The Schneider Electric Square D 8539SBW42S8V03 is a Type 2, non-reversing, NEMA Size 1 combination motor starter designed for reliable motor control in demanding industrial environments. This unit integrates a circuit breaker and a magnetic motor starter, providing both circuit protection and motor starting capabilities within a single enclosure.

Technical details

• Series: Square D 8539
• NEMA Size: 1
• Enclosure Type: Open (Component)
• Voltage Rating: 600VAC maximum
• Amperage Rating: 18A (for the magnetic starter component)
• Control Circuit Voltage: 120VAC (coil voltage)
• Number of Poles: 3
• Protection Type: Type 2 (IEC 60947-4-1 compliant)

Applications & compatibility

This combination starter is suitable for direct-on-line (DOL) starting of three-phase induction motors. It is commonly employed in applications such as conveyor systems, pump controls, fan drives, and general machinery where integrated motor protection and control are required.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider Electric Square D 8539SBW42S8V03 or contact our technical team for cross-reference assistance with compatible Square D components.