The ABB JSHD4H2 is a three-position dual pushbutton with IP65 protection, usually mounted on another device, e.g. a robot pendant. The housing is PP (polypropylene with mineral filling)
rubber is a thermoplastic elastomer on PP basis and steering T is PP with fiberglass filling.
Mechanical service life of 1 million cycles for top to middle position Mechanical service life of 100,000 cycles for middle to bottom position and top/front push button