Schneider Electric ZB4BC4 22 mm Red Mushroom Head Push Button

Industrial control actuator

The Schneider Electric ZB4BC4 is a 22 mm mushroom-head push button designed for industrial electrical control panels and automation systems. It provides a momentary contact action with a 40 mm red metal head for high visibility in machine interfaces. The metal bezel and head construction suit demanding environments where reliable manual operation is required. It meets NEMA ratings 1, 2, 3, 4, 4X and 13 alongside IP66 ingress protection.

Panel mounting and wiring

The operator mounts in a standard 22 mm cut-out and relies on metal construction for durability against vibration and impact. Compliance with IEC 60947-5-1, IEC 60947-5-4, IEC 60947-5-5, UL 508, CSA C 22.2 No. 14 and DNV supports integration into certified control circuits. The device is RoHS compliant and REACH free of SVHC substances for regulated projects. No legend plate is included so marking must be sourced separately.

Sustained environmental exposure

The IP66 rating and NEMA 4X classification confirm resistance to dust, water jets and corrosion during continuous operation. Standards such as IEC 60068-2-6 and IEC 60068-2-27 verify performance under prolonged vibration and shock conditions. IEC 60529 and Bureau Veritas certification reinforce long-term sealing integrity. The metal head and bezel maintain mechanical function without degradation from UV or chemical contact.