GE TJJ436Y400WL - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState

GE TJJ436Y400WL is a rugged 400A, 600V, 3-pole molded case circuit breaker built to shield panelboards and loadcenters from overcurrent and short-circuit events. Its compact design maximizes valuable panel space without sacrificing protection, making it an ideal upgrade or new-install component in today's electrical systems.

Why this breaker stands out

• Space-efficient molded case design optimizes panel layout, enabling easier wiring and a cleaner installation in tight electrical enclosures.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining thermal and magnetic sensing to respond accurately to both gradual overloads and sudden faults.
• OEM-compatible compatibility is designed to pair with matching GE OEM loadcenters and panelboards for dependable fit, labeling, and performance.
• Three-pole configuration provides robust protection for 3-phase systems, making it suitable for commercial and light-industrial applications in addition to residential setups.
• High-current capability at 400A and 600V rating supports demanding branch circuits while preserving system integrity and safety.

Ideal use cases

• Protect main service panels and subpanels in commercial spaces where compact form factor and reliable trip performance are critical.
• Upgrade older panelboards to enhance protection for 3-phase feeders and heavy-duty branch circuits.
• retrofit projects that require a GE-compatible solution to maintain consistent protection across the electrical distribution network.

Technical specifications

• Manufacturer: GE
• Part Number: TJJ436Y400WL
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 400A
• Voltage rating: 600V
• Number of poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

With its precise protection mechanics, OEM compatibility, and space-conscious design, the GE TJJ436Y400WL is a practical, reliable choice for electricians and facility managers aiming to safeguard electrical systems without compromising panel capacity. Consider it for demanding residential, commercial, and light-industrial installations where dependable, codes-aligned protection is essential.