Westinghouse HFDM070MM - 70A, 600VAC / 250VDC, 3-Pole, Circuit Breaker

Westinghouse HFDM070MM is a robust, 70A, 3-pole circuit breaker designed to deliver reliable overcurrent protection in demanding electrical environments. With a versatile dual voltage rating of 600VAC / 250VDC, this device protects both AC distribution and DC motor-drive circuits, simplifying system design and inventory for diverse applications.

• 3-Pole protection provides complete three-phase coverage for panelboards, switchboards, and control panels, reducing the risk of unbalanced loads and fault propagation.
• 70A current rating is well suited for feeders, motors, and associated equipment in light to heavy industrial setups.
• 600VAC / 250VDC voltage capability supports mixed environments where both AC power distribution and DC control circuits are present, offering flexible deployment in modern facilities.
• Industrial, commercial, and OEM readiness—a dependable choice for distribution panels and motor control centers where consistent performance matters.
• Compact, straightforward integration into standard panel layouts helps streamline installation and maintenance, minimizing downtime in critical systems.

This circuit breaker is ideal for engineers and technicians responsible for safeguarding three-phase systems in factories, plants, and commercial facilities. It excels in motor control centers, distribution panels, and control panels where space, reliability, and clear protection boundaries are essential. By consolidating AC and DC protection in a single, 3-pole device, the HFDM070MM reduces part counts and simplifies specifications, making it a practical choice for both retrofit projects and new builds.

Use cases and scenarios:

• Protect three-phase feeders feeding motors, pumps, and conveyors in manufacturing lines.
• Install in switchboards and control panels that manage mixed AC/DC loads in industrial automation settings.
• Deploy in OEM equipment where a single protective device must cover multiple circuit types and voltages.

Practical tips: verify your system’s voltage and phase requirements match the HFDM070MM’s 600VAC / 250VDC rating, confirm a three-pole configuration aligns with your panel design, and ensure wiring gauges and terminations are suitable for 70A service. With this breaker, you’re pairing precise protection with flexible, easy-to-implement wiring for durable, long-term performance.