The Schneider Electric Acti9 A9F74440 is a 4-pole miniature circuit breaker designed for robust electrical protection in industrial environments. This thermal-magnetic breaker is part of the Acti9 series, known for its reliability and performance in demanding applications. It provides essential overcurrent protection for circuits operating at up to 400 VAC.

Technical details

• Series: Acti9
• Poles: 4
• Current Rating: 40 Amp
• Voltage Rating: 400 VAC
• Frequency: 50/60 Hz
• Trip Curve: C-Curve (designed for inductive loads with moderate inrush currents)
• Protection Type: Thermal-Magnetic
• Features: Trip indicator
• Operating Temperature Range: -40 to +85 degrees C

Applications & compatibility

This circuit breaker is suitable for use in a wide range of industrial control panels, power distribution systems, and machinery. It is commonly found in applications such as motor control circuits, lighting systems, and general power distribution where reliable protection against short circuits and overloads is critical. Its C-curve characteristic makes it ideal for equipment with moderate starting currents.

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 A9F74440 or contact our technical team for cross-reference assistance with compatible Acti9 components.