Bell Push

A Bell Push switch is a signalling device typically placed in entry door of the building. The product is available in 1 or 2 modules. The current rating differs according to the type of product. it is generally used in homes, offices, schools, etc.

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Detailed Description for Bell Push

 

        A doorbell is a signaling device typically placed near an entry door to a building. When a visitor presses a button the bell rings inside the building, alerting the occupant to the presence of the visitor.Pressing the doorbell button, a single-pole, single-throw (SPST) pushbutton switch momentarily closes the doorbell circuit. One terminal of this button is wired to a terminal on a transformer. A doorbell transformer steps down the 120 or 240-volt AC electrical power to a lower voltage, typically 10 to 20 volts. The transformer's other terminal connects to one of three terminals on the signaling device.

                                                                                    

       Another terminal is connected to a wire that travels to the other terminal on the button. Some signaling devices have a third terminal, which produces a different sound. If there is another doorbell button (typically near a back door), it is connected between the transformer and the third terminal.The transformer primary winding, being energized continuously, does consume a small amount (about 1 to 2 W) of standby power constantly; systems with lighted pushbutton switches may consume a similar amount of power per switch.The tradeoff is that the wiring to the button carries only safe, low voltage isolated from earth ground.

 

      In recent decades, wireless doorbell systems that do not require wall wiring have become popular. The doorbell button contains a built-in radio transmitter powered by a battery. When the button is pushed, the transmitter sends a radio signal to the receiver unit, which is plugged into a wall outlet inside the building. When the radio signal is detected by the receiver, it activates a sound chip that plays the sound of gongs through a loudspeaker—either a two-note "ding-dong" sound or a longer chime sequence such as Westminster Quarters. To avoid interference by nearby wireless doorbells on the same radio frequency, the units can usually be set by the owner to different radio channels.

 

Mechanical bell systems:

Large houses and estates often had complicated mechanical systems to allow occupants of any room to pull a bell pull and ring a bell at a central bell panel in the staff quarters, to summon them.

 

Common Features:

1.        Flame retardant

2.        UV Stabilized and unbreakable polycarbonate material

3.       Child Proof sockets for extra protection

4.       Rust free Powder coated Switch Plates

5.       Smooth finish, crystal clear hardened glass plate


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