided on the enclosure.


Offered in 2 colors – Cover and enclosure are phosphatized and finished in (a) ANSI 61 gray or (b) RAL7035 light gray powder coating.


  • Hole Plugs
  • Pedestal and Base
  • General Accessories

New and improved PDF drawing files with more detail now available. Click a part number in the table below to access PDF, DXF, and STEP files

Click Part No, below, for details (e.g., Product drawings, assembly instructions, ship weight)

Units shown: inch. Switch units to: mm

ANSI 61 GrayRAL7035 Light GrayNo. ofEnclosure
Part No.Part No.HolesHWD
¹ Not hinged

Learn more about the new sizes for Type 12 Mild Steel Miniature Pushbutton Enclosures

Related Product

Type 4X Stainless Steel Junction Box C4XSC Series from Hammond Manufacturing

  • Designed for use as a wiring box, junction box, terminal or pull box in indoor or outdoor applications where subject to hose down/precipitation or corrosion
  • UL 508A Listed; Type 3, 4X, 12
  • cULus Listed per CSA C22.2 No 94; Type 3, 4X, 12
  • Complies with
    • NEMA Type 3, 4X and 12
    • IEC 60529, IP66

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