TJJ426175WL **Older Style** - 175Amp Circuit Breaker

TJJ426175WL **Older Style** - 175 Amp Circuit Breaker

Designed for dependable circuit protection in your commercial and industrial electrical distribution systems, the TJJ426175WL molded case circuit breaker delivers solid overcurrent and short-circuit protection in a compact, field-proven design. This 2-pole, 175-amp breaker features an older style black face configuration and is built with a non-interchangeable thermal magnetic trip unit and internal common trip mechanism for consistent operation across both poles. Its cable-in/cable-out lug-lug setup simplifies installation in compatible switchboards, panelboards, and distribution equipment where direct cable termination is required.

Built as part of the trusted Q-Line family, the Type TJJ breaker is HACR rated and engineered for long service life in demanding environments. With included line- and load-side lugs, this breaker is well-suited for maintenance applications, replacement projects, and legacy electrical systems that require exact form, fit, and function compatibility. The compact footprint also helps you to streamline installation where space inside existing equipment is limited.

Key Features and Benefits

• 175 Amp Continuous Current Rating: 175 Amp continuous current rating for commercial and industrial power distribution applications.
• 2-Pole Configuration: 2-pole configuration with internal common trip for coordinated circuit protection.
• Older Style Black Face Design: Older style black face design for compatibility with existing legacy systems and equipment layouts.
• Thermal Magnetic Trip Unit: The thermal magnetic trip unit helps protect against overloads and short circuits.
• Non-Interchangeable Trip Unit: Non-interchangeable trip unit maintains factory-configured protection settings.
• Q-Line Construction: Q-Line molded case circuit breaker construction is built for lasting durability.
• Cable-In/Cable-Out Configuration: Cable-in/Cable-out (Lug-Lug) configuration supports direct conductor termination.
• Included Lugs: Includes line-side and load-side lugs for installation convenience.
• HACR Rated: HACR rated for use in heating, air conditioning, and refrigeration equipment applications.
• Compact Dimensions: Compact dimensions help support installations in existing switchgear and panel assemblies.
  

Technical Specifications

• Part Number: TJJ426175WL
  
• Type: TJJ
  
• Circuit Breaker Style: Older Style Black Face
  
• Poles: 2
  
• Amperes: 175A
  
• Trip Unit: Thermal Magnetic
  
• Trip Configuration: Internal Common Trip
  
• Trip Unit Type: Non-Interchangeable
  
• Mounting / Connection: Cable-in/Cable-out (Lug-Lug)
  
• Included Accessories: Line and Load-Side Lugs
  
• HACR Rated: Yes
  
• A.I.C. Rating:
  • 22k @ 600VAC
  • 30k @ 480VAC
  • 42k @ 240VAC
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.

Material Compliance and Certifications

• Industry Compatibility: The TJJ426175WL molded case circuit breaker is manufactured for use in electrical distribution systems requiring dependable overcurrent protection and compatibility with applicable industry installation standards.
• HACR Rating: Its HACR rating supports use in HVAC and refrigeration-related applications where permitted by code and equipment specifications.
• Installation Considerations: Always confirm system requirements, interrupting capacity, and installation compatibility prior to use.
  

Where It Works Best

• The TJJ426175WL is commonly used in commercial buildings, industrial facilities, mechanical and HVAC equipment systems, manufacturing plants, distribution panels and switchboards, legacy electrical systems requiring matching breaker configurations, and maintenance and replacement projects where form and fit are critical. This breaker is especially useful when maintaining existing infrastructure that depends on older-style molded case breakers with specific mounting dimensions, lug arrangements, and interrupting ratings.