THKMA826500WL - 500Amp Circuit Breaker

THKMA826500WL - 500 Amp Circuit Breaker

The THKMA826500WL is a 500 Amp, 2-pole molded case circuit breaker designed for use in your commercial and industrial electrical distribution systems. Featuring a thermal magnetic trip unit with internal common trip, this breaker helps you to protect circuits against overloads and short-circuit conditions while allowing all poles to trip together when required. This unit is configured as a cable-in/cable-out (lug-lug) breaker and comes with both line-side and load-side lugs included. Its interchangeable trip unit design makes it suitable for applications where maintaining compatibility with existing equipment is important. Built for demanding electrical environments, the THKMA826500WL is commonly found in switchgear, distribution equipment, HVAC systems, and other high-amperage installations that require dependable circuit protection. With interrupting ratings of 25kA at 600VAC, 35kA at 480VAC, and 65kA at 240VAC, this breaker is designed to meet the requirements of a wide range of power distribution applications. Its straightforward design, proven operating mechanism, and durable construction have made this style of breaker a common choice in many commercial and industrial facilities.

Key Features and Benefits

• 500 Amp current rating
• 2-pole configuration
• THKM8 frame type
• Thermal magnetic trip unit
• Internal common trip design
• Interchangeable trip unit
• Cable-in/cable-out (lug-lug) configuration
• Includes line-side and load-side lugs
• HACR rated
• Designed for commercial and industrial power distribution systems
• Suitable as a form, fit, and function replacement in compatible equipment

Technical Specifications

• Part Number: THKMA826500WL
  
• Type: THKM8
  
• Amperage: 500A
  
• Poles: 2
  
• Trip Unit: Thermal Magnetic
  
• Trip Style: Internal Common Trip
  
• Connection: Lug-Lug (Cable-In/Cable-Out)
  
• Included Lugs: Line and Load Side
  
• A.I.C. Rating: 25kA @ 600VAC
  
• A.I.C. Rating: 35kA @ 480VAC
  
• A.I.C. Rating: 65kA @ 240VAC
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 15.5 in.
  • Width: 8.25 in.
  • Depth: 5.5 in.

Material Compliance and Certifications

• HACR rated
• Intended for use in commercial and industrial electrical systems
• Install and maintain in accordance with applicable electrical codes and manufacturer requirements
• Verify equipment compatibility before installation

Where It Works Best

• The THKMA826500WL is often used in commercial buildings, manufacturing facilities, industrial plants, mechanical systems, HVAC equipment, and power distribution applications requiring a 500 Amp, 2-pole circuit breaker. It is particularly useful when maintaining or servicing existing equipment that requires a compatible THKM8 molded case breaker with thermal magnetic protection and lug-lug connections.