Schmersal NDR Series, Pull Release, Emergency Stop Push Button Head / 7420763

This NDRR50GR/RT 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 black •Colour of the front ring is silver The ambient temperature for this amazing 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) The push button has no snap mechanism integrated in device head, therefore there is a requirement to use the external snap mechanism. Frequently asked questions & answers What is the different between a push button switch for an emergency stop and a general-purpose push button switch?A general-purpose push button switch is used for controls, e.g. to start machine operation or simply to switch modes. An emergency stop push button switch however, is mainly used as a safety measure to stop hazardous events.