997317 - 125 Amp Circuit Breaker

997317 - 125 Amp Circuit Breaker

When you're working with existing electrical equipment, the last thing you need is guesswork. The 997317 molded case circuit breaker is built for straightforward replacement in systems that use an ML-3 (J-frame) design. With a 125 amp rating and 3-pole configuration, it’s a practical choice for maintaining protection across three-phase circuits in commercial and industrial setups. This breaker uses a thermal-magnetic trip mechanism, which means it responds to both long-term overloads and sudden short circuits. That balance is exactly what keeps equipment protected without unnecessary downtime. It’s a design that’s been trusted for years—and it continues to do the job in systems that rely on it every day. Physically, it fits where it’s supposed to. Electrically, it performs the way your system expects. And just as important, it’s built to last, making it a dependable option when you’re keeping older equipment up and running.

Key Features and Benefits

• 125 amp rating for consistent circuit protection
• 3-pole design for three-phase electrical systems
• Thermal-magnetic trip for both overload and short-circuit protection
• ML-3 (J-frame) compatibility for proper fit in existing equipment
• Rated for up to 600VAC applications
• Designed for long-term use in demanding environments
• Straightforward replacement—no unnecessary modifications

Technical Specifications

• Part Number: 997317
  
• Amperage: 125A
  
• Poles: 3
  
• Voltage Rating: 600VAC
  
• A.I.C. Rating: 600VAC
  
• Frame Type: ML-3 (J-Frame)
  
• Trip Type: Thermal-Magnetic
  
• Dimensions:
  • 6.00" W x 10.38" H x 3.88" D
• Ship Weight: 14 lbs
  

Material Compliance and Certifications

• Industry Standards: This circuit breaker is manufactured to meet standard industry requirements for molded case circuit protection. It aligns with commonly accepted electrical safety and performance guidelines for use in commercial and industrial systems. Always refer to equipment labeling and applicable codes to confirm compatibility with your specific installation.
• UL Standards: When installed according to electrical codes, you can have confidence that this unit adheres to expected construction and compliance benchmarks.
  

Where It Works Best

• Existing panelboards and switchgear using ML-3 frame breakers
• Commercial buildings with established electrical infrastructure
• Industrial facilities running three-phase power systems
• Maintenance and repair jobs where matching form and fit matters
• Applications requiring dependable overload and short-circuit protection