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

This key switch head from Schneider Electric is a reliable and durable product designed for various industrial applications. With features such as IP66 rating, centre key withdrawal, and long mechanical life, this key switch head ensures high performance and longevity. The 455 key type and unique features make it a reliable choice for automation needs.

• IP66 rating for protection against dust and water ingress
• Centre key withdrawal position for added security
• Long mechanical life of 1,000,000 cycles for lasting performance
• 455 key type for precise operation

• Suitable for industrial automation systems
• Ideal for use in electronic control panels
• Can be used for securing access to machinery
• Commonly used in control room operations

Yes, this key switch head can operate at a maximum temperature of +70 °C.

Yes, the mounting diameter is 22mm, making it suitable for standard cutouts.

Yes, with an IP66 rating, this key switch head is designed to withstand outdoor conditions.

Yes, the robust design and resistance to high-pressure washing make it ideal for harsh environments.