The Schneider Electric Square D 8539SHG4V03 is a combination magnetic starter designed for robust motor control and protection in demanding industrial environments. This unit integrates a magnetic contactor with overload and short-circuit protection, offering a consolidated solution for safeguarding motors and ensuring operational continuity. It is commonly deployed in applications requiring reliable starting and stopping of three-phase motors.

Technical details

• Series: Square D 8539
• Type: Combination Magnetic Starter
• Enclosure Type: Open (as indicated by the 'SH' in the part number, typically denoting an open style starter without a NEMA enclosure unless specified otherwise)
• Motor Overload Protection: Melting alloy overload relays are standard, providing thermal overload protection.
• Short Circuit Protection: Integrated short-circuit protection is a key feature of combination starters.
• Control Voltage: The '4' in the part number often indicates a 110-120V control voltage coil. Verify with manufacturer datasheet for exact specification.
• Horsepower Rating: The 'V03' suffix typically denotes a specific horsepower rating. For this model, it commonly corresponds to a 3 HP rating at 230V or 5 HP at 460V. Verify with manufacturer datasheet for exact specification.
• Phase: Designed for three-phase motor applications.

Applications & compatibility

This combination starter is suitable for a wide range of industrial applications including pump controls, fan systems, conveyor belts, and machine tool applications where reliable motor starting and protection are critical. It is designed to integrate seamlessly into existing control panels and motor control centers.

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 8539SHG4V03 or contact our technical team for cross-reference assistance with compatible Square D components.