Eaton WMZT3D04 4A 3-Pole 480 V Circuit Breaker

Meet the Eaton WMZT3D04 4A 3-Pole 480 V Circuit Breaker—the compact powerhouse that delivers reliable three-phase protection for demanding electrical systems. With a precise 4-amp current rating and three poles, this device ensures synchronized interruption across all phases, helping safeguard wiring and equipment in industrial and commercial environments.

Key specifications at a glance

• Manufacturer: Eaton
• Part number: WMZT3D04
• Current rating: 4 A
• Poles: 3
• Voltage rating: 480 V

Where this breaker shines

• Designed for 480 VAC three-phase circuits common in industrial equipment, processing lines, and commercial power distribution.
• Three-pole configuration provides balanced protection across all phases, reducing the risk of phase-to-phase faults and equipment damage.
• Compact, robust build from a trusted manufacturer, ideal for replacing worn breakers in standard electrical panels and control enclosures.

Why choose the WMZT3D04 over generic alternatives

• Specifically rated for 480 V three-phase systems, ensuring appropriate protection for high-voltage networks.
• 4-amp rating targets smaller loads and sensitive equipment where precise current control matters, helping prevent nuisance trips while still delivering reliable fault interruption.
• Part of Eaton’s established line of protection devices, offering compatibility with Eaton distribution ecosystems and a dependable support footprint.

Practical use cases

• Protect small to moderate three-phase motors and pumps operating on 480 V in manufacturing or processing facilities.
• Use in control panels and motor control centers where tight overcurrent protection is essential for safe operation.
• Replace aging breakers in retrofit projects to restore robust three-phase protection in existing 480 V networks.

Tips for installation and operation

• Confirm your system is a 480 V three-phase setup and that the load current aligns with a 4 A protection level before installation.
• Ensure the breaker is seated in a compatible panel or enclosure designed for 3-pole protection devices.
• Follow local electrical codes and manufacturer guidelines for safe wiring practices and preventive maintenance.

The Eaton WMZT3D04 4A 3-Pole 480 V Circuit Breaker is a targeted solution for precise, reliable three-phase protection in high-voltage environments. Its 4 A rating and three-pole architecture offer dependable fault interruption across all phases, helping you keep critical systems running smoothly and protect invaluable equipment.