Schneider Electric's DT40N series circuit breaker is engineered for reliable circuit protection in demanding industrial environments. This 3-pole plus neutral configuration breaker, designated by the part number A9N21404, features a 6A current rating and a C curve tripping characteristic, making it suitable for applications requiring protection against overloads and short circuits with a moderate inrush current capability. The DT40N series is a component within Schneider Electric's comprehensive range of low-voltage electrical distribution equipment.

Technical details

• Series: DT40N
• Configuration: 3 Poles + Neutral (3P+N)
• Current Rating: 6 Amperes (6A)
• Tripping Curve: C Curve
• Breaking Capacity: Please verify breaking capacity and voltage ratings against the manufacturer's datasheet for your specific application requirements.
• Terminal Type: Please verify terminal type and wire accommodation against the manufacturer's datasheet.
• Mounting Type: DIN rail mountable (standard for this series).
• Insulation Voltage: Please verify insulation voltage rating against the manufacturer's datasheet.

Applications & compatibility

The Schneider Electric DT40N circuit breaker is commonly deployed in control panels, distribution boards, and machinery for protecting electrical circuits in sectors such as manufacturing, building automation, and material handling. Its C curve characteristic makes it well-suited for circuits with inductive loads, including motors, transformers, and lighting ballasts, where temporary current surges are expected.

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 A9N21404 or contact our technical team for cross-reference assistance with compatible Schneider Electric DT40N components.