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Does The Stainless Steel LED Switches Have Two Pairs Of Contacts?

Nov 02, 2017

Does the Stainless Steel LED Switches have two pairs of contacts?
Stainless Steel LED Switches can perform basic controls such as start-up, stop, forward and reverse, speed and interlock. Usually every Stainless Steel LED Switches has two pairs of contacts. Each pair of contacts consists of a normally open contact and a normally closed contact. When the press button, two pairs of contacts at the same time action, two pairs of normally closed contact first disconnected, followed by two pairs of normally open closed.
Stainless Steel LED Switches are available in a variety of types, which can be divided into ordinary button type, mushroom head type, self-locking type, self-resetting type, rotary handle type, with indicator light type, with symbol and key type , Double button, three buttons and different combinations, usually using modular structure, by the button cap, reset the spring, bridge contacts and shells and other components, usually made of composite, a pair of normally closed contact and normally open Head, and some products can be increased by multiple components in series contact logarithm. There is also a self-sustaining button, press it to automatically maintain the closed position, power to open.
Stainless Steel LED Switches Stainless Steel LED Switches are a simple, widely used main appliance. In the electrical automatic control circuit, used to manually send control signals to control contactors, relays, electromagnetic starter and so on.
Stainless Steel LED Switches In fact, there is no uniform definition of the Stainless Steel LED Switches technology, which also accelerates the diversification of waterproofing materials, in general, to prevent rainwater, groundwater, industrial and civil water supply and drainage, corrosive liquids and air In the moisture, steam and other materials into the Stainless Steel LED Switches are basically referred to as waterproof material.
Stainless steel LED Switches are mainly waterproof construction, mainly used for construction, such as roof, external walls, etc .; 911 polyurethane waterproof material, containing volatile gas, construction requirements are strict and expensive; new polymer cement-based waterproof material, The material is composed of organic polymer liquid material and inorganic powder compound, which combines the high elasticity of organic material and the durability of inorganic material. After coating, it is formed with high strength and tough waterproof coating. It is the common industry of stainless steel LED Switches. Choose material.
Resetting Stainless Steel LED Switches Shutdown at zero voltage also reduces turn-off losses, but the MOSFET does not reduce capacitive turn-on losses when turned on at zero current. Resonance conversion quasi - resonant converter device for turning on and off the circuit. The small switch is a small contact switch, hand gently touch on the connected, the factory is often used as a large switch internal short circuit, overcurrent protection.
When the external mechanical force is applied to the operation button, the operation button moves downward and the spring is stretched by the retractor. When the spring is pulled to a certain length, the movable spring moves rapidly downward, and the contact on the right end of the reed is turned into contact with the normally open contact. The unipolar switch should be mounted on the phase line: unipolar The switch should control the phase line and can not be connected to the neutral line. Otherwise, even if the switch off, the human body if the contact phase and neutral line will also lead to electric shock accident. If the phase line grounding, but also a short circuit or even cause a fire.