Schneider Electric's DT40N circuit breaker, identified by the part number A9N21396, is a 3-pole device designed for robust electrical protection. This breaker is part of the DT40 series, commonly integrated into control panels and power distribution systems within manufacturing environments. Its D curve tripping characteristic makes it suitable for applications requiring higher inrush current handling capabilities, such as motor circuits.

Technical details

• Series: DT40N
• Number of Poles: 3
• Current Rating: 16A
• Trip Curve: D Curve
• Voltage Rating: Please verify specific voltage rating against the manufacturer's datasheet.
• Interrupting Capacity: Please verify specific interrupting capacity against the manufacturer's datasheet.
• Terminal Type: Please verify specific terminal type against the manufacturer's datasheet.
• Mounting Type: Please verify specific mounting type against the manufacturer's datasheet.

Applications & compatibility

The DT40N circuit breaker is frequently specified for use in industrial automation systems, particularly in applications involving motor control and power distribution for machinery. Its D curve rating makes it an effective choice for protecting equipment such as pumps, fans, and conveyor systems where temporary overcurrents are expected during startup. Compatibility extends to various control panel configurations and power distribution boards requiring reliable circuit 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 A9N21396 or contact our technical team for cross-reference assistance with compatible DT40N components.