The Schneider Electric Square D 8539SJA53V03 is a combination motor starter designed for reliable AC squirrel cage motor control. This unit integrates motor overload and short-circuit protection into a single enclosure, providing comprehensive safety for industrial machinery. It is commonly utilized in applications requiring robust and protected motor starting capabilities.

Technical details

• Series: Square D 8539 Combination Motor Starter
• Motor Starter Type: Combination Starter (includes disconnect and overload relay)
• Enclosure Type: NEMA 1 (Indoor, general purpose)
• Control Voltage: 120V AC (coil voltage)
• Overload Relay Amperage Range: 1.6 - 7.0 Amps (adjustable)
• Horsepower Rating: 3 HP at 230V, 5 HP at 460/575V (3-phase)
• Contact Configuration: 3 Normally Open (NO) main contacts
• Disconnect Type: Fusible (requires separate fuses, not included)

Applications & compatibility

This motor starter is suitable for a wide range of industrial applications including conveyor systems, pumps, fans, and machine tools. It provides essential protection for motors in manufacturing environments, packaging lines, and material handling equipment. The NEMA 1 enclosure makes it appropriate for clean, dry indoor installations.

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 8539SJA53V03 or contact our technical team for cross-reference assistance with compatible Square D components.