The Schneider Electric Square D 8539SBA53V03 is a non-reversing combination motor starter designed for reliable motor control in industrial environments. This unit integrates a circuit breaker and a magnetic motor starter into a single assembly, simplifying installation and reducing panel space. It is engineered to protect and control motors across a range of sizes, from fractional horsepower up to 5 HP.

Technical details

• Series: Square D 8539S
• Type: Combination Motor Starter, Non-Reversing
• Enclosure Type: NEMA 1 (based on common configurations for this series and part number structure, buyer should verify specific enclosure rating)
• Main Circuit Voltage Rating: 600VAC
• Main Circuit Amperage Rating: 18A
• Motor Horsepower Rating (460VAC): Up to 5 HP
• Control Circuit Voltage: 220VAC (50 Hz) / 240VAC (60 Hz)
• Integrated Protection: Thermal-Magnetic Circuit Breaker

Applications & compatibility

This combination starter is suitable for applications requiring direct-on-line motor starting and protection, such as on conveyor systems, pump drives, fan controls, and general machinery. It is commonly found in manufacturing plants, processing facilities, and building automation systems where robust and dependable motor control is essential.

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 8539SBA53V03 or contact our technical team for cross-reference assistance with compatible Square D components.