Part of the Schneider Electric Acti 9 series, the A9F03440 is a 4-pole miniature circuit breaker (MCB) engineered for robust electrical distribution in commercial and industrial settings. This device incorporates a B curve tripping characteristic, providing rapid response to overcurrents and short circuits, particularly beneficial for loads with low starting currents such as lighting and resistive heating elements. Its design ensures reliable protection against electrical faults, safeguarding equipment and personnel.

Technical details

• Series: Acti 9
• Poles: 4
• Tripping Curve: B Curve
• Nominal Current Rating: 40A
• Maximum AC Voltage Rating: 400V AC
• Interrupting Capacity: To be verified against manufacturer datasheet.
• Terminal Type: To be verified against manufacturer datasheet.
• Mounting Type: DIN rail mount (standard for MCBs, to be verified).

Applications & compatibility

The Schneider A9F03440 is commonly deployed in electrical panels for building services, control cabinets for machinery, and distribution boards within light industrial environments. Its B curve makes it suitable for applications where inductive loads are minimal, such as general lighting circuits, control circuits, and resistive heating systems, ensuring efficient and safe power management.

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 A9F03440 or contact our technical team for cross-reference assistance with compatible Acti 9 components.