Silver contact dual control switch refers to the separate control of two positions in a device. Dual Dual control refers to two keys that have no position on two panels. A total of two power supplies can be controlled to achieve the same control in different locations. Equipment. Single-connected double-control switch Principle Single-connected double-control switches are actually two single-pole double-throw switches in series, which are then connected to the circuit.

The three terminals of each single-pole double-throw switch are connected to two silver contacts and a knife. Let's take a look at the difference between different types of switches on silver contacts.

Single-double control switch connection Connect the two contacts of the two single-pole double-throw switches respectively, and then connect the two switches to the ends of the lights at both ends of the entire switch. When the switch is connected to each contact at the same time, the circuit opens and the light lights up. If one of the two switches touches the contact and the other touches the contact, the circuit is blocked and the indicator light goes out.

Both switches can control the light. Two switches can be placed at the upper and lower ends of the stairs or at both ends of the corridor so that you can turn on the lights before entering the corridor and turn them off at the other end after crossing the corridor, both to illuminate and to avoid wasting light. Electricity.

Silver contact

Silver contact dual dual-control switch principle The definition of double-control switch is similar to the definition of single-double control switch. The only difference is that a double connection is a 2 button switch, while a single connection is just a 1 button switch.

So what is a dual-control switch? In fact, this is very simple, that is, on a panel, two power devices are controlled by two buttons, that is, two switches control two circuits.

The wiring of the double control switch connects the middle terminal of one double control switch to the firewire, then connects the middle terminal of the other double control switch to the base (or the center tongue of the screw base), and then connects the return oil pipe. That is, the upper and lower terminals are connected with two green cables.

The neutral wire is connected directly to another contact of the lamp holder (or the thread of the nut) to complete the connection.