SIEMENS ED43B125AESB Molded Case Circuit Breaker

The SIEMENS ED43B125AESB is a 3-pole molded case circuit breaker designed for standard 40°C applications, suitable for use in electrical distribution and switchgear assemblies. Rated for 125A continuous current at 480V AC, it provides reliable circuit protection with an interrupt rating of 18KAIC and supports operation at 50/60 Hz frequency. This breaker is compatible with various enclosures and includes an S07ED62A actuator accessory for enhanced control functionality.

Specifications

• Manufacturer: Siemens
• Model Number: ED43B125AESB
• Frame Type: ED
• Number of Poles: 3
• Voltage Rating: 480V AC
• Current Rating: 125A
• Frequency Rating: 50/60 Hz
• Interrupt Rating: 18KAIC
• Operating Temperature: 40¬∞C
• Dimensions (W x H x L): 7.0 in x 6 in x 4.0 in
• Product Weight: 5.26 lbs
• Auxiliary Actuator: S07ED62A Accessory
• UPC: 783643376830

Features

• Standard 40¬∞C rated breaker suitable for use in electrical distribution and lighting solutions.
• Non-interchangeable trip unit integrated within ED frame design for enhanced safety and compliance with UL 489 and CSA standards.
• Supports reverse feed applications when installed according to Siemens specifications.
• Load side lugs included; line side lugs available as accessory for flexible wiring configurations.
• Compatible with 60¬∞C or 75¬∞C wire as per National Electric Code requirements.
• Designed for use in panelboards, switchboards, and other approved electrical enclosures.
• Includes PUSH-TO-TRIP button for manual trip testing and verification of breaker operation.
• Suitable for use with copper and aluminum wiring with appropriate connectors.

Downloads & Links

• Spec Sheet
• Spec Sheet