Eaton WMZT1C04 4A 1-Pole 480 V Circuit Breaker Potential Transformer

Protect critical 480-volt circuits with precision using the Eaton WMZT1C04 4A 1-Pole 480 V Circuit Breaker Potential Transformer. Built for reliability in demanding environments, this compact single-pole device delivers targeted overcurrent protection while staying compatible with Eaton's protection and metering ecosystems.

Key reasons to choose WMZT1C04:

• 1-Pole design for space-efficient protection in 480 V panels and switchgear.
• 4 A current rating — ideal for dedicated feeders and control circuits that require precise, low-amperage protection while maintaining full fault protection for the surrounding network.
• 480 V voltage rating ensures compatibility with standard industrial power distribution in commercial facilities, manufacturing floors, and data centers.
• Potential Transformer compatibility — designed to support measurement and signaling in systems that rely on potential transformer-based metering or relay control.
• Rugged Eaton build with straightforward installation in existing Eaton panels, reducing downtime and integration effort.
• Small footprint that frees up space in crowded electrical enclosures, aiding easier wiring and future upgrades.

Who benefits

Electrical engineers, facilities managers, and licensed electricians working on low- to medium-voltage distributions will appreciate the WMZT1C04 for its precise current threshold, dependable performance, and compatibility with monitoring schemes that depend on potential transformer signals.

Typical use cases

• Feeder protection for 480 V single-phase or derived circuits in commercial buildings, manufacturing lines, or data centers.
• Control circuits and auxiliary feeders where compact, reliable protection is essential.
• Systems employing potential transformer-based metering and protection relays that require clean, consistent signaling from the breaker.

Specifications at a glance

• Part Number: WMZT1C04
• Current Rating: 4 A
• Poles: 1
• Voltage Rating: 480 V
• Type: Circuit Breaker, Potential Transformer compatible

Practical setup tips: verify compatibility with your Eaton panels, ensure the 4 A rating matches the protection needs of the circuit, and pair this breaker with appropriate CTs or relays if your system uses potential-transformer-based monitoring. Regular inspection of connections and periodic testing of tripping functionality will help maintain reliable protection over the life of the installation.