NDRR50RT, Schmersal Panel Mount Emergency Button - Key Reset, 22.3mm Cutout Diameter Round Head

NDR Series Emergency Stop Push Buttons

This range of Head Emergency Buttons are used in control cabinets, control panels, in elevator construction, on conveyor or transport plants.
After the manual actuation, the components initiate or switch off work processes and functional processes.
The range of NDR Series Emergency Stop Push Buttons are available in the form of pushbuttons, joystick switches or key-operated switches.
They are available in a single, dual and tri state contact blocks.
There is an option to have N/O (normally open) and N/C (normally closed) contact versions to satisfy every requirement.

Approvals

BG, USA/CAN

Standards

IEC/EN 60947-1, EN 60947-5-1

Standards

IEC/EN 60947-1, EN 60947-5-1

Approvals

BG, USA/CAN

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)

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.

NDRZ50RT Data Sheet

Machine Guarding and Safety Range Overview