Featuring black handles and a range of positions, Schneider Electric offers the Harmony ZB4 series of key switch heads. Round and chrome 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
• IK06 conforming to IEC 50102

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

Need an easy and speedy way to control your industrial equipment? Take a turn with this button switch from Schneider Electric. It has two positions, so you simply turn it through 90° to switch between process or machine-operating modes. The unit can only be actuated with a key, so you can be confident that access is limited to authorised staff. An IP66 rating means it's dust-tight and shielded from high-pressure jets of water from any direction, so it's a reliable choice in industrial settings.

• Chromium-plated metal bezel resists impact, vibration and corrosion in heavy-duty applications
• Lightweight at 98g, so it adds minimal pressure to your setup
• Slots into a 22mm cutout for easy compatibility with standard panels

• Computer networks
• Control panels
• Lighting systems
• Security equipment
• Energy distribution

It has a high mechanical durability rating of 1 million cycles, so you can trust it to go the distance.

Yes – its wide operating temperature range from -40°C to +70°C means it's suitable for use in factories and other harsh work areas.