SIEMENS HED43M040 BRKR HED4 3P 480V 40A 50C Molded Case Circuit Breaker

The SIEMENS HED43M040 is a 3-pole molded case circuit breaker designed for use in electrical distribution systems requiring reliable overcurrent protection. Calibrated for 50°C applications, it supports voltages up to 480V AC at 50/60 Hz frequency. This breaker is suitable for use by electrical distributors and switchgear suppliers in industrial and commercial lighting and power systems, providing secure load interruption with a high interrupt rating of 42 kAIC. Its ED frame construction supports compact installation within panelboards, switchboards, and other approved equipment.

Specifications

• Manufacturer: Siemens
• Manufacturer Part #: HED43M040
• Frame: ED
• Number of Poles: 3
• Voltage Rating: 480V AC
• Current Rating: 40A
• Frequency Rating: 50/60 Hz
• Interrupt Rating: 42 kAIC
• Operating Temperature: 50¬∞C
• Application: Calibrated for 50¬∞C Application
• Dimensions (W x H x L): 7.0 in x 6 in x 4.0 in
• Product Weight: 3.5 lbs
• Actuator Type: Varying
• Enclosure Type: Varying
• UPC: 783643007154

Features

• Compact ED frame design suitable for panelboard and switchboard installations
• Thermal-magnetic trip unit calibrated for 50¬∞C ambient temperature for enhanced performance in elevated temperature environments
• Non-interchangeable trip unit design for secure, factory-assembled configuration
• Manual operation with ON, OFF, and TRIP positions plus push-to-trip button for testing trip function (per installation instructions)
• Compatible with 60 or 75¬∞C wire per National Electric Code guidelines
• Installation supported with torque specifications and mounting hardware per Siemens guidelines
• Meets applicable UL 489 and CSA C22.2 No. 5 standards for molded case circuit breakers

Downloads & Links

• Spec Sheet
• Spec Sheet