SIEMENS HED43B125AEAESN Breaker 3P 480V 125A - Molded Case Circuit Breaker

The SIEMENS HED43B125AEAESN is a 3-pole molded case circuit breaker designed for standard 40°C applications. Rated for 480V AC and 125A continuous current, it provides reliable overcurrent protection in electrical distribution systems. This breaker is suitable for use by electrical distributors, lighting solutions providers, wire and cable suppliers, and switchgear suppliers requiring robust and compliant circuit protection.

Specifications

• Manufacturer: Siemens
• Catalog Number: HED43B125AEAESN
• Frame Type: ED
• Number of Poles: 3
• Voltage Rating: 480V AC
• Current Rating: 125A Continuous @ 40¬∞C
• Interrupting Rating: 42KAIC
• Frequency Rating: 50/60 Hz
• Dimensions (W x H x L): 5.00 in x 7 in x 5.00 in
• Product Weight: 3.6 lbs
• Operating Temperature: 40¬∞C
• Actuator Accessory: S01ED62AA
• Enclosure: Varying
• UPC: 783643524408

Features

• Standard 40¬∞C rated molded case circuit breaker for reliable protection
• Non-interchangeable trip unit design consistent with Siemens ED frame breakers
• Compliant with CSA C22.2 No. 5 and UL 489 standards for molded case circuit breakers
• Suitable for individual enclosures, panelboards, switchboards, and approved equipment
• Manual operation with ON, OFF, and TRIP positions plus a push-to-trip test button
• Designed for mounting with included accessories and torque specifications for secure installation
• Compatible with copper and aluminum wiring connectors, with recommended joint compound for aluminum
• Field inspection and maintenance supported with clear procedures to ensure long-term reliability

Downloads & Links

• Spec Sheet
• Spec Sheet