997319 - 175 Amp Circuit Breaker

997319 - 175 Amp Circuit Breaker

When you’re replacing a breaker in an existing system, the most important thing is getting something that fits right and works the way it’s supposed to. The 997319 molded case circuit breaker is designed for exactly that. With a 175 amp rating, 3-pole configuration, and 600VAC capacity, it’s a solid match for many commercial and industrial setups that rely on ML-3 (J-frame) breakers. This unit uses a thermal-magnetic trip mechanism, which means it responds to both sustained overloads and sudden short circuits. That kind of straightforward protection is what keeps equipment running and helps prevent costly downtime. Its size and layout follow standard dimensions, making it easier to install into compatible panels without unnecessary modifications. If you’re maintaining older gear or keeping an existing system up and running, this breaker does what you need—no guesswork, no unnecessary extras. Just a dependable, properly rated replacement built to last.

Key Features and Benefits

• 175 amp rating for consistent load handling
• 3-pole design for three-phase systems
• Thermal-magnetic trip for overload and short-circuit protection
• Rated for up to 600VAC applications
• ML-3 (J-frame) compatibility for proper fit in existing equipment
• Standard dimensions help simplify installation
• Built for long-term, everyday use in working electrical systems

Technical Specifications

• Part Number: 997319
  
• Amperage: 175A
  
• Poles: 3
  
• Voltage Rating: 600VAC
  
• Frame Type: ML-3 (J-Frame)
  
• Trip Type: Thermal-Magnetic
  
• Dimensions:
  • 6.00" W x 10.38" H x 3.88" D
• Weight: 14 lbs
  

Material Compliance and Certifications

• Industry Standards: This breaker is produced to meet standard expectations for molded case circuit breakers used in commercial and industrial electrical systems. It’s intended for installations that follow applicable electrical codes and regulations. Always verify compatibility and code requirements before 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

• Commercial electrical distribution panels
• Industrial facilities and production environments
• Equipment protection in manufacturing systems
• Retrofit and maintenance projects
• Replacement for ML-3 / J-frame breakers in existing setups