The Schneider Electric Square D 8538SDA44V81AFF4T is a combination motor starter designed for reliable motor control and protection in demanding industrial environments. This unit integrates a motor starter and overload relay into a single assembly, offering a compact and efficient solution for applications requiring robust circuit protection. It is commonly specified for use in heavy-duty machinery and control panels within the construction, infrastructure, and general industrial sectors.

Technical details

• Series: Square D 8538 Combo Starter
• Voltage Rating: 600 VAC
• Enclosure Type: NEMA Type 1 (indicated by the 'AFF4T' suffix, common for indoor, general-purpose use)
• Control Circuit Voltage: 120 VAC (indicated by the 'V81' suffix, a common control voltage for this series)
• Overload Relay Type: Thermal, adjustable (implied by the standard configuration of this series)
• Motor Full Load Amps (FLA) Range: The '44' in the part number typically denotes a specific FLA range. For this model, it generally corresponds to an adjustable range up to 40 FLA. Buyers should verify the exact range against the manufacturer's datasheet.
• Starter Size: Size 1 (indicated by the 'SDA' prefix, common for this starter size)
• Phase: 3-Phase (standard for this type of industrial motor starter)

Applications & compatibility

This Schneider Electric Square D combo starter is engineered for direct-on-line (DOL) starting of three-phase induction motors. It is suitable for applications such as pump controls, fan systems, conveyor belts, and general machinery where precise motor protection against overloads and short circuits is critical. Its NEMA Type 1 enclosure makes it appropriate for clean, dry indoor environments.

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 8538SDA44V81AFF4T or contact our technical team for cross-reference assistance with compatible Square D components.