Featuring illuminated handles and a range of positions, Schneider Electric offers the Harmony ZB4 series of key switch heads. Round and chromium plated metal, they are designed to be durable, simple to set up, flexible and robust. Each switch head contains an ingenious locking system which is a snap-fit head and body, the heads can be tightened with a single screw to ensure secure and simple mounting. We have a large range of Harmony ZB4 key switch heads available in our catalogue with different positions and operator type to suit your needs.

All heads require a body/fixing collar and contact bodies which are available from our catalogue of products:

Collar 331-0142
Contact bodies 331-0158

• Low-load electrical contact
• Screw clamp connection, pins for printed circuit
• Ingenious locking system
• Flexible and robust
• -40°C to 70°C operating temperature

• Conformity with IEC, UL, CSA standards
• IP67, IP66 conforming to IEC 60529, IP69 and IP69K
• NEMA 13 and NEMA 4X

Applications - Designed for industry, infrastructure and service sector use including:
• Automotive
• Control system panel builders
• Energy distribution
• Public works
• Building
• Airports

Change machine settings in an instant with this selector switch head from Schneider Electric. Its two-way operating style makes it straightforward to cycle between on and off functions. Once selected, your chosen function remains active until you change it, so this unit's ideal for running tasks that don't need constant supervision. A chromium-plated metal bezel shrugs off abrasion in challenging settings and is easy to wipe clean. For immediate visibility, the switch head is illuminated in green so it stands out in any setting.

• Compact dimensions of 29 (H) x 29 (W) x 43mm (D) mean it's space-efficient
• Mechanical durability of one million operating cycles so it's reliable over long periods
• Operates reliably in temperatures between -40°C and +70°C
• TH protective treatment provides resistance to impacts and corrosion, so it's long-lasting

• Machine control panels
• Automotive manufacturing
• Energy distribution services

Yes, it's rated IP69K, which means it's completely dust-tight and withstands high-temperature, high-pressure wash-downs for regular sterilisation and cleaning procedures.