The Schneider Electric Harmony XB4 push-button head is a red emergency-stop mushroom head with a 40 mm diameter and key release. The mechanism latches and locks when activated, and is reset by turning the Ronis 455 key. It has a round, unmarked head and a chrome-plated metal bezel.

• Type: Emergency-stop push-button head
• Color: Red
• Operating mechanism: Latching and locking, with key release
• Key type: Ronis 455
• Key removal position: Center
• Head shape: Round
• Mushroom head diameter: 40 mm
• Marking: Unmarked
• Bezel material: Chrome-plated metal
• Mounting diameter: 22 mm
• Dimensions: 40 mm wide × 40 mm high × 79 mm deep
• Weight: 0.098 kg
• Mechanical durability: 300,000 cycles
• High-pressure washer resistance: 7,000,000 Pa at 55 °C, 0.1 m distance
• IP protection rating: IP66 according to IEC 60529
• NEMA protection rating: NEMA 12, NEMA 4, NEMA 4X, NEMA 13
• IK protection rating: IK03 according to IEC 50102
• Protection class against electric shock: Class I according to IEC 61140
• Vibration resistance: 5 gn (f = 2...500 Hz) according to IEC 60068-2-6
• Shock resistance: 50 gn for 11 ms and 30 gn for 18 ms, according to IEC 60068-2-27
• Operating temperature: -25...70 °C
• Storage temperature: -40...70 °C
• Standards: EN/IEC 60204-1, EN/IEC 60947-1, EN/IEC 60947-5-1, EN/IEC 60947-5-4, EN/IEC 60947-5-5, EN/ISO 13850, IEC 60364-5-53, JIS C 4520, UL 508, GB 14048.5, CSA C22.2 No. 14
• Certifications: BV, CSA, DNV GL, LROS (Lloyd’s Register of Shipping), RINA, UL
• RoHS: Compliant since 0646
• REACH status: Does not contain SVHCs above the reporting threshold
• Product environmental profile: Available
• End-of-life recovery of raw materials: No special measures required