QS2150 - 150Amp Circuit Breaker

QS2150 - 150Amp Circuit Breaker

When your electrical system demands dependable protection for higher-capacity circuits, the QS2150 2-Pole 150 Amp Thermal Magnetic Circuit Breaker delivers the performance professionals expect. Designed for 120/240VAC electrical distribution systems, this Type QS circuit breaker helps protect equipment and wiring from overloads and short circuits before they become costly problems. Whether you're replacing an existing breaker during maintenance or completing a new installation, the QS2150 offers the reliability needed for commercial, industrial, and heavy-duty residential applications.

Its thermal magnetic trip mechanism responds to both sustained overload conditions and sudden fault currents, providing an added layer of protection for valuable electrical equipment. With a 10kA interrupting rating at 120/240VAC, a 40°C ambient rating, and HACR certification, this breaker is well suited for demanding environments, including qualifying HVAC and refrigeration systems. The wide #3 AWG to 300 kcmil copper or aluminum wire range also gives installers greater flexibility when working with larger conductors.

Whether you're maintaining a facility, upgrading an electrical distribution panel, or replacing a worn breaker, the QS2150 is built to help keep your electrical system operating safely and efficiently while minimizing unnecessary downtime.

Key Features and Benefits

• 150 Amp Current Rating: 150 Amp current rating for protecting high-capacity electrical circuits.
• 2-Pole Design: 2-pole design for 120/240VAC electrical systems.
• Thermal Magnetic Trip Technology: Thermal magnetic trip technology provides dependable protection against overloads and short circuits.
• 10kA Interrupting Capacity: 10kA interrupting capacity at 120/240VAC helps safely clear fault conditions.
• HACR Rated: HACR rated for qualifying heating, air conditioning, and refrigeration applications.
• 40°C Ambient Rating: Rated for operation in 40°C ambient environments.
• Wide Conductor Compatibility: Accepts #3 AWG through 300 kcmil copper or aluminum conductors for installation flexibility.
• Compact Footprint: Compact footprint simplifies installation in compatible electrical panels and switchboards.
• Ideal Replacement Option: An excellent replacement option for maintenance, repair, and electrical system upgrades.
  

Technical Specifications

• Part Number: QS2150
  
• Type: QS
  
• Poles: 2
  
• Amperage: 150 Amps
  
• Voltage: 120/240VAC
  
• Interrupting Capacity: 10kA @ 120/240VAC
  
• Frequency: 60Hz
  
• Trip Type: Thermal Magnetic
  
• HACR Rated: Yes
  
• Ambient Rating: 40°C
  
• Wire Range: #3 AWG–300 kcmil Copper (CU) or Aluminum (AL)
  
• Dimensions:
  • Height: 7.88 in.
  • Width: 2.13 in.
  • Depth: 3.00 in.

Material Compliance and Certifications

• 60Hz AC Systems: Designed for 60Hz AC electrical systems.
• HACR Type Rated: HACR Type rated for qualifying HVAC and refrigeration applications.
• Conductor Compatibility: Compatible with both copper (CU) and aluminum (AL) conductors within the specified wire range.
• Industry Standards: Manufactured to meet applicable industry standards for molded case thermal magnetic circuit breakers.
  

Where It Works Best

• The QS2150 is a great choice for protecting commercial buildings, industrial facilities, manufacturing plants, electrical distribution equipment, HVAC systems, service entrances, large branch circuits, and feeder applications requiring a 150 Amp, 2-pole circuit breaker. It's particularly well suited for electrical contractors, maintenance professionals, and facility managers looking for dependable circuit protection that helps maximize system uptime and supports long-term electrical reliability.