ABB | T5N-3P-300A | Circuit Breaker | 300A | 3-Pole | 600V | Bolt-On

Introducing the ABB T5N-3P-300A Circuit Breaker — a purpose-built, bolt-on 3-pole protection device designed for demanding electrical systems. With a 300A rating and 600V capability, it’s engineered for reliable overcurrent protection in commercial, industrial, and utility panels that require precise ABB compatibility.

Purpose-built for maintenance, retrofit, and replacement projects, this breaker lets you restore original performance without major panel modification. The bolt-on design simplifies installation, enabling firm mounting and quick swap-outs when servicing existing equipment.

Key specifications

• Amperage: 300A
• Poles: 3-Pole
• Voltage: 600V
• Mounting: Bolt-On
• Part number: T5N-3P-300A

Important compatibility note: Confirm fit and ratings before ordering. The part number is the best reference for compatibility with ABB panels and retrofits, and ensures you match the precise electrical and physical dimensions required for a secure, code-compliant installation.

Ideal use cases

• Maintenance: replace worn or failed breakers in ABB bolt-on enclosures to restore protection without panel redesign.
• Retrofit: upgrade to a 300A, 3-pole solution in existing 600V systems where ABB T5N-class devices are specified.
• Replacement stock: keep a compatible ABB spare on hand to minimize downtime during critical outages.

Why choose the ABB T5N-3P-300A? It delivers dependable overcurrent protection in a compact, bolt-on package that aligns with ABB’s cabinet and frame standards. This is a precise match for panels and assemblies designed for the T5N-3P-300A, helping you maintain safe, compliant, and efficient electrical operation.

Ordering guidance: review the panel’s documented ratings and verify that the 300A, 3-pole, 600V bolt-on configuration matches your installation. If in doubt, consult your equipment manufacturer or trusted electrical distributor to confirm that T5N-3P-300A is the correct fit for your upgrade or replacement project.