The Schneider Electric Square D Q4L2400MB is a molded case circuit breaker designed for robust overcurrent protection in demanding electrical systems. As part of the Q4L series, this 2-pole breaker offers a substantial 400A current rating, making it suitable for applications requiring significant power distribution and fault interruption capabilities. Its construction ensures reliable performance in environments ranging from commercial facilities to heavy industrial settings.

Technical details

• Series: Square D Q4L
• Poles: 2
• Current Rating: 400 Amperes
• Voltage Rating: 240 VAC Maximum
• Frequency Rating: 50/60 Hz
• Trip Type: Thermal Magnetic
• Interrupting Rating: To be verified against manufacturer datasheet for specific application requirements.
• Connection Type: Lug terminals (verify specific terminal size and type against manufacturer documentation).

Applications & compatibility

This circuit breaker is commonly employed in main service panels, distribution switchboards, and as a branch circuit protection device in industrial facilities. It is well-suited for protecting large motor loads, transformers, and other equipment that draw significant current. Compatibility should be confirmed with specific panelboard and switchgear models within the Square D ecosystem.

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 Q4L2400MB or contact our technical team for cross-reference assistance with compatible Square D Q4L series components.