The Schneider Electric Square D 8539SJA12V03 is a combination motor starter designed for reliable motor control and protection in industrial environments. This unit integrates overload and short-circuit protection within a single NEMA-rated enclosure, ensuring comprehensive safeguarding for electric motors. It is a component commonly found in control panels for various manufacturing and processing machinery.

Technical details

• Series: Square D 8539 Combination Motor Starter
• Protection Type: Integrated Motor Overload and Short Circuit Protection
• Enclosure Rating: NEMA Standard
• Certifications: UL Listed
• Functionality: Provides a complete motor control solution by combining a disconnect, starter, and overload relay.
• Voltage Compatibility: The '12' in the part number typically indicates a 120VAC control circuit voltage. Verify specific power circuit voltage requirements with the manufacturer's datasheet.
• Frame Size: The 'SJA' designation often relates to the starter's frame size and current rating. For the 8539SJA12V03, this generally corresponds to a Size 1 starter, suitable for motors up to 7.5 HP at 460/575VAC. Confirm exact HP and current ratings against the datasheet.

Applications & compatibility

This Schneider Electric motor starter is suitable for applications requiring robust motor control and protection, such as in packaging machinery, material handling systems, pump controls, and general industrial machinery. Its NEMA rating and UL listing make it compliant with stringent industrial safety standards.

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 8539SJA12V03 or contact our technical team for cross-reference assistance with compatible Square D components.