Thomas & Betts | TB315 | Circuit Breaker | 3-Pole

Introducing the Thomas & Betts TB315 3-Pole Circuit Breaker—a purpose-built solution for 3-phase electrical systems. Identified by the part number TB315, this unit is designed for maintenance, retrofit, and replacement projects where exact specifications matter.

3-Pole design for 3-phase protection

The TB315 provides three poles, enabling reliable interruption across all phases in a 3‑phase distribution setup. This makes it ideal for commercial and industrial panels that require synchronized interrupter action and consistent trip characteristics across a three-conductor network.

Why TB315 stands out

• Part number TB315 is your best reference for compatibility—use it to verify fit against your panel's documentation.
• Designed for maintenance, retrofit, and replacement where matching specs are required, reducing downtime and simplifying procurement.
• Simple identification helps technicians confirm you have the correct unit before ordering, avoiding mismatches that can complicate installation.

Perfect use cases

Ideal for facilities managing legacy or modular electrical systems where 3-pole breakers are the norm. Use TB315 in service panels, switchgear, and distribution boards that call for a 3-pole breaker with the same ratings and trip characteristics as the original equipment.

Practical tips for a smooth fit

• Always confirm fit and ratings before ordering. The TB315 is the describing reference for compatibility; cross-check with your panel's manufacturer specifications.
• Keep a record of the part number (TB315) for future replacements or retrofits to ensure consistency across maintenance cycles.

Equip your electrical system with a trusted TB315 3-Pole Circuit Breaker from Thomas & Betts and streamline maintenance, retrofit, and replacement workflows with a unit that's explicitly matched to your installation needs.