BRKR HED4 3P 480V 125A – Molded Case Circuit Breaker

The Siemens BRKR HED4 3P 480V 125A is a low voltage molded case circuit breaker designed for reliable protection in electrical distribution systems. It features a thermal-magnetic trip unit and a standard 40°C frame, making it suitable for industrial and commercial applications requiring high breaking capacity and robust circuit protection. This breaker is commonly used by electrical distributors, lighting solutions providers, wire and cable installers, and switchgear suppliers to ensure safe and efficient power distribution.

Specifications

• Manufacturer: Siemens
• Model Number: HED43B125
• Frame Type: ED
• Poles: 3
• Voltage Rating: 480V AC
• Current Rating: 125A continuous @ 40°C
• Interrupting Rating: 42 kAIC at 480V
• Frequency Rating: 50/60 Hz
• Trip Unit: Thermal-magnetic, non-interchangeable
• Wire Range: Copper 3 AWG to 3/0 AWG, Aluminum 1 AWG to 2/0 AWG
• Dimensions (W x H x D): 7.00 in x 6.00 in x 4.00 in (Width x Height x Length)
• Operating Temperature: 40°C
• Weight: 3.71 lbs
• Country of Origin: Mexico
• UPC: 783643210233

Features

• High breaking capacity suitable for demanding electrical distribution systems
• Thermal-magnetic trip unit provides reliable protection against overload and short circuits
• Standard 40°C frame rating ensures consistent performance under typical operating conditions
• Load lugs only for secure and efficient wire termination
• Compatible with standard Siemens ED frame accessories and mounting hardware
• CSA Certified and UL Listed for safety and reliability
• Manual PUSH-TO-TRIP button for testing trip functionality
• Designed for use in individual enclosures, panelboards, switchboards, and approved equipment

Downloads and Links

• Siemens ED Frame Circuit Breaker Installation Instructions (PDF)
• Siemens Sentron Molded Case Circuit Breaker Catalog (PDF)