MDA150 - 150 Amp Circuit Breaker

MDA150 - 150 Amp Circuit Breaker

The MDA150 Thermal Magnetic Circuit Breaker delivers dependable, long‑lasting performance to protect and manage high-demand residential electrical systems. With a strong MD‑A frame and a 150 amp capacity, this two‑pole breaker provides reliable protection, combining overload safeguards and short-circuit response to help keep your electrical circuits safe and stable. Its plug‑in design and parallel wire entry to the lug terminals make installation quick and versatile — ideal whether you’re upgrading an existing panel or wiring a new one. The compact size saves valuable space inside your electrical panel while ensuring efficient power delivery for large circuits such as HVAC systems, subpanels, or whole-home applications.

Key Features and Benefits

• Thermal-Magnetic Protection: Uses thermal sensing for overload protection and magnetic actuation for short-circuit protection, providing balanced protection for diverse fault conditions.
• High Fault Current Handling: 10,000 A.I.C. interrupting capacity ensures the breaker can safely manage high fault currents, enhancing safety and reducing risk of damage.
• Easy Installation: Plug-in design simplifies mounting and connections, saving time and effort for electricians and installers.
• Space-Saving Form Factor: A slim profile that fits neatly into standard residential panels without compromising performance.
• Flexible Wiring Options: Parallel wire entry to the lug terminals accommodates various wiring setups, offering versatility in installation.

Technical Specifications

• Frame Type: MD‑A
  
• Poles: 2
  
• Rated Amperage: 150 A
  
• Voltage: 120/240 VAC
  
• Interrupting Capacity: 10k A.I.C.
  
• Dimensions:
  • Width: 2.00 inches
  • Length: 6.31 inches
  • Depth: 3.25 inches
• Ship Weight: Approximately 4.5 lbs
  

Material Compliance and Certifications

• Safety Standards: This circuit breaker is built from high-quality materials and engineered to meet rigorous safety and performance standards. It’s manufactured under strict quality controls to ensure consistent performance under varied operating conditions. The MDA150 complies with recognized UL safety standards for residential circuit protection, giving you confidence in its dependability and longevity.

Where It Works Best

• The MDA150 is especially well-suited for main service panels in homes, large subpanels, HVAC circuits, or other high-demand residential installations. Whether you’re a homeowner upgrading your panel, an electrician installing a brand-new system, or a contractor wiring a large residential build, this breaker is ideal for applications that require strong, reliable circuit protection. Its mix of capacity, safety features, and ease of installation makes it a wise choice for any residential electrical setup requiring 150‑amp protection.