HKA3150T - 150Amp Trip Unit

HKA3150T - 150Amp Trip Unit

The HKA3150T molded-case circuit breaker trip unit is a 150-amp replacement component for compatible HKA frame breaker systems. It’s commonly used in maintenance and repair work where the goal is to keep existing electrical equipment in service. Instead of replacing an entire breaker assembly, this trip unit lets you match the original setup and keep things running as intended.

Designed for three-pole HKA frames, the HKA3150T features a thermal-magnetic trip design with an adjustable magnetic range. In practical terms, that means it responds to both overload and short-circuit conditions while still giving flexibility within its rated settings.

Key Features and Benefits

• 150 Amp Rating: Matches systems that require a 150-amp trip unit
• HKA Frame Fit: Designed specifically for compatible HKA molded case breaker frames
• 3-Pole Design: Works with three-phase electrical systems
• Thermal Magnetic Operation: Responds to overloads and short circuits
• Adjustable Magnetic Range: 750–1500 A setting range for application flexibility
• Replacement Use: Helps maintain existing breaker assemblies without redesigning the system

Technical Specifications

• Catalog Number: HKA3150T
  
• Product Type: Molded Case Circuit Breaker Trip Unit
  
• Circuit Breaker Type: HKA
  
• Frame Type: J Frame
  
• Trip Type: T207
  
• Amperage Rating: 150 A
  
• Voltage Rating: 600 VAC
  
• Number of Poles: 3
  
• Trip Rating: 750–1500 A
  
• Dimensions:
  • Length/Depth: 7.4 in.
  • Height: 5.1 in.
  • Width: 5.2 in.
• Weight: 2.1 lbs.
  

Material Compliance and Certifications

The HKA3150T is UL Listed and intended for use in compatible molded case circuit breaker assemblies. Installation should always follow applicable electrical codes and equipment guidelines.

Where It Works Best

This trip unit is commonly used in commercial buildings, industrial facilities, and maintenance environments where HKA frame breakers are already in place. It’s a practical choice for service work where the goal is to keep existing electrical systems operating without changing the original design.