Schmersal NDR Series Pull Release Emergency Stop Push Button, Panel Mount, 22mm Cutout, IP67, IP69K

This NDRR50RT unit complies with all standards under IEC/EN 60947-1, EN 60947-5-1.
The material of the front ring is chromium-plated with the following colour characteristics:
•Colour of the operating element is red
•Colour of the bellows is white
•Colour of the front ring is silver
This is a non-illuminated product with resistance to shock at 30 g / 18 ms.
The device has a snap mechanism integrated in unit head and the tightening torque for fixing screws should not exceed 0,6 Nm.
The ambient temperature for this unique product ranging from -25°C to +80°C.
Standards of protection falls under IP67 and IP69K where the following can be expected:
•IP67 (rated as "dust tight" and protected against immersion)
•IP69K (rated as ’’complete assurance ’’provides the highest protection rating on the scale)

What is the different between a push button switch for an emergency stop and a general-purpose push button switch?

• Lifts
• Industrial saws
• Conveyor belts

An emergency stop button is specifically designed to halt the operation of machinery to prevent injury and damage. A general push-button switch can be used to start and stop normal operations and is suitable for day-to-day work processes.

Emergency Stop Pushbutton