Eaton PDG21G0040TFFJ 40A 1P 600V Circuit Breaker | AmpState

Meet the Eaton PDG21G0040TFFJ — a 40 A, 1-pole, 600 V circuit breaker crafted for reliable circuit protection in panelboards, load centers, and electrical distribution systems. This device is designed to slot into existing Eaton installations with confidence, ensuring consistent performance and protection where it matters most.

Designed for replacement projects and stocking spares to keep your BOM aligned to the original part number, the PDG21G0040TFFJ helps you preserve system compatibility without compromising protection or workflow.

Specifications at a glance

• Manufacturer: Eaton
• Part number: PDG21G0040TFFJ
• Product type: Circuit Breaker
• Amperage: 40 A
• Poles: 1
• Voltage rating: 600 V
• Applications: Panelboards, load centers, and electrical distribution

Why this part matters

The PDG21G0040TFFJ is more than a replacement — it’s a precise match for the original equipment that keeps your electrical distribution aligned with the design intent. The 1-pole configuration protects a single circuit, while the 40 A rating suits a wide range of branch circuits common in commercial spaces and light industrial environments. A 600 V rating gives you headroom for higher voltage distribution setups, helping to maintain safety margins and reliability.

Who benefits

• Electrical contractors performing panelboard retrofits or targeted replacements
• Facilities managers responsible for reliable building electrical distribution
• Distributors stocking authentic Eaton parts to minimize downtime and maintain BOM integrity

Compatibility and support

Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit. AmpState offers this part, the PDG21G0040TFFJ, as a ready-to-order option to keep your project on schedule.

Practical tips for installation and use: verify that your panel or distribution device is rated for 600 V and that the circuit requires a 1-pole, 40 A protection device. Store spares in their original packaging to maintain device integrity, and confirm BOM alignment to ensure seamless replacements when needed.