Ite ET4746 - 225A, 600VAC, 3-Pole, Circuit Breaker

Meet the Ite ET4746 225A 600VAC 3-Pole Circuit Breaker—a purpose-built safeguard for demanding three‑phase power systems. Engineered to handle serious load demands, this unit delivers reliable overcurrent protection for panelboards, switchboards, and control panels, helping keep industrial processes running smoothly and safely.

Why the ET4746 stands out

• High-current capability: 225A rating makes it ideal for main feeders and large motor circuits where robust protection is essential.
• Three-phase reliability: 3-Pole design ensures simultaneous disconnection of all phases, preserving balance in your 3‑phase networks and minimizing fault energy into downstream equipment.
• Voltage preparedness: Up to 600VAC supports common industrial three-phase systems, enabling broad compatibility across manufacturing lines and commercial installations.
• OEM-friendly form factor: Built for straightforward integration into distribution panels, motor control centers, and control enclosures used in factories and facilities.
• Durable performance in real-world environments: Designed to deliver dependable protection in continuous operation settings typical of industrial and commercial settings.

Ideal applications

• Panelboards and switchboards in factories, logistics centers, and processing plants
• Control panels for machinery, conveyors, pumps, and HVAC systems
• Motor control centers and OEM equipment where three-phase protection is critical
• Any distribution point in a 3‑phase system that requires reliable, coordinated interrupt protection

What makes it valuable in real-world use

The ET4746 isn’t just a spec sheet entry—it’s a practical solution for keeping downtime to a minimum. In environments where large motors start and stop frequently or where multiple feeders share a common bus, this breaker’s three-pole configuration ensures all phases trip together. That coordinated response reduces the risk of phase imbalances, protects downstream equipment, and helps maintain safe shutdown sequences during fault conditions.

How it compares to other solutions

In three-phase applications, a true three-pole breaker like the ET4746 provides comprehensive protection across all conductors, unlike smaller or single/dual-pole devices that may leave one phase unprotected during a fault. This complete protection is especially important for equipment with heavy start-up current or complex interconnections, where consistent trip characteristics across all phases translate to better reliability and safer operation.

Practical tips for use

• Match the breaker’s 225A rating to the feeder or motor circuit you’re protecting to balance protection with acceptable nuisance-tripping risk.
• Verify that your installation’s voltage profile aligns with the 600VAC rating to ensure safe and compliant operation in your 3‑phase system.
• Plan for future scalability: if you anticipate higher loads, confirm compatibility with upstream protections and panel ratings before upgrading feeders.
• Coordinate protection with other devices in the same distribution chain to maintain selectivity and minimize impact from faults.