The Schneider Electric Square D EH43040 is a molded case thermal magnetic circuit breaker engineered for robust protection in 3-phase electrical distribution systems. This 40-ampere, 3-pole breaker is designed for applications requiring a 480/277VAC voltage rating and operates reliably at both 50 and 60 Hz frequencies, ensuring consistent performance across various power grids.

Technical Details

• Series: EH Frame
• Type: Molded Case Thermal Magnetic Circuit Breaker
• Poles: 3
• Amperage Rating: 40 A
• Voltage Rating: 480/277 VAC
• Frequency: 50/60 Hz
• Trip Unit Type: Thermal Magnetic
• Interrupting Rating: Consult manufacturer datasheet for specific interrupting capacity (AIC) values.

Applications & Compatibility

This circuit breaker is suitable for use in a wide range of industrial and commercial power distribution panels, motor control centers, and equipment requiring reliable overcurrent protection. It is commonly found in applications such as manufacturing facilities, data centers, and building services where consistent and dependable electrical safety is paramount.

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 EH43040 or contact our technical team for cross-reference assistance with compatible Square D components.