Durable motor control for decentralized automation

Phoenix Contact has expanded its industrial automation product portfolio with the release of Contactron hybrid motor starters featuring IP67 (UL Type 4) and IP54 (UL Type 12) protection ratings and integrated IO-Link connectivity. Developed to support decentralized automation architectures, the devices shift motor control electronics out of central control cabinets and position them directly on machines or conveyor lines. The ruggedized enclosures are designed for demanding factory automation, mechanical engineering, and intralogistics applications requiring field-level installation with reduced wiring requirements.

Hybrid Switching Architecture and Mechanical Durability
The motor starters combine solid-state semiconductor electronics with electromechanical relay switching, extending service life beyond conventional electromechanical contactors. The electronic control sequence limits internal heat generation, allowing a compact housing footprint.

Operating configurations support direct-on-line (DOL) and reversing starter modes. The hardware incorporates integrated functional safety capabilities alongside parameter configuration and diagnostic reporting over IO-Link.

Decentralized Communication and Process Diagnostics
Integration with IO-Link provides bidirectional parameterization and status monitoring directly from field devices to higher-level automation networks. Moving motor starters closer to drives in material handling and conveyor installations streamlines installation cabling and improves continuous process visibility.

Additional Context
This section details technical specifications not included in the original news release.

Hybrid motor starters coordinate microprocessor-controlled semiconductors with mechanical bypass relays. During startup and shutdown intervals, solid-state electronics switch current at the sinusoidal zero-crossing point to eliminate electrical arcing and contact wear. Once nominal running speed is reached, low-resistance mechanical contacts engage to bypass the semiconductors, preventing continuous thermal dissipation in the field enclosure. Field wiring for IP67 units uses standard M12 circular power and signal connectors. Over IO-Link, the device cyclically reports operational metrics such as phase currents, thermal load models, and switching cycle totals, while safety-integrated variants achieve Safe Torque Off (STO) ratings up to SIL 3 and PL e without auxiliary contactors.

Edited by Romila DSilva, Induportals Editor, with AI assistance.