The Schneider Electric Square D 8539-SCW7-V81A-F4TX12 is a combination motor starter designed for robust control and protection in demanding industrial environments. This unit integrates motor overload and short-circuit protection within a single, compact enclosure, streamlining installation and maintenance for motor control circuits.

Technical details

• Series: Square D 8539 Combination Starter
• Voltage Rating: Verify against manufacturer datasheet for specific voltage class (e.g., 240V, 480V, 600V). The part number does not explicitly define this.
• Enclosure Type: The 'F4TX12' suffix suggests a specific NEMA enclosure rating; consult the datasheet for precise details.
• Control Circuit Voltage: The 'V81A' designation may indicate control circuit voltage or features; refer to the manufacturer's documentation for confirmation.
• Overload Relay Type: The 'SCW7' component of the part number typically denotes the overload relay type and its thermal setting range.
• Short-Circuit Current Rating (SCCR): Consult the manufacturer's datasheet for the confirmed SCCR of this specific model.
• Motor Full Load Amps (FLA) Range: The overload relay component (SCW7) will define the adjustable FLA range for motor protection.
• Contact Configuration: Standard NEMA configuration for a combination starter, typically including main power contacts and auxiliary contacts.

Applications & compatibility

This Schneider Electric Square D combination starter is suitable for direct-on-line (DOL) starting of three-phase induction motors in applications such as pump control, fan systems, conveyor belts, and general machinery. It is designed to integrate seamlessly into existing Square D control panel designs and is compatible with a wide range of industrial automation systems requiring reliable motor control and protection.

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 8539-SCW7-V81A-F4TX12 or contact our technical team for cross-reference assistance with compatible Square D components.