QC3090H - 90 Amp Circuit Breaker

QC3090H - 90 Amp Circuit Breaker

The QC3090H is a 3-pole, 90-amp Type QC thermal magnetic circuit breaker designed to provide dependable overcurrent and short-circuit protection for commercial, industrial, and heavy-duty electrical distribution systems. Engineered with cable-in/cable-out connections and a Quicklag® design, this breaker helps simplify installation while delivering consistent circuit protection under demanding operating conditions. Rated for 10kA interrupting capacity at 240VAC and calibrated for 40°C operation, the QC3090H is well-suited for applications where reliable performance and equipment protection are essential. Its HACR rating also makes it an excellent choice for qualifying heating, air conditioning, and refrigeration equipment, giving maintenance professionals and electrical contractors added flexibility across a wide range of installations. Whether you're replacing an existing breaker during routine maintenance or sourcing a compatible unit for an electrical distribution system, the QC3090H offers the dependable protection expected from a thermal magnetic circuit breaker. Its combination of 90-amp capacity, three-pole configuration, and proven thermal magnetic trip technology helps safeguard connected equipment from overloads and short circuits while supporting long-term system reliability.

Key Features and Benefits

• 90 Amp Rating: Ideal for protecting higher-capacity branch circuits and distribution equipment.
• 3-Pole Configuration: Designed for three-phase electrical systems requiring coordinated circuit protection.
• Type QC Design: Compatible with electrical systems designed for Type QC circuit breakers.
• Thermal Magnetic Trip Unit: Delivers inverse-time overload protection along with instantaneous short-circuit response.
• 10kA Interrupting Capacity at 240VAC: Provides dependable fault interruption for applicable electrical systems.
• Quicklag® Construction: Designed to support efficient installation and dependable electrical performance.
• Cable-In/Cable-Out Connections: Simplifies wiring for compatible installations.
• HACR Rated: Suitable for qualifying heating, air conditioning, and refrigeration applications.
• 40°C Calibration: Engineered for reliable operation in environments with elevated ambient temperatures.
  

Technical Specifications

• Part Number: QC3090H
  
• Type: QC
  
• Poles: 3
  
• Amperage: 90A
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity (A.I.C.): 10kA @ 240VAC
  
• Trip Type: Thermal Magnetic
  
• Connection Type: Cable-In / Cable-Out
  
• HACR Rated: Yes
  
• Operating Temperature Calibration: 40°C
  
• Dimensions:
  • Height: 3.75 in.
  • Width: 3.0 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• HACR Rated: HACR Rated for qualifying heating, air conditioning, and refrigeration applications.
• Thermal Magnetic Overcurrent Protection: Thermal magnetic overcurrent protection designed to help safeguard electrical equipment from overload and short-circuit conditions.
• Compatible Electrical Distribution Systems: Manufactured for use in compatible electrical distribution systems meeting applicable installation requirements.
• Installation Requirements: Installation should always be performed in accordance with local electrical codes and manufacturer compatibility requirements.
  

Where It Works Best

• The QC3090H is an excellent choice for commercial buildings, industrial facilities, electrical distribution panels, manufacturing equipment, HVAC systems, and three-phase power applications requiring a 90-amp, 3-pole Type QC circuit breaker. Its thermal magnetic protection and HACR rating make it especially well-suited for protecting motors, compressors, panelboards, and other critical electrical equipment where dependable overcurrent protection is essential for maintaining safe and reliable operation.