What the Category Means for Fit
"Medium duty" in the limit switch world typically defines the mechanical endurance (around 10 million cycles) and the body construction — often metal or reinforced plastic, with a range of interchangeable heads (plunger, roller lever, rod). The XCKP2102P20 carries a 12-digit UPC (389119078026) confirming it's a standard retailable SKU, not a custom or special-order variant. For a controls integrator, that means the part number on the panel drawing matches what arrives in the box — no last-minute substitution call.