Complete emergency stop button, twist-to-release F40 XB4BS8442

Safety button for harsh industrial conditions

The complete emergency stop button XB4BS8442 from the Harmony XB4 series is a professional solution by Schneider Electric. The device performs the EMS (Emergency Machine Stop) or EMO (Emergency Off) function, enabling the immediate stopping of machines in emergency situations.

Modular design and technical parameters

The button is designed for a 22.5 mm mounting hole diameter, making it compatible with most industrial control panels. The twist-to-release mechanism allows for quick resetting after activation, and the screw connection guarantees secure fastening of installation wires.

The device is equipped with 1 NC (normally closed) contact and no NO (normally open) contacts. The 40 mm mushroom head diameter ensures easy identification and operation, even when wearing work gloves.

IP66 environmental resistance

The button offers an IP66 protection rating, guaranteeing full resistance to dust and pressurized water jets. The construction also provides resistance to impact and vibration.

Application, system compatibility, and reliability

The button is designed for integration into control panels. Thanks to the modular design of the Harmony XB4 series, it can be easily adapted to various applications—from simple production lines to advanced automation systems.

The device is part of the Schneider Electric ecosystem, allowing for integration with other control elements from the same series. The universal design enables rapid mounting and minimizes installation time thanks to standardized dimensions and connection methods.