xyexpb explosion-proof push button / emergency button
xyexpb type explosion-proof push button / emergency button is a kind of intrinsic safety product with dry node signals. it consists of metal button switch or glass break switch and safety barrier, and widely used in petroleum, chemical and other explosive dangerous places.
there are five parts in a whole access control system with an explosion-proof card reader, an explosion-proof magnetic lock, an explosion-proof access controller, an explosion-proof push button and explosion-proo emergency button.