NM632350 - 350Amp Circuit Breaker

NM632350 - 350Amp Circuit Breaker

If you're looking for an NM632350 circuit breaker, first check whether the electrical ratings and physical configuration match your existing equipment. This is an NM type, 350-amp, 3-pole molded case circuit breaker with a thermal-magnetic trip and bolt-on mounting. It also comes with load-side lug terminals.

The interrupting rating varies with system voltage: 22 kAIC at 600VAC, 30 kAIC at 480VAC, and 42 kAIC at 240VAC. The breaker is rated at 40°C and measures 15.5 inches high, 8.19 inches wide, and 4.13 inches deep.

For anyone maintaining older electrical equipment, these details matter most. You don't choose a replacement breaker by amperage alone. Pole count, mounting style, dimensions, voltage, interrupting rating, and terminal configuration must match the application. When those requirements call for an NM632350, this breaker provides the form, fit, and function needed for a compatible installation. Its molded-case construction is also built to last with proper use and maintenance.

Key Features and Benefits

• 350-amp rating for applications requiring this specific current rating.
• 3-pole configuration for compatible three-phase electrical systems.
• Thermal-magnetic trip responds to sustained overcurrent and fault-current conditions.
• Bolt-on mounting for equipment built around this breaker configuration.
• 22k AIC at 600VAC, 30k AIC at 480VAC, and 42k AIC at 240VAC.
• Load-side lug terminals included, an important detail when checking the breaker against an existing installation.
• 40°C rating as specified for this model.
• 15.5" x 8.19" x 4.13" dimensions make physical fit easier to verify before installation.

Technical Specifications

• Part Number: NM632350
  
• Type: NM
  
• Product Type: Molded Case Circuit Breaker
  
• Amperage: 350A
  
• Poles: 3
  
• Trip Type: Thermal Magnetic
  
• Mounting: Bolt-On
  
• AIC Rating at 600VAC: 22k
  
• AIC Rating at 480VAC: 30k
  
• AIC Rating at 240VAC: 42k
  
• Temperature Rating: 40°C
  
• Height: 15.5 in.
  
• Width: 8.19 in.
  
• Depth: 4.13 in.
• Ship Weight: 38.00 lbs.
  
• Terminals: Load-Side Lug Terminals Included
  

Material Compliance and Certifications

• Specific certification and material-compliance information was not included with the available specifications for the NM632350. If your application requires a particular UL listing, CSA certification, RoHS status, or another compliance designation, check the markings on the breaker and the applicable manufacturer documentation. This avoids assumptions about certifications not confirmed for this product.

Where It Works Best

• The NM632350 makes the most sense in maintenance and replacement applications where existing electrical equipment calls for an NM-type breaker with these specifications. That may include compatible legacy electrical distribution equipment, switchgear, and other installations where keeping the original breaker configuration matters.
• Before using it as a replacement, carefully compare the existing breaker and equipment requirements. Check the 350 amp rating, three poles, NM type, bolt-on mounting, thermal-magnetic trip, dimensions, terminal arrangement, system voltage, and required AIC rating.
• That's really the key with a breaker like the NM632350. You aren't looking for something simply because it says "350 amps" on the label. You're looking for the right electrical ratings and the right physical configuration for the equipment already in place.