JL3F400 - 400Amp Max. *Frame Only*

JL3F400 - 400Amp Max. *Frame Only*

The JL3F400 is a little different from a standard molded-case circuit breaker, so it's worth checking exactly what you need before installation. The JL3F400 is built to last and is a practical choice when the job calls for this specific JL3 frame and compatibility with existing or legacy electrical equipment. Just remember that the correct trip unit and lug terminals must be matched separately.

Key Features and Benefits

• 400A JL3 frame with a three-pole configuration.
• Supplied as FRAME ONLY—not as a complete circuit breaker assembly.
• No trip unit included; the required compatible trip unit can be selected separately.
• No lug terminals included; compatible terminals must be sourced separately for the installation.
• 40°C rated and identified as a Type ET, 400 Ampere "JL" Frame.
• Useful for maintaining compatible existing and legacy equipment where the JL3 frame configuration is called for.
  

Technical Specifications

• Part Number: JL3F400
  
• Product Type: Molded Case Circuit Breaker Frame
  
• Configuration: Frame Only
  
• Frame Type: JL3
  
• Frame Identification: Type ET, 400 Ampere "JL" Frame
  
• Amperes: 400A
  
• Poles: 3
  
• AIC Rating at 240VAC: 42 kA
  
• AIC Rating at 480VAC: 30 kA
  
• AIC Rating at 600VAC: 22 kA
  
• Temperature Rating: 40°C
  
• Trip Unit: Not included
  
• Lug Terminals: Not included
  
• Width: 9.00 in.
  
• Height / Length: 11.00 in.
  
• Depth: 4.00 in.
  
• Overall Dimensions: 9.00 in. W × 11.00 in. L × 4.00 in. D
  
• Approximate Ship Weight: 20.00 lb.
  

Material Compliance and Certifications

No specific UL, CSA, IEC, RoHS, REACH, or other certification or material compliance information was provided for the JL3F400. Those qualifications should not be assumed. If a particular certification or standard is required for the installation, confirm it from the product markings or applicable equipment documentation.

Where It Works Best

The JL3F400 is intended for compatible existing and legacy electrical equipment that calls for a JL3, Type ET 400 Ampere "JL" frame with the corresponding physical and electrical requirements. Its published dimensions make it easier to check the available space and frame fit against the equipment already in service.

One detail deserves extra attention: this is the frame only. Before installation, confirm the required trip unit and lug terminals separately, as well as the three-pole configuration, system voltage, AIC requirement, dimensions, and overall compatibility with the existing equipment.