Designed for residential service entrance applications, the Schneider Electric Square D SU3040D400CB is a comprehensive combination service entrance device. This unit is part of the Square D brand's robust offering for electrical distribution and provides a reliable solution for managing incoming power. It features a manual bypass system for safe maintenance and service operations.

Technical Details

• Series: Square D SU Series
• Configuration: 30-circuit, 40-space
• Amperage Rating: 400 Amps
• Voltage Rating: 120/240 Volts AC
• Service Type: Underground
• Bypass Type: Ring-style, manual bypass
• Test Block: Class 320
• Enclosure Type: Suitable for outdoor or indoor installation (verify specific NEMA rating against manufacturer datasheet)

Applications & Compatibility

This service entrance device is specifically engineered for residential electrical systems requiring a high-amperage main disconnect and distribution panel. It is commonly installed at the point where utility power enters a dwelling, providing overcurrent protection and branch circuit distribution for the entire home. Its 400A rating makes it suitable for larger homes or those with significant electrical loads.

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 Schneider Electric Square D SU3040D400CB or contact our technical team for cross-reference assistance with compatible Square D distribution components.