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AB 22MM 2 POS KEY SPRG RET LFT RM LFT

AB 22MM 2 POS KEY SPRG RET LFT RM LFT
Part # : C.AB22.MKR21
Weight: 0.04 LB
Any
ALLEN-BRADLEY 22MM TWO POSITION SPRING RETURN KEY SELECTOR SWITCH. Key removal left. Uses Key 3825.

AB 22MM 2 POS KY MN/MN KY REM LEFT STD

AB 22MM 2 POS KY MN/MN KY REM LEFT STD
Part # : C.AB22.MKM21
Weight: 0.04 LB
Any
ALLEN-BRADLEY 22MM TWO POSITION MAINTAINED/MAINTAINED KEY SELECTOR SWITCH. Key removal left. Uses Key 3825.

AB 22MM 3 POS KY RM CENTER MM/MN/MM

AB 22MM 3 POS KY RM CENTER MM/MN/MM
Part # : C.AB22.MKB34
Weight: 1 LB
Any

22.5mm Key Switches for Industrial Compactor Panels

Replacement 22.5mm (22mm) key-operated switches for industrial trash compactor control panels — the modern industrial standard. 2-position and 3-position operator-authorization switches. Compatible with Schneider Harmony XB5, Siemens 3SU, Allen Bradley 800F, and Eaton M22 panel systems.

What this page covers

22.5mm is the modern global standard for industrial key switches — used on most post-2015 compactor and machine control panels. Major brand families (Schneider Harmony XB5, Siemens 3SU, Allen Bradley 800F, Eaton M22) all share the 22.5mm panel cutout.

PRT stocks 22.5mm key switches in 2-position and 3-position configurations with standard contact block options.

How to choose

Match by position count (2 or 3), key code (standard or custom), and contact block configuration.

For multi-site operations, specify keyed-alike when ordering.

In stock options

  • 2-position 22.5mm key switchOff/on operator authorization.
  • 3-position 22.5mm key switchOff/manual/auto for mode-selectable compactors.
  • Standard key codeCommon keyed-alike default.
  • Custom key codeUnique codes for high-security installations.
  • Schneider XB5 compatibleDrops into Schneider Harmony panels.
  • Siemens 3SU compatibleDrops into Siemens panels.
  • Allen Bradley 800F compatibleDrops into Allen Bradley panels.

Frequently asked questions

Is 22mm the same as 22.5mm key switch size?

Yes. The panel cutout is 22.5mm; manufacturers label products either 22mm or 22.5mm interchangeably. They fit the same panel cutouts.

Are PRT 22.5mm key switches compatible with Schneider Harmony XB5?

Yes. The 22.5mm panel cutout is industry-standard. PRT key switches fit Schneider Harmony XB5, Siemens 3SU, Allen Bradley 800F, Eaton M22, and other 22.5mm panel systems.

Can I replace a Schneider XB5 key switch with a PRT key switch?

Yes. PRT 22.5mm key switches use the same panel cutout and contact-block geometry as Schneider XB5.

What's the difference between a 30mm and 22.5mm key switch?

Panel cutout size. 30mm is the older classic industrial standard; 22.5mm is the modern global standard. Not interchangeable — the panel hole determines which fits.