QCB70 - 70 Amp Circuit Breaker

QCB70 - 70 Amp Circuit Breaker

The QCB70 is a 70 amp, 2-pole circuit breaker used in 120/240 volt panels. It’s a straightforward breaker designed to do one job—protect the circuit when something goes wrong. With a 10,000 AIC rating, it’s suitable for handling fault conditions found in many residential and light commercial setups. The QCB frame keeps the size manageable, which helps when you’re working inside a crowded panel. There’s nothing fancy here, just a solid breaker that’s commonly used when a dependable 70 amp option is needed.

Key Features and Benefits

• 70 Amp Rating – Commonly used for larger branch circuits and equipment loads.
• 2 Poles – Supports 240V circuits or two tied 120V legs.
• 10,000 AIC – Rated to interrupt fault currents in standard service conditions.
• Compact Frame – Helps save space inside the panel.
• Consistent Operation – Designed for everyday electrical use without constant tripping.

Technical Specifications

• Number of Poles: 2
• Rated Current: 70 Amps
• Rated Voltage: 120/240 VAC
• Interrupting Rating: 10,000 AIC
• Frame Type: QCB
• Dimensions:
  • Width: 1.50 in
  • Length: 4.81 in
  • Depth: 2.50 in
• Weight: 2.25 lbs

Material Compliance and Certifications

• This breaker is built using materials that meet standard electrical safety requirements. When installed correctly and used in approved applications, it supports safe and reliable circuit protection.

Where It Works Best

• The QCB70 is typically used in sub-panels, HVAC equipment, shop tools, and larger appliances that run on 240 volts. It’s a practical choice for residential projects and light commercial installations where a 70 amp, 2-pole breaker is required.