KSA0M331 LFTR

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C&K KSA0M331 LFTR

C&K KSA0M331 LFTR — C&K KSA0M331 LFTR

Tactile Switches Switch Tact Spst Vert Flux Seal

Specifications

Lead time
0 Days
Mouser part number
611-KSA0M331LFT
Rohs status
RoHS Compliant

Installation Quick Reference

Panel cutout: 22mm. Insert from the front of the panel, secure with mounting nut from behind (tighten to 2-3 Nm).

Contact block: Snap or screw the contact block onto the rear of the button body. Ensure the contact block orientation matches the wiring diagram — NO terminals are usually marked.

Wiring: Use 0.5-2.5mm² stranded wire with ferrules. Tighten screw terminals to 0.8 Nm. Test the button function before energizing the circuit.

Dimensions

Troubleshooting

Button doesn't respond when pressed

Check the contact block first — it's the most common failure point. Test continuity across the NO or NC terminals with a multimeter. If no click is felt, the return spring in the head may be broken.

Works intermittently

Contact block contacts are pitted or burned. Replace the contact block — don't try to file the contacts. Check if the rated cycle count has been exceeded.

Button feels mushy or doesn't click

The spring return mechanism in the button head is worn. Replace the head. The contact block can usually be reused if it tests OK.

Where to Buy

Price range

$0.83 — $0.83

across 1 distributors

Quick Specs

Lead time
0 Days
Mouser part number
611-KSA0M331LFT
Rohs status
RoHS Compliant