MDL3500 - 500 Amp Circuit Breaker

MDL3500 - 500 Amp Circuit Breaker

The MDL3500 is a 500 amp, 3-pole MDL thermal-magnetic circuit breaker for electrical equipment that requires this specific combination of amperage, interrupting ratings, trip configuration, and physical size. It features an interchangeable trip unit, is 40°C rated and HACR-rated, and includes load terminals. If you're replacing an existing MDL breaker, checking the catalog number alongside amperage, poles, AIC rating, dimensions, trip configuration, and terminals is a practical way to narrow down the correct match. When all application requirements agree, the MDL3500 can be considered a form, fit, and functional replacement candidate. Its solid construction is built to last when selected, installed, and maintained correctly.

Key Features and Benefits

• 500 Amp Rating: Provides the specified 500A rating for compatible electrical equipment requiring an MDL breaker with this amperage.
• 3-Pole Design: The three-pole configuration is an essential specification to confirm when matching an existing breaker.
• Thermal-Magnetic Protection: The MDL3500 uses the specified thermal-magnetic circuit breaker design.
• Interchangeable Trip Unit: This breaker includes an interchangeable trip unit, which is important when checking replacement requirements.
• Load Terminals Included: This MDL3500 configuration includes load terminals. The supplied specifications do not identify line-side terminals as included, so do not assume them.
• 40°C Rated: The supplied 40°C rating gives another application-specific detail to check against the existing equipment.
• HACR Rated: The HACR rating is specifically identified for this circuit breaker.

Technical Specifications

• Part Number: MDL3500
  
• Product Type: Thermal-Magnetic Circuit Breaker
  
• Type: MDL
  
• Amperes: 500A
  
• Poles: 3
  
• A.I.C. Rating at 600VAC: 25kAIC
  
• A.I.C. Rating at 480VAC: 50kAIC
  
• A.I.C. Rating at 240VAC: 65kAIC
  
• Trip Type: Thermal-Magnetic
  
• Trip Unit: Interchangeable
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Included Terminals: Load terminals
  
• Height: 16.00 in.
  
• Width: 8.25 in.
  
• Depth: 4.06 in.
  
• Dimensions: 8.25"W x 16.00"H x 4.06"D
  
• Approx. Ship Weight: 35.00 lbs.
  

Material Compliance and Certifications

The available product information specifically identifies the MDL3500 as HACR rated. No other certification or material-compliance information was supplied for this exact part number. Accordingly, do not assume UL, IEC, RoHS, REACH, or other certification and compliance status based on similar breakers or neighboring MDL catalog numbers. Where a particular certification or material requirement is necessary for the application, verify it specifically for the MDL3500.

Where It Works Best

The MDL3500 500 amp circuit breaker is best evaluated for compatible existing and legacy electrical equipment that requires a 500A, 3-pole MDL thermal-magnetic circuit breaker with an interchangeable trip unit. In replacement work, match electrical ratings rather than relying on appearance or amperage alone.

Check the existing application for the required 500A rating, three-pole configuration, applicable voltage and AIC rating, 40°C rating, HACR requirement, trip-unit configuration, load-terminal arrangement, and physical dimensions. The supplied dimensions of 8.25"W x 16.00"H x 4.06"D provide a useful reference for evaluating physical fit.