Eaton PDG21M0045TFFL - 45 A, 600 V, 1-Pole Circuit Breaker | AmpState

Meet the Eaton PDG21M0045TFFL — a 45 A, 600 V, 1-pole molded case circuit breaker designed to shield your panelboards and load centers from overcurrent and short-circuit events. Built for dependable protection in real-world installations, this compact device fits where space is at a premium while delivering reliable performance when it matters most.

Key advantages that matter in the field

• Compact molded case design maximizes real estate inside crowded panels, helping you pack safely without sacrificing accessibility or serviceability.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to both overload conditions and instantaneous faults, reducing nuisance trips while maintaining circuit safety.
• OEM-load center compatibility is engineered to work seamlessly with matching Eaton loadcenters and panelboards, simplifying installation and inventory management.
• Versatile application range suitable for residential, commercial, and light industrial environments where dependable branch circuit protection is essential.

Why this design matters

The PDG21M0045TFFL combines a precise thermal element with a fast-acting magnetic mechanism to deliver protection that’s not only reliable, but also predictable across varying temperatures and load profiles. That means fewer unexpected outages, easier troubleshooting, and a safer electrical system for people and equipment alike.

Use cases and ideal installations

• New and retrofit panel installations where a 1-pole, 45 A breaker is the right fit for a dedicated branch circuit or subfeed.
• Residential panels needing robust short-circuit protection for critical circuits like HVAC, water heaters, or major appliances.
• Commercial subpanels and light industrial applications where space is tight and dependable protection is mandatory.
• Upgrading older equipment with a modern molded case breaker to improve protection coordination and fault response.

Specifications at a glance

• Manufacturer: Eaton
• Part Number: PDG21M0045TFFL
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Amperage Rating: 45 A
• Voltage Rating: 600 V
• Poles: 1
• Application: Branch circuit overcurrent and short-circuit protection

Practical tips for optimal results

For best results, pair this 1-pole 45 A breaker with a compatible Eaton panelboard or loadcenter to ensure proper physical fit and electrical coordination. When planning a replacement or upgrade, verify your circuits’ continuous load versus the breaker's 45 A rating, and consider existing fault-current levels to ensure the magnetic trip setting provides the intended protection without unnecessary interruptions.

Engineered for reliability and designed to integrate smoothly into Eaton-based systems, the PDG21M0045TFFL is a dependable choice when you need precise, space-efficient protection for your electrical infrastructure.