M50ASR366 - 600 Amp Panel Switch

M50ASR366 - 600 Amp Panel Switch

Get reliable power distribution with the M50ASR366, a heavy‑duty 3‑pole panel switch engineered to handle demanding electrical loads. With a 600‑ampere capacity and compatibility with 600 V A.C. systems, this breaker brings serious protective power to commercial or industrial electrical panels. The bolt‑in design makes installation straightforward, while the acceptance of Class RK1 and RK5 fuses gives you flexible, interchangeable protection. Whether you’re upgrading an existing panel or building a new one, M50ASR366 ensures dependable performance under load — without overcomplicating your setup.

Key Features and Benefits

• High‑capacity 600A rating: Designed to manage heavy electrical loads — ideal for industrial motors, HVAC systems, or large machinery.
• 3‑Pole design: Provides balanced power distribution across three phases for three-phase systems, ensuring smooth performance and minimizing the risk of imbalance.
• Bolt‑in M50 frame: Securely mounts into standard M50 panels for a clean, organized installation that integrates neatly with existing setups.
• Fusible, single-unit protection: Works with Class RK1 and RK5 fuses — offering the flexibility to tailor circuit protection to your exact needs.
• Versatile 600 V A.C. compatibility: Suitable for a wide range of applications and standard commercial/industrial voltage systems.
• Durable construction with manageable size and weight: At roughly 15 in. in height and 23.5 lbs, it’s compact enough for retrofit jobs while still furnishing ample current capacity.

Technical Specifications

• Part Number: M50ASR366
  
• Poles: 3‑Pole
  
• Amperage: 600 A
  
• Voltage (Max): 600 V A.C.
  
• Frame Type: M50
  
• Unit Type: Fusible, Single Unit, Bolt‑in Type Panel Switch
  
• Fuse Types Accepted: Class RK1 & RK5
  
• Approx. Height: 15.0 in.
  
• Ship Weight: 23.5 lb
  

Material Compliance and Certifications

• Industry Standards: This breaker is built to meet common industrial safety and electrical standards. It accepts industry-standard fusible types (Class RK1 and RK5), ensuring compliance with typical industrial electrical code requirements.
• Panel Compatibility: Its M50 frame configuration aligns with panel specifications widely used in commercial and heavy-duty installations — guaranteeing compatibility and safety when installed per standard wiring practices.

Where It Works Best

• The M50ASR366 is a great fit for commercial buildings, manufacturing facilities, large workshop environments, or any situation requiring distribution of heavy three-phase loads. It’s especially useful for powering large HVAC systems, heavy machinery, industrial motors, or large-scale lighting and equipment circuits. Whether you’re doing a panel upgrade, constructing a new distribution panel, or replacing an older unit, this breaker is built for dependable heavy-duty use when reliability matters most.