PDG21M0040TFFJ - 40 Amp Circuit Breaker

PDG21M0040TFFJ - 40 Amp Circuit Breaker

When you're replacing a circuit breaker, getting the details right matters. The Eaton PDG21M0040TFFJ is a 40A, 1-pole molded case circuit breaker from the Global Rated Power Defense family. This Frame 2 breaker has a 65kA interrupting rating at 277 VAC, along with a fixed trip and line and load lugs. Its dimensions are approximately 1.38 inches high, 6 inches wide, and 3.5 inches deep. That combination makes the PDG21M0040TFFJ a practical option for compatible electrical distribution applications that require these specific ratings and physical characteristics. If you're trying to match an existing breaker, compare more than just the amperage—the part number, pole count, voltage, interrupting rating, trip style, connections, and frame size all matter when determining the correct fit.

Key Features and Benefits

• 40-amp rating for applications designed around a 40A circuit breaker.
• 1-pole configuration for compatible single-pole electrical applications.
• 65kA interrupting rating at 277 VAC for systems requiring this level of interrupting capacity.
• Fixed-trip design provides a straightforward, predetermined trip configuration.
• Line and load lugs are included in the breaker configuration.
• Frame 2 construction within the Global Rated Power Defense product family.
• At just 1.38" H x 6.0" W x 3.5" D, its dimensions are easy to check against the available installation space.
• Clearly defined specifications make it easier to compare the breaker with an existing unit during maintenance or replacement work.
  

Technical Specifications

• Part Number: PDG21M0040TFFJ
  
• Type: Molded Case Circuit Breaker
  
• Product Family: Global Rated Power Defense
  
• Frame: Frame 2
  
• Poles: 1
  
• Amperage: 40A
  
• A.I.C. / Interrupting Rating: 65kA at 277 VAC
  
• Trip: Fixed
  
• Connections: Line and Load Lugs
  
• Height: 1.38 in.
  
• Width: 6.0 in.
  
• Depth: 3.5 in.
  

Material Compliance and Certifications

• Specific material compliance information, certifications, and agency listings were not included with the specifications provided for the PDG21M0040TFFJ. If your application requires specific certifications or compliance standards, check the manufacturer's documentation for the exact part number before installation.

Where It Works Best

• The PDG21M0040TFFJ makes sense when the job specifically calls for a 40A, 1-pole molded-case circuit breaker rated at 65kA at 277 VAC with a fixed trip and line/load lugs. It can be considered for compatible replacement, retrofit, maintenance, and new-installation applications where its electrical ratings, Frame 2 design, connections, and dimensions match the equipment requirements.
• Already have a breaker you're replacing? Start with the PDG21M0040TFFJ part number, but don't stop there. Compare the 40A rating, single-pole configuration, 65kA at 277 VAC interrupting rating, frame, trip type, lug arrangement, and dimensions with the existing equipment. A breaker that looks similar isn't necessarily interchangeable, so compatibility should be confirmed before installation by qualified electrical personnel and in accordance with applicable codes and manufacturer requirements.