TJD422300WL **Older Style** - 300Amp Circuit Breaker

TJD422300WL **Older Style** - 300 Amp Circuit Breaker

The TJD422300WL Older Style Black Face molded case circuit breaker is designed for dependable overcurrent protection in your commercial and industrial electrical distribution systems, where maintaining compatibility with existing equipment matters. Built as part of the Q-Line Type TJD series, this 2-pole, 300-amp breaker features an internal common trip mechanism that helps protect connected circuits from overloads and short circuits. Its cable-in/cable-out lug-lug configuration allows for straightforward installation in a variety of panel and distribution applications, while the included line- and load-side lugs help you to simplify setup and replacement work.

With a 22k A.I.C. rating at 240VAC, the TJD422300WL is well-suited for facilities requiring reliable interruption capacity in legacy electrical systems. The older style black face design is especially useful when matching existing equipment layouts and maintaining continuity within installed switchgear or panelboard assemblies. Built to last and engineered for consistent operation, this breaker is commonly used in manufacturing facilities, commercial buildings, maintenance departments, and electrical retrofit projects where proper fit and functional replacement are essential.

Key Features and Benefits

• 300 Amp, 2-Pole Configuration: Designed to provide circuit protection for higher-capacity electrical distribution systems.
• 22kA Interrupting Capacity at 240VAC: Helps safely interrupt fault currents in commercial and industrial applications.
• Older Style Black Face Design: Supports compatibility with existing electrical systems and legacy equipment layouts.
• Internal Common Trip Mechanism: Disconnects both poles simultaneously during overload or fault conditions for added circuit protection.
• Cable-In/Cable-Out (Lug-Lug) Configuration: Simplifies wiring connections in many retrofit and replacement installations.
• Includes Line and Load-Side Lugs: Comes equipped with installed lugs to help reduce installation preparation time.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration equipment applications where HACR-rated breakers are specified.
• Q-Line Type TJD Construction: Designed for use in compatible Q-Line distribution systems and related electrical assemblies.
  

Technical Specifications

• Part Number: TJD422300WL
  
• Series / Type: TJD
  
• Product Style: Older Style Black Face
  
• Poles: 2
  
• Amperage: 300 Amps
  
• Voltage Rating: 240VAC
  
• A.I.C. Rating: 22kA @ 240VAC
  
• Configuration: Cable-In/Cable-Out (Lug-Lug)
  
• Trip Type: Internal Common Trip
  
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.
• Included Accessories: Line and Load-Side Lugs
  
• Application Rating: HACR Rated
  

Material Compliance and Certifications

• HACR Rated: Approved for HVAC and refrigeration equipment applications where HACR-rated breakers are specified.
• Industry Standards: Manufactured for use in accordance with applicable molded case circuit breaker standards.
• Compatible Equipment: Designed for installation in compatible Q-Line electrical distribution equipment.
• Commercial and Industrial Applications: Built for commercial and industrial electrical protection applications.
  

Where It Works Best

• The TJD422300WL circuit breaker is commonly used in commercial buildings and retail facilities, industrial control and power distribution systems, HVAC and refrigeration equipment installations, manufacturing plants and maintenance operations, retrofit projects requiring older-style black face breakers, panelboard and switchgear replacement applications, and facilities maintaining the existing Q-Line electrical infrastructure.