E43B030 - 30Amp Circuit Breaker

E43B030 - 30 Amp Circuit Breaker

The E43B030 molded case circuit breaker is designed to provide dependable circuit protection in electrical distribution systems that require a 30-amp, three-pole breaker within the E43 frame series. Built for consistent operation in commercial and industrial panelboards, this breaker helps safeguard electrical equipment by interrupting overloads and short circuits within its rated capacity. With an interrupting rating of 18kA at 480VAC and 25kA at 240VAC, the E43B030 supports installations where reliable protection and compatibility with existing equipment are essential. The bolt-on mounting configuration provides a secure mechanical connection inside compatible panelboards, while included load-side terminals simplify installation. Rated for 40°C operation and HACR applications, this molded case circuit breaker is commonly used in HVAC-related circuits and other distribution systems where a properly matched replacement breaker is required. Like many breakers from this class and era, it was designed with durability in mind and intended to provide long service life when installed and maintained according to electrical standards.

Key Features and Benefits

• 30 Amp Rating: Designed to protect branch circuits requiring a 30A breaker.
• Three-Pole Configuration: Suitable for three-phase electrical distribution systems.
• Bolt-On Mounting: Provides a firm and stable connection to compatible panelboards.
• E43 Frame Type: Fits panelboards and systems designed for E43 series molded case breakers.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration equipment circuits.
• Load-Side Terminals Included: Supports straightforward installation and conductor termination.
• 40°C Rated Operation: Built for use in standard electrical environments with elevated ambient temperatures.
• Durable Molded Case Construction: Designed to handle the demands of long-term electrical service.

Technical Specifications

• Part Number: E43B030
• Frame Type: E43
• Breaker Type: Molded Case Circuit Breaker
• Poles: 3
• Amperage Rating: 30A
• Interrupting Capacity:
  • 18kA @ 480VAC
  • 25kA @ 240VAC
• Mounting Style: Bolt-On
• Temperature Rating: 40°C
• HACR Rating: Yes
• Included Accessories: Load-side terminals
• Approximate Shipping Weight: 3.0 lbs
• Approximate Shipping Height: 6.35 in

Material Compliance and Certifications

• Electrical Safety and Performance Standards: The E43B030 circuit breaker is manufactured to meet applicable electrical safety and performance standards associated with molded case circuit breakers used in commercial and industrial power distribution systems.
• HACR Certification: HACR certification indicates suitability for HVAC-related equipment circuits when installed according to code requirements.
• Code Compliance: Proper installation and application should follow National Electrical Code (NEC) guidelines and all relevant local electrical regulations.

Where It Works Best

• Commercial building electrical distribution panels
• Industrial control panels and machinery circuits
• HVAC and refrigeration equipment installations
• Electrical maintenance and replacement in existing panelboards
• Facilities maintaining legacy power distribution systems
• Its ratings and bolt-on configuration make it a practical form, fit, and function replacement where an E43 frame breaker with matching electrical specifications is required.