The Schneider Electric DT40 circuit breaker is a 3-pole device designed for reliable overcurrent protection in industrial electrical systems. This specific model, identified by the part number A9N21049, is part of the DT40 series, commonly utilized in control panels and distribution boards for safeguarding machinery and circuits. Its robust construction ensures dependable operation in demanding environments.

Technical details

• Series: DT40
• Poles: 3
• Current Rating: 40A
• Trip Curve: C curve (designed for inductive loads with moderate inrush currents)
• Voltage Class: Verify with manufacturer datasheet for specific voltage ratings (e.g., 240VAC, 480VAC, 600VAC).
• Interrupting Capacity: Verify with manufacturer datasheet for specific interrupting capacity (kA).
• Mounting Type: Typically DIN rail mount (verify with manufacturer datasheet).
• Terminal Type: Verify with manufacturer datasheet for specific terminal type (e.g., screw terminals, box lugs).

Applications & compatibility

This Schneider Electric DT40 circuit breaker is suitable for a wide range of industrial applications, including motor control circuits, lighting distribution, and general power distribution in manufacturing facilities. It is commonly found in control panels for packaging machinery, conveyor systems, HVAC equipment, and machine tools where precise overcurrent protection is essential.

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 A9N21049 or contact our technical team for cross-reference assistance with compatible DT40 series components.