Mounting type: Panel mounting
Reset type: Turn release
Cut-out diameter: 22 mm
Operating current: 550 (dc) mA, 6 (ac) A
Protection class: IP66, IP69, IP69K
Supply voltage: 600 V ac/dc
Head shape: Mushroom
Illuminated: No
Range: Harmony
Head diameter: 40 mm
Width: 40 mm

All heads require a housing or mounting flange as well as a contact housing. Emergency stop head Harmony ZB4B. The Harmony XB4 metal series of modular control and signaling devices combines easy installation, flexibility, and robustness. This series meets the requirements of most industrial applications. These units are either complete items or individual components for customer assembly. Harmony XB4 is easy to install: mounting by a single installer (self-holding of the head in its cut-out). Plug-in component system (head, body, contact blocks, and LED). Fastening with a single locking screw and release safety for screw terminals on contact blocks. The locking system consists of a snap-fit assembly of pushbutton head and housing, which is tightened with a single screw, allowing for relatively simple and secure mounting. The Harmony XB4 series meets the most demanding international standards and approvals. The operating temperature range varies from -40 °C to +70 °C for outdoor applications. There are many possibilities for where this series of products can be used. From industry (machines, control panels in packaging, material handling, processing, and conveying) to food and beverage, automotive, mining, and water treatment. Other environments include power distribution panels, public construction works, restaurants, commercial buildings, or airports.