APC PD3P300AT5B 3-Pole Circuit Breaker, 300A

Ensure uninterrupted, scalable power protection for critical infrastructure with the APC by Schneider Electric PD3P300AT5B 3-pole 300A circuit breaker. Designed for data center and security environments, this circuit breaker provides a high-capacity, balanced three-phase feed that protects UPS-backed loads — including surveillance, monitoring and networking equipment — from overloads and faults. The PD3P300AT5B integrates directly with Symmetra PX250/500kW UPS systems, simplifying deployment and enabling seamless expansion as rack-level power needs grow. Factory-tested and certified to CE, RoHS and UL standards, the unit delivers predictable reliability and easier compliance for regulated installations. At a compact 21.5" x 22" x 17" and weighing just over 15 lb, it fits efficiently into power distribution configurations while maintaining accessible serviceability. Backed by a 1-year limited warranty, this APC circuit breaker helps reduce downtime risk and simplifies maintenance planning for IT, physical security and surveillance operations. Add the PD3P300AT5B to your power distribution strategy to strengthen uptime and scale with confidence — contact sales or order today to protect your critical systems.

• Delivers dependable, high-capacity power protection to minimize downtime for critical loads
• Seamlessly integrates with Symmetra PX250/500kW UPS for simplified, scalable power distribution
• 3‑pole, 300A design supports robust, balanced three-phase loads common in data centers and security setups
• Factory-tested and certified (CE, RoHS, UL) for reliable performance in monitoring, surveillance and IT environments
• Compact, service-friendly form factor with a 1-year limited warranty to streamline maintenance and support