The VPB-1A is a vandal resistant push switch intercom accessory mounted to a single gang size 12-gauge stainless steel plate. Utilize assembly in conjunction with VPVT and VPCS stations or as a stand alone signaling device when a separate or remotely located call origination button is desired. Switch is a SPST normally open circuit with 3 amp contact rating. Vandal proof hardware installs using a 6–32 holt-head driver bit for a standard 1/4" nut driver.