MORRIS PRODUCTS ROLLER BALL CONTACTS OPEN CIRCUIT IN INDIA

Morris Products Roller Ball Contacts Open Circuit On. This Morris Products roller ball contact is a plunger contact for opening and closing a low voltage circuit. It is an open circuit-on contact for activating a light or alarm when a door or window is opened. It has a closed plastic housing for resistance to dust and corrosion and it has a maximum voltage of 48 VAC. This roller ball contact is suitable for use with security and alarm systems signaling circuits and other low voltage switching applications.Automatic switches are used to turn on or off electrical devices and are activated by time light and motion. Time-activated switches (also known as timers) operate at preset time intervals during a daily or weekly period and can be either mechanical or electronic. Mechanical timers feature a dial with multiple pins to set the on off time intervals. Electronic timers feature an LCD display and pushbuttons to set the time intervals. Light-activated switches (also known as optical or photo) operate when ambient light levels reach preset values generally measured