SIEMENS ED43B125BP BRKR ED4 3P 480V 125A Circuit Breaker

The Siemens ED43B125BP is a 3-pole molded case circuit breaker designed for standard 40°C applications. Rated for 125 amps and 480 volts AC, it provides reliable overcurrent protection in electrical distribution systems. This breaker is suitable for use by electrical distributors and switchgear suppliers requiring robust, compact, and UL/CSA certified circuit protection devices. It features a thermal-magnetic trip unit and supports 50/60 Hz frequency operation, making it applicable in various industrial and commercial electrical installations.

Specifications

• Manufacturer: Siemens
• Frame: ED
• Number of Poles: 3
• Voltage Rating: 480V AC
• Current Rating: 125A
• Interrupt Rating: 18 KAIC
• Frequency Rating: 50/60 Hz
• Operating Temperature: 40¬∞C
• Dimensions (HxWxL): 6.4 in x 3.0 in x 4.0 in
• Product Weight: 3.45 lbs
• Actuator: Varying
• Enclosure: Varying
• UPC: 783643003538

Features

• Standard 40¬∞C thermal-magnetic breaker suitable for industrial power distribution
• Non-interchangeable trip unit integrated within the ED frame for enhanced safety and compliance with UL 489 and CSA C22.2 No. 5
• Load side lugs included; line side lugs available as accessories
• Compact design optimized for panelboards, switchboards, and individual enclosures
• Compatible with 60¬∞C or 75¬∞C wire per National Electric Code guidelines
• Manual operation with ON, OFF, and TRIPPED handle positions and push-to-trip button for testing
• Suitable for reverse feed applications due to non-removable trip unit construction

Downloads & Links

• Spec Sheet
• Spec Sheet