3VA5340-6EC61-0AA0 - 400A Class HJAS 2-Pole Circuit Breaker

3VA5340-6EC61-0AA0 - 400A Class HJAS 2-Pole Circuit Breaker

The 3VA5340-6EC61-0AA0 circuit breaker is a 400 amp molded case breaker used in systems where fault current isn’t something you can ignore. It’s a 2-pole breaker built on a 3-pole frame, which is common in commercial and industrial distribution gear. This model uses thermal magnetic protection, so it handles long-term overloads and sudden short circuits without needing any adjustments in the field. Once it’s installed, the protection stays where it’s supposed to. With a Class H interrupting rating of 65 kA at 480 volts AC, this breaker is meant for environments where available fault current is high. That includes feeder circuits, main distribution sections, and upstream protection where failure simply isn’t an option. The overload protection is fixed at 400 amps, and the instantaneous trip responds at 5 to 10 times the rated current, which helps clear faults quickly before they spread. Lugs are not included, which is typical for breakers in this range. That allows the installer to match the termination to the conductors already in place.

Key Features and Benefits

• Rated 400 amps: for higher-capacity distribution circuits
• Class H interrupting capacity: up to 65 kA at 480V AC
• Thermal magnetic trip unit (TM230): for stable, proven protection
• Fixed overload setting: to prevent improper field changes
• Fast short-circuit response: to limit downstream damage
• 2-pole design in a 3-pole frame: making it easier to fit into existing equipment

Technical Specifications

• Part Number: 3VA5340-6EC61-0AA0
• Frame Type: 3VA53
• Amperage: 400 A
• Poles: 2
• Voltage: 480V AC
• Interrupting Rating: 65 kA (Class H)
• Trip Type: Thermal Magnetic (TM230)
• Overload Protection: Ir = 400A, fixed
• Instantaneous Trip: 5–10 × In
• Lugs: Not included
• Shipping Weight: 6.3 lb
• Shipping Height: 9.8 in

Material Compliance and Certifications

• This breaker is UL listed and built for use in electrical systems that must meet North American safety and performance requirements. It’s commonly installed in equipment that is inspected, regulated, and expected to stay in service for years.

Where It Works Best

• This breaker is a good fit for industrial plants, commercial facilities, and large electrical panels where higher fault levels are present. It’s often used in feeder circuits or distribution sections where stable protection and high interrupting capacity are more important than adjustability.