What is the metal push button switch
Metal push button switches are electromechanical devices used to start or interrupt electrical circuits, characterized by their sturdy build and often being applied in demanding settings. Here is a relevant introduction:
Basic Characteristics
- Material: The shell of metal push button switches is often made of stainless steel, brass, or aluminum alloy. Stainless steel is highly favored for its anti - rust and anti - corrosion properties.Shell Material: Stainless - steel shells, such as 304 stainless steel, have good corrosion - resistance and are suitable for outdoor and industrial environments with high corrosion risks. Zinc - alloy shells are also commonly used, but in some cases, they may need additional surface treatment to enhance corrosion - resistance.
- Actuation Types: They mainly include momentary and latching types. Momentary switches will bounce back after pressing, which is suitable for scenarios like doorbells. Latching switches will remain in the pressed state until being pressed again, which is commonly used for power switches.
- IP Rating: Many metal push button switches have high IP ratings, such as IP65 or IP67, which endow them with good dust - proof and water - proof capabilities, so they can be used in outdoor, industrial, and other harsh environments.
Main Specifications
- Electrical Rating: General momentary metal push button switches can withstand electrical loads such as 5A 250VAC, and their electrical life can reach 50,000 times or more, and the mechanical life can reach 100,000 times to 2,000,000 times.
- Installation Dimensions: Metal push - button switches are often installed on panels. Common hole diameters include Φ12mm, Φ16mm, Φ19mm, Φ22mm, Φ25mm, Φ30mm, Φ 40mm, etc. You need to measure the available installation space and refer to the panel - cutout dimensions required by the switch product to ensure a proper fit.