The ZB4BZ2005 is a yellow plastic guard intended for use with Ø 40 mm emergency stop push-buttons in the Harmony XB4 and Harmony XB5 product ranges. This protection accessory is constructed from plastic and provides an IK05 degree of impact protection. It is designed to function across a wide ambient operating temperature range of -40°C to 70°C. The guard helps prevent accidental actuation of emergency stop controls, thereby enhancing safety in industrial environments.