Heinemann CD3-A6-DU - 25A, 3-Pole, Circuit Breaker

Meet the Heinemann CD3-A6-DU — a 25A, 3-Pole circuit breaker designed for dependable overcurrent protection in three-phase systems. Built to perform in panelboards, switchboards, and control panels, it’s a trusted choice for industrial, commercial, and OEM applications where safe operation and reliable protection matter most.

Why this model stands out for real-world electrical systems:

• 25A per pole provides precise protection for branch circuits and three-phase loads without unnecessary trips.
• 3-Pole configuration optimizes protection for balanced three-phase power, simplifying wiring and coordination in motor control centers.
• Designed for panelboards, switchboards, and control panels to support compact, organized electrical distribution and easy integration into existing systems.
• Durable, dependable performance suited for environments where continuous operation and safety are critical.

Ideal applications include:

• Industrial facilities with three-phase motors, conveyors, pumps, and CNC equipment
• Commercial electrical distribution where reliable overload protection is essential
• OEM equipment manufacturing, where a robust, ready-to-install protection device is needed for control panels and distribution enclosures

What problems does it solve?

• Prevents expensive damage from overloads and short circuits by interrupting fault currents promptly
• Minimizes unplanned downtime through reliable trip performance and stable operation in motor control centers
• Promotes safer, more predictable electrical distribution in multi-phase systems

Practical tips for use:

• Ensure system compatibility by matching the panel rating to 25A per pole and verifying three-phase availability
• Plan installation in distribution panels and motor control centers where three-phase protection is required
• Maintain documentation of the breaker model (CD3-A6-DU) for service, parts replacement, and panel audits