THJK436175WL - 175Amp Circuit Breaker

THJK436175WL - 175 Amp Circuit Breaker

The THJK436175WL is a 3-pole, 175-amp molded case circuit breaker designed for use in your commercial and industrial electrical distribution systems where dependable circuit protection is required. Built as part of the THJK4 Series, this breaker features a non-interchangeable thermal-magnetic trip unit with internal common-trip functionality, helping to protect connected equipment and conductors from overloads and short circuits. Its cable-in/cable-out lug-lug configuration includes both line-side and load-side lugs, simplifying installation in compatible switchboards, panelboards, and power distribution equipment.

Designed for applications requiring higher interrupting capacities, the THJK436175WL offers interrupting ratings of 25 kA at 600 VAC, 35 kA at 480 VAC, and 65 kA at 240 VAC. The breaker is also HACR-rated, making it suitable for use in heating, air conditioning, and refrigeration applications where code-compliant circuit protection is required. Built for long service life in demanding environments, this molded case circuit breaker provides a form, fit, and functional replacement solution for existing compatible electrical systems.

Key Features and Benefits

• 175 Amp Continuous Current Rating: 175 Amp continuous current rating.
• 3-Pole Configuration: 3-pole configuration for three-phase electrical systems.
• THJK4 Series Design: THJK4 series molded case circuit breaker.
• Thermal Magnetic Protection: The thermal magnetic trip unit provides overload and short-circuit protection.
• Internal Common Trip: The internal common trip mechanism helps disconnect all poles simultaneously during fault conditions.
• Cable-In / Cable-Out Configuration: Cable-in/cable-out (lug-lug) design for straightforward field wiring.
• Included Lugs: Includes both line-side and load-side lugs.
• HACR Rated: HACR rated for HVAC and refrigeration applications.
• Versatile Applications: Suitable for commercial, industrial, and power distribution installations.
• Durable Construction: Built for durability and long-term operation in electrical distribution systems.
  

Technical Specifications

• Part Number: THJK436175WL
  
• Series: THJK4
  
• Type: Molded Case Circuit Breaker
  
• Poles: 3
  
• Amperage Rating: 175 Amps
  
• Trip Unit: Non-Interchangeable Thermal Magnetic
  
• Trip Function: Internal Common Trip
  
• Configuration: Cable-In / Cable-Out (Lug-Lug)
  
• Included Accessories: Line-Side and Load-Side Lugs
  
• Interrupting Rating @ 240VAC: 65kA
  
• Interrupting Rating @ 480VAC: 35kA
  
• Interrupting Rating @ 600VAC: 25kA
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 10.13 in.
  • Width: 8.25 in.
  • Depth: 3.81 in.

Material Compliance and Certifications

• HACR Rated: HACR (Heating, Air Conditioning, and Refrigeration) Rated.
• Electrical Distribution Requirements: Manufactured for use in accordance with applicable electrical distribution and circuit protection requirements.
• Installation Compliance: Designed for installation in compatible equipment, following applicable electrical codes and manufacturer guidelines.
  

Where It Works Best

• The THJK436175WL is commonly used in commercial facilities, industrial plants, manufacturing operations, institutional buildings, and large HVAC installations where three-phase power distribution requires reliable overcurrent protection. Its lug-lug construction makes it well-suited for feeder circuits, distribution equipment, motor-related applications, and electrical systems operating at up to 600VAC. It is particularly useful where a 175-amp breaker with high interrupting capacity and thermal-magnetic protection is needed to maintain the safe operation of connected electrical equipment.