Square D NA36700 700A 3-Pole 600 V Circuit Breaker Potential Transformer

Square D NA36700 700A 3-Pole 600 V Circuit Breaker Potential Transformer

Designed for demanding industrial power distribution, the Square D NA36700 combines robust protection with integrated sensing to help you manage 600 V systems with confidence. This 700 A, three-pole circuit breaker provides reliable interruption and coordinated protection for multi‑phase circuits, making it a trusted choice for panels, switchgear, and critical load centers.

Key Features that Matter

• High current capacity: 700 A rating to safeguard heavy feeders and large motor circuits without compromising protection or performance.
• Three-pole design: Streamlines protection of three-phase systems, simplifying installation and ensuring balanced fault response across phases.
• 600 V maximum voltage: Suitable for standard industrial distribution networks and equipment designed for up to 600 volts.
• Integrated potential transformer functionality: Enables accurate sensing, metering, and control integration, reducing field wiring complexity and improving relay coordination.
• Part number NA36700: A recognized Square D component with a history of compatibility in legacy and modern Square D/SCHNEIDER Electric installations.

Why This Breaker Stands Out

If your goal is reliable protection in a high‑amperage, three‑phase environment, the NA36700 offers a purposeful blend of protection and monitoring. The built‑in potential transformer capability means you can feed protective relays and metering circuits with accurate, conditioned signals right from the breaker, helping you reduce wiring complexity and improve fault diagnostics. This isn’t just a switch—it's a protection and measurement node within your 600 V distribution network.

Ideal Use Cases

• Protection for large feeders in industrial panels and switchgear operating at up to 600 V.
• Main service disconnects and distribution blocks where three‑phase balance is critical for equipment longevity.
• Systems requiring streamlined connection to protection relays and metering equipment through an integrated potential transformer pathway.
• Replacement part in established Square D installations needing a high‑capacity, reliable, and compatible 3‑pole solution.

Practical Benefits

• Operational reliability: Built to withstand demanding industrial duty with consistent trip performance across all three phases.
• Simplified wiring: Potential transformer integration reduces the need for auxiliary metering connections, saving time during installation and maintenance.
• Better diagnostics: Access to accurate sensing signals improves fault localization and maintenance planning.
• Future‑proofed compatibility: Meets the needs of legacy Square D systems while aligning with contemporary protection schemes.

Installation and Compatibility Tips

Ensure the device is compatible with your 600 V, three‑phase distribution setup and that the bus configuration matches your panel or switchgear. Plan for protective relay and metering integration by leveraging the breaker’s potential transformer functionality, and verify replacement part compatibility with existing Square D/North American installations. As with any high‑power component, follow all safety and site‑specific electrical guidelines during installation and maintenance.

What You’re Getting

The Square D NA36700 700A 3‑Pole 600 V Circuit Breaker Potential Transformer is a high‑capacity protection device designed for industrial environments where robust protection, accurate sensing, and streamlined integration are essential. It’s a dependable choice for engineers and technicians looking to safeguard critical loads while maintaining clear visibility into electrical system performance.