Siemens 3SB3 Series Red Mushroom, Latching Actuation, 22mm Cutout

This unique portfolio of Siemens 3SB3 series is a modular range of commanding and signalling devices for front plate mounting and rear conductor connection.
The 3SB3 series are round and have a mounting diameter of 22 mm and their actuator is supplied with a holder.
Complete units are offered, but only for the most commonly used applications.
This amazing range has the following standards:
•IEC 60947-1, EN 60947-1, IEC 60947-5-1, EN 60947-5-1, IEC 60947-5-5, EN 60947-5-5 for EMERGENCY-STOP mushroom pushbuttons

These units are available with screw terminals (box terminals), spring-type terminals or solder pins.

•molded plastic in flat, wound and square design

They can be mounted by a single person and are climate-proof (KTW 24) to suit industrial applications.
Their main purpose of existence is to act as safety emergency-stop pushbuttons and their switching frequency is approximately 1000 operating cycles.

This 3SB3500-1JA20 mushroom pushbutton has the front ring made of metal and their primary function is emergency-OFF.
The mechanical operating cycles as operating time is up to 300000 cycles.
The ambient temperature during the operating phase ranging from -25°C to +70°C, during storage however ranging from -40°C to +80°C.
The Emergency Stop Mushroom Pushbuttons represents worldwide standards, in particular:
IP67 where a device can withstand immersion in one meter of water for 30 minutes.

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

This product is in obsolescence mode and is due for discontinuation by the manufacturer. We recommend that you review the new pushbutton range SIRIUS ACT which is the alternative range proposed by the manufacturer. Please refer to the 3SB3 / SIRIUS ACT cross-reference guide located in the technical reference section.