LHL36175 - 175 Amp Circuit Breaker

LHL36175 - 175 Amp Circuit Breaker

If you’re looking to replace the LHL36175 breaker, it’s not just about finding another 175A breaker. This specific breaker is a 175A, 3-pole LH molded-case circuit breaker featuring thermal-magnetic protection in a unit-mount design. What sets it apart are the lugs on both the line and load sides, with the AL400LA terminal configuration.

Key Features and Benefits

• 175A, 3-pole molded case circuit breaker for compatible electrical distribution equipment
• Unit-mount design, an important detail when matching an existing breaker installation
• Thermal-magnetic trip technology for overload and short-circuit protection
• 875A magnetic hold current
• 1,750A magnetic tripping current
• Lugs on both line and load sides
• AL400LA terminal configuration
• Specified terminal tightening torque of 115.06 lbf-in (13 N·m)
• HACR rated for applicable heating, air-conditioning, and refrigeration applications
• Suited to form, fit, and functional replacement work where the existing equipment requires the LHL36175 configuration

Technical Specifications

• Catalog Number: LHL36175
  
• Product Type: Molded Case Circuit Breaker
  
• Frame / Series: LH / LHL
  
• Rated Current: 175A
  
• Number of Poles: 3
  
• Trip Unit Technology: Thermal-Magnetic
  
• Breaking Capacity Code: H
  
• Interrupting Rating at 600VAC: 25 kA
  
• Interrupting Rating at 250VDC: 50 kA
  
• Magnetic Hold Current: 875A
  
• Magnetic Tripping Current: 1,750A
  
• Mounting Mode: Unit Mount
  
• Line-Side Connection: Lugs
  
• Load-Side Connection: Lugs
  
• Terminal Identifier: AL400LA
  
• Terminal Tightening Torque: 115.06 lbf-in (13 N·m)
  
• Specified Conductor Range: 1 AWG–600 kcmil and 1 AWG–250 kcmil, depending on the applicable terminal/conductor configuration
  
• Height: 11 in. (279.4 mm)
  
• Width: 6 in. (152.4 mm)
  
• Depth: 5.84 in. (148.34 mm)
  
• Circuit Breaker Application: HACR Rated
  
• GTIN: 00785901749639
  

Material Compliance and Certifications

The supplied manufacturer specifications identify the LHL36175 as UL Listed, CSA certified, and IEC certified. These certifications provide useful reference points when checking the breaker against the requirements of an existing electrical installation.

Where It Works Best

The LHL36175 175A 3-pole circuit breaker is best suited for maintenance and replacement work on existing or legacy electrical distribution equipment that requires this unit-mount configuration.

A quick compatibility check? Look at the connections early. The LHL36175 has lugs on both the line and load sides, uses the AL400LA terminal configuration, and is unit-mounted. Its physical footprint is about 6 inches wide, 11 inches high, and 5.84 inches deep. If those mechanical details don't correspond with the existing equipment, matching the 175A rating alone isn't enough.