The Schneider Electric Square D 8539SDW42V03 is a combination motor starter designed for robust motor control and protection in industrial environments. This unit integrates a motor starter and a circuit breaker or fuse holder into a single enclosure, simplifying installation and reducing panel space. It is engineered for 600VAC systems, providing a reliable solution for applications requiring comprehensive motor management.

Technical details

• Series: Square D 8539 Combination Starter
• Voltage Rating: 600VAC
• Horsepower Rating: Supports motors from 5 to 20 horsepower, dependent on specific voltage configuration (verify with manufacturer datasheet for exact ratings at 200V, 230V, 460V, or 575V).
• Enclosure Type: NEMA 1 (Indoor General Purpose)
• Control Voltage: 120VAC (coil voltage)
• Overload Relay Type: Adjustable thermal overload
• Interrupting Capacity: Consult manufacturer datasheet for specific AIC rating.
• Phase: 3-Phase

Applications & compatibility

This combination starter is suitable for direct-on-line (DOL) starting of three-phase induction motors across various industrial sectors. It is commonly deployed in machine tools, material handling systems, pumps, fans, and other applications where reliable motor control and short-circuit protection are critical. Its integrated design makes it ideal for panel builders and maintenance professionals seeking efficient motor control solutions.

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 8539SDW42V03 or contact our technical team for cross-reference assistance with compatible Square D components.