KH36080 - 80 Amp Circuit Breaker

KH36080 - 80 Amp Circuit Breaker

The KH36080 80 Amp circuit breaker is a high-performance, industrial-grade molded-case protection device built for three-phase systems. It’s designed to deliver dependable overcurrent and short-circuit protection in rigorous environments, helping you keep motors, machinery, HVAC systems, and power distribution components safe and operating. With a compact footprint and thermal-magnetic trip mechanism, it integrates cleanly into standard panelboards or switchgear assemblies while providing fast, precise fault interruption.

Key Features & Benefits

• High interrupting capacity: Offers strong fault current handling to protect downstream equipment from damage.
• Three-pole configuration: Balanced protection across all three phases for stable, safe operation.
• Space-efficient design: Slim profile allows installation in dense panel layouts and standard enclosures.
• Quick-trip response: Reacts fast to overloads or short circuits, minimizing risk and downtime.
• Durable construction: Built from quality materials to resist mechanical stress, vibration, and thermal cycling.
• Thermal-magnetic trip technology: Combines thermal overload and instantaneous magnetic trip for dual protection.

Technical Specifications

• Poles: 3 (three-phase)
• Rated Current: 80 A
• Interrupting Rating (AIC):
  • 65,000 A at 240 VAC
  • 35,000 A at 480 VAC
  • 25,000 A at 600 VAC
• Frame Type: KH
• Dimensions:
  • Width: 4.50″
  • Length: 10.50″
  • Depth: 4.38″
• Weight: 12.00 lbs
• Frequency: 60 Hz
• Operating Temperature: Up to 40 °C ambient
• Type: Thermal-magnetic molded-case circuit breaker
• Panel Compatibility: Designed for I-Line style panelboards

Material Compliance & Certifications

• UL Certification: This circuit breaker bears UL certification, meaning it meets the rigorous safety and performance testing standards for molded-case circuit breakers under UL 489. (UL-listed molded-case breakers are tested as standalone protective devices rather than mere components.)
• RoHS Compliance: It is also RoHS compliant, ensuring that it limits the use of certain hazardous substances in its materials—a plus for environmentally conscious installations.

Where It Works Best (Suitability & Applications)

• The KH36080 is ideal for demanding three-phase electrical systems in industrial plants, commercial buildings, and heavy-duty mechanical installations. It serves as a primary protective device to safeguard power-hungry loads such as industrial motors, large HVAC systems, compressors, pumps, and production line machinery. The quick-trip behavior is a significant advantage in environments where minimizing operational downtime is critical. Because it fits standard panelboards, it can be retrofitted or used in new installations.