The Schneider Electric Square D 8539SBA43V03 is a combination magnetic starter designed for reliable AC squirrel cage motor control. This starter is part of the 8539 series and is engineered for indoor, general-purpose applications within building automation systems, commercial office buildings, and infrastructure projects.

Technical details

• Series: Square D 8539
• Type: Combination Magnetic Starter
• Amperage Rating: 18 A
• Coil Voltage: 110 VAC at 50 Hz / 120 VAC at 60 Hz
• Motor Horsepower Rating (at 460/575V): 10 HP
• Enclosure Type: NEMA 1 (General Purpose Indoor)
• Control Circuit: Standard
• Contact Configuration: 2 Normally Open (NO) / 2 Normally Closed (NC) auxiliary contacts
• Mounting: Surface mount

Applications & compatibility

This combination starter is suitable for direct-on-line starting and stopping of AC squirrel cage motors in applications such as HVAC systems, pump controls, fan units, and conveyor systems. It is commonly integrated into building management systems and general industrial control panels.

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 8539SBA43V03 or contact our technical team for cross-reference assistance with compatible 8539 series components.