This Harmony XB4, Emergency stop 40mm mushroom red button head operates with a latched key-to-release (key no.455) mechanism. This emergency stop / shutdown button head, is easily combined with contact blocks and installed into standard 22mm diameter cut-outs and connected with simple screw-clamp connections. It is clearly distinguishable visually at a distance thanks to a clear color and a prominent 40mm mushroom shape. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66 / IP67 / IP69 / IP69K. It has a metal bezel, this makes it Ideal for applications requiring high impact and vibration resistance. It is designed to fit in a standard 22mm cutout, ensuring compatibility when installing in pre-existing machinery. Secure machine and system operation with a key, only available to authorized operators. Its wide range of operating temperatures from -40°C to 70°C allows versatility in usage of product.

Brand

Schneider Electric

Range

Harmony XB4

Part No

ZB4BS944

Weight (kg)

0.10 kg

Type

Harmony XB4

Spring-return

FALSE

Colour front ring

Chrome

Hole diameter

22.5

Material front ring

Metal

Diameter cap

40

Switching function latching

TRUE

Suitable for emergency stop

TRUE

Type of button

High

Unlocking method

Key-release

Construction type lens

Round

Colour button

Red

With front ring

TRUE

Suitable for illumination

FALSE

Degree of protection (IP)

IP66

Degree of protection (NEMA)

13