General Electric | TJD432Y400 | Circuit Breaker | 400A | 3-Pole | 240V

Reliable, high-capacity protection for commercial and industrial electrical systems starts with a trusted GE circuit breaker. The General Electric TJD432Y400 is designed for stiff-duty service in 240V, three-phase environments. With a 400A rating and a 3-pole configuration, this unit delivers dependable protection for feeders, distribution panels, and critical equipment.

Key benefits include precise trip control, straightforward replacement in compatible GE panels, and a form factor that aligns with legacy and modern GE equipment. This isn’t a generic breaker — it's a genuine replacement part built to match the specifications you rely on.

Core specifications

• Amperage: 400A
• Poles: 3-Pole
• Voltage: 240V
• Reference: Part number TJD432Y400

Why this GE breaker stands out

• Exact compatibility — the part number is your best reference to ensure a correct fit with the panel you’re upgrading, retrofitting, or replacing.
• Solid for maintenance and retrofit projects — when you need to keep a system running safely and with minimal downtime, this 400A, 3-pole unit helps you swap in quickly without altering upstream wiring.
• 3-phase protection — ideal for distributing heavy loads across three hot legs in commercial and light-industrial environments.
• Quality you can trust — built by GE to meet rigorous industry standards, ensuring dependable performance across years of service.

Use cases and ideal applications

• Upgrading older panels that require a 3-pole, 240V, 400A protection device
• Replacement in service panels, distribution boards, or motor control centers that utilize GE-compatible parts
• New installations in commercial facilities with three-phase feeders demanding robust protection and minimal downtime

Practical notes and buying tips

Before you order, confirm fit and ratings against your existing equipment. The TJD432Y400 is listed as the best reference by part number for compatibility, so double-check the panel’s documentation to avoid mismatches. If you’re unsure, consult your electrical professional to verify the panel classification and voltage, and ensure proper handling and replacement procedures.