Industrial NB3500PR 500A 3-Pole 600 V Circuit Breaker Potential Transformer

Industrial NB3500PR 500A 3-Pole 600 V Circuit Breaker Potential Transformer is engineered for demanding power environments where reliable protection and precise monitoring matter. With a 500 A current rating, a 3-pole design, and a 600 V maximum rating, this device provides balanced, robust protection across all three phases in industrial power networks. Part Number NB3500PR identifies this trusted protection solution in panel boards, MCCs, and other critical distribution points.

Key advantages that set the NB3500PR apart

• 500 A current rating supports high-load, three-phase applications without frequent trips.
• 3-pole construction ensures synchronized protection across all phases (L1, L2, L3), reducing the risk of unbalanced faults that can damage motors and equipment.
• 600 V voltage rating accommodates a wide range of industrial power networks, offering versatile deployment in demanding environments.
• Potential transformer compatibility enables accurate metering and protective signaling within smart protection schemes, helping you monitor performance and respond quickly to anomalies.
• Rugged, industrial-grade design built for reliability in challenging conditions, from manufacturing floors to control centers.

Ideal use cases

• Main distribution panels and motor control centers in factories and plants
• Protecting heavy machinery and process lines that run on 3-phase power
• Integration with metering and protection relays to support centralized monitoring and fault diagnostics
• Retrofits or upgrades in systems that require higher current protection without compromising 3-phase balance

What this means for your operation

Choosing the NB3500PR means better uptime and safeguarded equipment. The 3-pole, 500 A configuration delivers decisive fault isolation across all phases, while the potential transformer capability provides the signaling foundation for accurate monitoring and faster corrective actions. In real-world terms, you can reduce unplanned downtime, protect expensive motors and drives, and maintain tighter control over your distribution reliability.

Technical snapshot

• Part Number: NB3500PR
• Current rating: 500 A
• Poles: 3
• Voltage rating: 600 V