EC3050 - 50Amp Circuit Breaker

EC3050 - 50 Amp Circuit Breaker

The EC3050 circuit breaker is a 3-pole, 50-amp thermal-magnetic breaker designed for dependable circuit protection in electrical distribution systems that utilize EC-frame breakers. Built to deliver the proper form, fit, and function required for maintaining compatible equipment, this breaker helps protect wiring and connected equipment from overloads and short circuits. Its thermal-magnetic trip mechanism responds to sustained overcurrent conditions while also reacting quickly to short-circuit faults. Rated 10kA at 240VAC, the EC3050 is suited for applications where dependable branch circuit protection is needed within systems built around EC frame devices. The breaker features a non-interchangeable trip unit and includes load terminals for straightforward installation. With a 40°C ambient temperature rating, this model is designed for consistent operation under typical electrical room conditions. As with many circuit protection components built for long service life, the EC3050 was manufactured with durability in mind, helping maintain continuity in legacy electrical systems where compatible breakers are required.

Key Features and Benefits

• 3-Pole configuration for protecting three-phase electrical circuits
• 50 Amp rating suitable for branch and feeder circuit protection within compatible systems
• Thermal-magnetic trip mechanism that responds to both overload and short-circuit conditions
• 10kA interrupting capacity at 240VAC designed for standard fault protection requirements
• EC frame type built for proper physical and electrical compatibility with EC-series equipment
• Non-interchangeable trip unit to maintain the original breaker configuration
• Load terminals included to support installation and secure conductor connections
• 40°C ambient rating suitable for common commercial and industrial environments
• Manufactured with durable components intended for long-term service in maintained electrical systems

Technical Specifications

• Part Number: EC3050
  
• Poles: 3
  
• Amperage Rating: 50A
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity (A.I.C.): 10kA @ 240VAC
  
• Frame Type: EC
  
• Trip Type: Thermal-Magnetic
  
• Trip Unit: Non-interchangeable
  
• Ambient Temperature Rating: 40°C
  
• Included Connections: Load terminals included
  
• Shipping Weight: 4.13 lbs
  
• Shipping Height: 6.0 in
  

Material Compliance and Certifications

• Circuit breakers in this class are manufactured to align with commonly recognized industry electrical safety and performance standards applicable to molded case circuit breakers. Materials and construction are designed to support safe operation when installed and maintained according to applicable electrical codes and manufacturer guidelines. Always confirm compatibility with the intended panel or distribution equipment before installation.

Where It Works Best

• The EC3050 50A 3-pole circuit breaker is commonly used in electrical distribution systems that require a breaker compatible with EC-frame panelboards or similar legacy equipment. Typical applications include:
• Commercial electrical panels
• Industrial power distribution equipment
• Facilities maintaining existing EC-frame breaker systems
• Branch or feeder circuit protection in three-phase power setups
• Its ratings and configuration make it suitable where maintaining the original equipment design and compatibility is important for continued operation of established electrical infrastructure.