AT4178JB - 

This miniature pushbutton switch is available in momentary or latching actions. Choice of square, round or rectangular bezels and caps to fit panel design. Bright LED lamp may be changed from the front of the panel. Snap-action mechanism provides audible and tactile feedback. Molded terminals seal out flux, dust and other contaminants.
Features:

Carefully designed light diffusion and filtering system produce bright, full surface illumination with front panel relamping.

Spot illumination available in single and bicolor LEDs.

Choice of super bright LEDs in white, green, and blue in addition to standard or bright red, amber, and green LEDs.

Non-illuminated models available.

Stainless-steel clips provide secure mounting with a wide range of panel thicknesses.

Latch-down feature gives indication of circuit status. Audible and tactile feedback with smooth and responsive operation.

Snap-action contact mechanism gives long electrical life and sensitivity of actuation.

Combination solder lug and .110" quick connect terminals are epoxy sealed to prevent entry of flux, dust, and other contaminants.

Panel sealed model meets IP 65 of IEC 529 specifications (similar to NEMA 4 & 13).

Compact switch design minimizes behind panel depth.