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Date: April 15-19th
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What is an emergency stop push button switch?
Emergency stop switch, also known as emergency stop switch, emergency switch, kill switch or emergency button, emergency stop button switch, is a fail-safe control switch that provides safety protection for machinery and equipment. People who use machines.
specify the following requirements: Emergency stop switches must be highly visible in colour, labeling and shape for easy operation in emergency situations. So the button has to be a red mushroom head with an arrow, emergency or stop symbol.
Common sizes for mushroom heads are 29mm, 30mm, 40mm or 60mm. The direct operating mechanism must be set on a normally closed contact and have a self-holding function. It requires a twist, pull or key to release the electrical contacts to allow the machine to restart.
Emergency Stop Button (E-stop for short) is an emergency stop device, usually used in mechanical and automation systems to prevent accidental injury or equipment damage. The following are the main functions and features of the emergency stop button in production:
effect:
Emergency stop: When a dangerous or unexpected event occurs, press the emergency stop button to stop the machine or equipment immediately to prevent further injury or equipment damage.
Convenient operation: The emergency stop button is usually located in an easily accessible position of the machine or equipment, and is generally easy to identify and operate.
System safety: By using the emergency stop button, it can reduce the negligence and error of the system operator and help ensure the safety of the system.
Protection equipment: the emergency stop button can automatically cut off the power supply in case of equipment overload, overheating, overvoltage, etc., so as to protect the equipment from damage.
characteristic:
Independent control: The emergency stop button is usually not related to the control of other equipment, and has an independent circuit to ensure that the machine or equipment can be stopped immediately under any circumstances.
Easy reset: Once the emergency stop button is pressed, it must be reset manually to restart the machine or equipment. This can prevent the machine or equipment from restarting in an unsafe state.
Reliability: The emergency stop button must be reliable, operable, and highly reliable and durable to ensure that it can work normally when needed.
Standardization: The color and shape of emergency stop button are generally standardized to facilitate identification and operation, and comply with relevant safety standards and regulations.
Classified according to the purpose and structure of the contact
(1) Normally open button
(2) Normally closed button
(3) Compound button classified according to operation mode and protection mode Buttons can be classified according to operation mode and protection mode, common button categories and characteristics:
(1) Open type: suitable for embedded and fixed on the panel of switch board, control cabinet or console.
(2) Protective type: with a protective shell, which can prevent the internal button parts from being mechanically damaged or people touching the live parts.
(3) Waterproof type: with a sealed shell, which can prevent rainwater from intruding.
(4) Anti-corrosion type: it can prevent the intrusion of chemical corrosive gases.
(5) Explosion-proof type: It can be used in places containing explosive gas and dust without causing explosion transmission, such as coal mines and other places.
(6) Illuminated button: There is a signal light inside the button, which is not only used to issue operation commands, but also serves as a signal indicator, and is mostly used on the panels of control cabinets and consoles.
(7) Key type: Insert and rotate with a key to operate, which can prevent be operated by a special person.
(8) Emergency type: There is a big red mushroom button protruding outside, which is used to cut off the power supply in case of emergency.
(9) Self-holding button: The button is equipped with a self-holding electromagnetic mechanism, which is mainly used in power plants, substations or test equipment. Operators communicate with each other and issue instructions, etc., and are generally panel-operated.
(10) Knob type: The contact is operated by rotating the handle, with two positions of on-off, generally panel-mounted.
(11) Combined type: combination of multiple buttons. (12) Interlocking type: Multiple contacts interlock with each other. Code-named off, on.
The main technical parameters
Switch rating: ac-15 36v/10a 110v/10a 220v/5a 380v/2.7a 660v/1.8a dc-13 24v/4a 48v/4a 110v/2a 220v/1a 440v/0.6a
Conventional thermal current: 1th 10a
Electric shock Resistance: ≤50mΩ
Insulation resistance: ≥10mΩ
Mechanical life: general button n≥100×10 times; knob ≥30×10 times.
Key button n≥5×10 times; emergency stop button ≥5×10 times
Waterproof push button switches, as the name suggests, are switches that can be operated with wet hands. In some humid environments, Waterproof switch from Gaoqiao manufacturer can be used with confidence because it has good sealing performance. The highest IP rating of the waterproof switch is IP68. The waterproof button switch has a reasonable design, long service life, high temperature resistance, and current shock resistance, which can meet your specific use needs.
Precautions
The specific application of these waterproof switches is restricted by many factors, such as the installation method and the installation direction of the product, the pressure difference of the airflow acting on the product, the strength of the fluid rebound and the working voltage. We also need to prevent the intrusion of corrosive gases or the intrusion of substances.
The waterproof metal switch cooperates with the circuit breaker to perform switch operations according to the needs of the system operation mode, and change the system operation wiring mode.
