The Schneider Electric KNA40ED4303 is a circuit breaker designed for industrial power distribution and protection. As part of the Schneider Electric Masterpact series, this breaker is engineered to safeguard electrical systems against overcurrents and short circuits in demanding environments. Its robust construction and reliable performance make it suitable for integration into various industrial control panels and power distribution units.

Technical details

• Series: Masterpact
• Type: Circuit Breaker
• Current Rating: 40 A
• Configuration: Straight Length
• Voltage Class: Typically rated for industrial voltages; consult manufacturer datasheet for specific voltage ratings (e.g., 240V, 480V, 600V AC).
• Interrupting Capacity: Specific interrupting capacity (kA) is encoded in the full part number or requires datasheet verification.
• Poles: The 'ED' in the part number often indicates a 3-pole configuration, but this should be confirmed with the datasheet.
• Mounting Type: Panel mount, designed for integration into switchgear and control cabinets.

Applications & compatibility

This Schneider Electric circuit breaker is commonly employed in power distribution systems for manufacturing facilities, process plants, and commercial buildings. It is essential for protecting downstream equipment such as motors, transformers, and lighting circuits from electrical faults. Its compatibility extends to various industrial switchgear assemblies and control panels requiring reliable overcurrent 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 KNA40ED4303 or contact our technical team for cross-reference assistance with compatible Masterpact components.