Industrial ZALVB3 Switch Contact Block Assembly

The Industrial ZALVB3 switch contact block assembly from Schneider Electric Telemecanique (Harmony XAL family) provides visible green LED status indication and steady control signaling for 22 mm control and signaling units. This rear-mounted light block uses screw clamp terminals with a terminal capacity of up to 2 × 1.5 mm² and operates from 24 V AC/DC, featuring an integrated green LED and IP20 protection. It withstands -40 °C to +70 °C and offers a service life of 100,000 hours, making it suitable for long-running industrial environments. Commonly installed in packaging machines, conveyor systems, motor control panels, and automated production equipment, it supports monitoring and operator control when used with push-button stations, selector switches, operator panels, or machine tools that require illuminated control devices. Compatible with standard 22 mm control and signaling units, this contact block assembly serves repair, retrofit, expansion, or replacement needs, with common replacements including ZALVB1, ZALVB2, and ZALVB4.