What is an emergency stop push button switch?
An emergency stop switch, also known as an emergency stop switch, emergency stop switch, emergency switch, termination switch or emergency button, emergency stop push button switch, is a fail-safe control switch that provides safety for machinery and equipment. people who use the machine.
The following requirements are set out in the European standard EN 418 and the international standard: ISO 13850: The emergency stop switch must be highly visible in color, label and shape so that it can be easily operated in case of emergency. Therefore the button must be a red mushroom head with an arrow, emergency or stop symbol. Common sizes of mushroom heads are 29 mm, 30 mm, 40 mm or 60 mm. The direct operating mechanism must be set on a normally closed contact and have a self-holding function. It requires twisting, pulling or keying to release the electrical contacts to allow the machine to restart.
02 What is the purpose of the emergency stop pushbutton switch?
An emergency stop push button switch is a safety mechanism used to shut down a machine in an emergency when it cannot be shut down in the usual way. The purpose of the emergency push button switch is to quickly stop the machine when there is a risk of injury or when the work process needs to be stopped. It is designed to avoid injury or reduce existing hazards to people, machinery or work, which is why people also call it a safety push button switch or push button safety switch.
03 How does an emergency stop pushbutton switch work?
The emergency stop pushbutton switch is a critical system component that protects the operator and the machine in a variety of emergency shutdown situations. The emergency stop switch is connected in series with the control circuit of the mechanical equipment. When the mushroom head of the emergency stop button is pressed, it breaks the circuit of the mechanical equipment and disconnects the power supply. The release of the emergency stop switch requires pulling, turning or using a key under strictly authorized operation to ensure personnel and equipment safety and avoid re-injury. Ordinary stop buttons are rated IP54, but waterproof emergency stop buttons are available up to IP65 or IP67.
