Eaton HFD3150V 150A 3-Pole 3150 V Circuit Breaker

Meet the Eaton HFD3150V 150A 3-Pole 3150 V Circuit Breaker, a purpose-built protection device engineered to safeguard heavy-duty, high-voltage electrical systems. Part Number HFD3150V, this breaker is built to handle demanding industrial feeders and three-phase loads with precision and reliability.

Designed for three-phase circuits, this 3-pole breaker disconnects all lines (A, B, and C) simultaneously, ensuring a safe, coordinated shutdown in the event of overloads or faults. The 3150 V voltage rating makes it suitable for high-voltage distribution, transformers, and motor feeders in industrial environments where reliability matters most.

Key specifications

• Current rating: 150 A
• Pole configuration: 3-Pole
• Voltage rating: 3150 V
• Part number: HFD3150V
• Brand: Eaton

Why this matters

In three-phase systems, synchronized disconnection is essential to prevent hazardous conditions and equipment damage. The Eaton HFD3150V delivers coordinated trip across all phases, reducing arc hazards and protecting motors, transformers, and feeders from surge and short-circuit events. Built by Eaton, a long-standing name in electrical protection, this breaker combines robust mechanical design with dependable electrical performance for ongoing operation in harsh industrial settings.

Ideal use cases

• Protection for three-phase motor circuits in manufacturing lines and processing plants
• HV feeder protection in power distribution panels and switchgear
• Transformer feeders in large facilities, data centers, or utility rooms where high-voltage safety is critical

Installation and maintenance tips

Install by a licensed electrician in accordance with local electrical codes. Verify that the panel or gear accepts three-pole, 150 A devices and that the 3150 V rating matches your system. Proper torque on mounting hardware and correct bus bar alignment are essential for reliable operation. Schedule regular inspections to ensure no signs of wear, corrosion, or heat buildup, and replace any damaged components promptly to maintain system safety.

With the Eaton HFD3150V 150A 3-Pole 3150 V Circuit Breaker on hand, you’re equipping your three-phase high-voltage infrastructure with precise protection, quick response, and a trusted name in electrical safety.