Q1B270 - 70 Amp Circuit Breaker

Q1B270 - 70 Amp Circuit Breaker

Step up your electrical safety with the Q1B270 70A 2-pole circuit breaker—a high-performance solution engineered especially for maintenance and retrofit applications in residential and light commercial setups. This breaker offers dependable protection from both overloads and short circuits, so your wiring and connected devices stay secure. Its compact design (occupies only four panel spaces) makes it an ideal upgrade or replacement in existing panels without the hassle of reworking the layout.

Key Features & Benefits

• Thermal + Magnetic Trip Mechanism: Delivers dual protection by reacting to sustained overloads (thermal) and sudden current surges (magnetic), keeping your circuits safe under varied conditions.
• High Interrupting Capacity (10,000 AIC): Rated at 10 kA for 120/240 VAC service, it can handle substantial fault currents before breaking, to reduce risk to downstream appliances.
• Secure Bolt-On Mounting: The bolt-on design ensures a stable and vibration-resistant connection, minimizing loose contacts and improving reliability over time.
• Space-Efficient Footprint: At just four panel spaces wide, it fits neatly into many existing load centers—no major rework needed.
• Built for Durability: Constructed of high-strength, heat-resistant materials that tolerate day-to-day wear and environmental stress while maintaining consistent performance.

Technical Specifications

• Poles: 2
  
• Amperage: 70 A
  
• AIC (Interrupting Rating): 10,000 A at 120/240 VAC
  
• Frame Type: Q1B
  
• Dimensions:
  • Width: 1.50″
  • Length: 6.38″
  • Depth: 2.31″
• Weight: Approximately 3.50 lb
  
• Panel Spaces Required: 4 spaces
  

Material Compliance & Certifications

• UL 489 Safety Standards: This breaker meets UL 489 safety standards—a benchmark for circuit protection in North America.
• Construction: Its internal components are manufactured from quality-grade metals and insulating materials that resist wear, heat, and oxidation.
• Testing: Every unit is tested to ensure consistency, reliability, and conformance to industry safety demands.

Where It Works Best

• If your existing system requires a 70 A, 2-pole breaker and you’re looking to replace or maintain wiring circuits in homes or light commercial buildings, the Q1B270 is an excellent choice. It’s especially suited when you want to upgrade system safety without overhauling the whole panel. Whether you’re dealing with HVAC, sub-feeds, or general branch circuits, this breaker offers peace of mind and dependable performance.