General Electric | TB13040 | Circuit Breaker | 40A | 3-Pole | 600V

General Electric TB13040 Circuit Breaker is a trusted, three‑phase protection device designed for demanding electrical environments. With a 40A rating across 3 poles and a 600V maximum, this GE component delivers reliable overcurrent protection for mid‑voltage, three‑phase applications. It’s the go‑to choice when you need a precise match to existing panel infrastructure, retrofit projects, or a precise replacement that keeps your system running safely and consistently.

Key specifications

• Amperage: 40A
• Poles: 3‑Pole
• Voltage rating: 600V
• Part number: TB13040 (best reference for compatibility)

Why this matters

Choosing the TB13040 means sticking with a standard, widely used General Electric design for three‑phase systems. The 3‑pole configuration provides balanced protection across all phases, reducing the risk of unbalanced loads and nuisance trips. The 600V rating expands its suitability to medium‑voltage panels and equipment, giving you a versatile solution for industrial controls, commercial distribution, and equipment racks that operate at higher voltages. With a precise 40A capacity, it protects circuits without unnecessary nuisance tripping, helping maintain uptime for motors, drives, and other critical loads.

Ideal use cases

• Maintenance: Replace a failed breaker in GE‑compatible panels to restore full protection.
• Retrofit: Update legacy electrical installations to current, compatible TB13040 specifications.
• Replacement: Use TB13040 as the definitive reference to ensure seamless fit and performance in three‑phase systems.
• Three‑phase distribution: Protect branch circuits powering motors, contactors, and industrial equipment in commercial or light industrial settings.

Fit & compatibility

Before ordering, confirm the fit and ratings align with your panel and system requirements. The TB13040 part number is your best reference for compatibility, so cross‑check it against your panel catalog or service manual to ensure a drop‑in replacement or retrofit that preserves protective characteristics and electrical clearances.

Installation tips

For safety and reliability, have a licensed electrician perform installation. Always de‑energize the panel and verify there’s no residual voltage before handling. If you’re replacing an older unit, keep a note of the panel model and series to verify mounting and terminal configuration match the TB13040 specifications.