HK3B100 - 1000Amp Circuit Breaker

HK3B100 - 1000Amp Circuit Breaker

The HK3B100 molded-case circuit breaker is a 3-pole, 1000-amp electrical protection device designed for use in compatible HK3-frame applications. This breaker is commonly used in commercial and industrial power distribution systems where maintaining your existing electrical configuration and matching established equipment specifications are important. Featuring a Type ET design within the HK frame family, the HK3B100 is intended for applications requiring a high ampere rating while preserving the original form, fit, and function of the installed system.

Key Features and Benefits

• 1000 Amp Rating: Designed for electrical systems requiring a 1000-amp molded case circuit breaker.
• 3-Pole Configuration: Supports compatible three-phase electrical applications requiring coordinated circuit protection.
• HK3 Frame Design: Intended for use in systems that specify HK3 frame circuit breakers for replacement and maintenance needs.
• Type ET Configuration: Designed as a Type ET 1200-ampere HK frame circuit breaker application.
• 40°C Application Rating: Designed for applications operating at 40 °C.
• Replacement-Focused Design: Helps maintain existing electrical systems where matching equipment specifications and compatibility are important.

Technical Specifications

• Part Number: HK3B100
  
• Type: HK3
  
• Style: Molded Case Circuit Breaker (MCCB)
  
• Frame Type: HK Frame
  
• Amperes: 1000 A
  
• Poles: 3
  
• Approximate Shipping Weight: 55.00 lbs.
  
• Dimensions: 9.00"W x 15.50"L x 4.00"D
  
• Height: 15.50 in.
  
• Width: 9.0 in.
  
• Depth: 4.0 in.
  
• A.I.C. Ratings:
  • 42kA @ 600VAC
  • 50kA @ 480VAC
  • 65kA @ 240VAC
• Temperature Rating: 40°C
  
• Frame Rating: 1200 Ampere HK Frame
  
• Trip Unit Type: ET
  

Material Compliance and Certifications

The HK3B100 circuit breaker should be installed in accordance with the requirements of the electrical equipment it is used with and all applicable electrical codes and standards. Voltage ratings, interrupt ratings, and system compatibility should be verified before installation. Certification and compliance details should be confirmed through product markings and available manufacturer documentation.

Where It Works Best

The HK3B100 is well suited for industrial facilities, commercial buildings, and electrical maintenance applications where HK3 frame-compatible equipment is already installed. It works best in situations where replacing an existing molded case circuit breaker while maintaining the original power distribution design is important. Electricians, contractors, and facility maintenance teams can use this type of breaker to support ongoing service needs in established switchgear and electrical distribution systems where proper fit, compatibility, and application requirements must be maintained.