Westinghouse HFA3040 Mark 75 AB DE-ION 40A 40C Style 504C748G22 600 VAC

Description:

The Westinghouse HFA3040 Mark 75 AB DE-ION 40A 40C Style 504C748G22 600 VAC is a molded case circuit breaker designed for industrial electrical distribution and branch circuit protection applications. Commonly installed in switchboards, motor control centers, industrial automation systems, and manufacturing equipment requiring dependable medium-amperage three-phase overcurrent protection. The Mark 75 AB DE-ION series is designed for heavy-duty industrial power distribution and motor control environments. Maintenance teams, OEMs, and electrical integrators use this breaker for replacement, retrofit upgrades, and maintenance of industrial electrical infrastructure.

Applications:

The Westinghouse HFA3040 circuit breaker is commonly used in industrial and commercial electrical systems where reliable branch circuit protection is required for medium-amperage three-phase equipment and connected power systems. It is suitable for motor control systems, HVAC infrastructure, conveyor equipment, industrial processing machinery, automation systems, MCCs, and electrical distribution panels operating on up to 600 VAC power networks.

Technical Specifications:

• Brand: Westinghouse
• Part Number: HFA3040
• Style Number: 504C748G22
• Product Type: Molded Case Circuit Breaker
• Current Rating: 40 Amp
• Voltage Rating: 600 VAC
• Number of Poles: 3 Pole
• Phase Compatibility: 3 Phase
• Breaker Series: HFA
• Product Family: Mark 75 AB DE-ION
• Temperature Calibration: 40°C
• Protection Type: Thermal Magnetic
• Application: Branch circuit and equipment protection
• Function: Overcurrent and short-circuit protection
• Mounting Style: Panel or switchboard mounted
• Industrial Use: Power distribution and motor control systems
• Frequency Rating: 50/60 Hz
• Typical Installation: MCCs, switchgear, industrial control panels

Common Replacements:

• Eaton HFA3040
• Siemens HFD3040
• Square D LA3640