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

Ready to ramp up security in your workplace? Add this push button switch from Schneider Electric to your setup. It activates with a key to prevent unauthorised actuation at the source. Use it as a secure method to lock away specific actions or your whole control panel. The chromium metal-plated body and TH-protective treatment ward off rust and corrosion to minimise sticking. Thanks to its mechanical lifespan of one million operations, you can continue relying on this unit for years to come.

• Performs reliably in -40°C to +70°C temperatures to suit extreme environments
• IP69K-rated, indicating it's fully protected against dust and harsh water sprays
• Resists 5gn of vibration, meaning it can withstand even the most demanding equipment conditions

• Security systems
• Energy industry
• Lifts and escalators

This product features a Ronis 455 keylock, which is the industry standard for industrial environments. Its round, metal body stands up to heavy use, making it ideal for harsh settings like warehouses or factories.