M50ASR363 - 100 Amp Panel Switch

M50ASR363 - 100 Amp Panel Switch

If you’re building or upgrading an electrical panel and need dependable three‑phase protection, the M50ASR363 is a solid, no‑nonsense solution. This fusible single‑unit panel switch is engineered to deliver safe, stable circuit protection for 100‑amp, three‑phase systems — and it does it with straightforward installation and flexible fuse compatibility. Whether you’re wiring a commercial control panel, a light industrial distribution board, or a heavy‑duty power panel, this unit is built to help you get the job done — reliably.

Key Features and Benefits

• 3‑Pole, 100 Amp — Balanced Three‑Phase Protection: Delivers consistent, even current distribution across all three phases, making it ideal for three-phase motors, HVAC, or other machinery.
• 600 V A.C. Rating — Ready for Heavy-Duty Systems: Rated for up to 600 volts AC, it’s suitable for a wide range of commercial and industrial applications.
• Bolt-In Type M50 Design — Simple, Secure Installation: The bolt-in configuration lets you mount the switch cleanly into standard panelboard cutouts. Installation is direct, stable, and maintenance‑friendly.
• Fusible Single-Unit — Accepts Class RK1 & RK5 Fuses: Use widely available RK1 or RK5 fuses for adjustable overcurrent protection. Fuse replacement is easy, giving you practical protection and convenient maintenance.
• Compact and Efficient for Panel Layouts: Its design uses panel space efficiently — a bonus when working on crowded distribution boards or retrofit jobs.

Technical Specifications

• Part Number: M50ASR363
• Poles: 3 (Three‑Phase)
• Amperage: 100 A
• Voltage: 600 V A.C. or less
• Unit Type: Fusible Single Unit, Type M50 Bolt-In Panel Switch
• Fuse Compatibility: Class RK1 & RK5 fuses
• Typical Use: Panelboard switch, three-phase power distribution
• Dimensions (approx.):
  • Height: 29.0 in
  • Width: 23.5 in
  • Ship weight: 23.5 lbs

Material Compliance and Certifications

• The M50ASR series is built following standard industry practices for fusible panel switches. While this product listing does not call out specific certification marks (such as UL or CSA), you are encouraged to consult manufacturer documentation or the datasheet for complete confirmation — its acceptance of Class RK‑series fuses, and standard Type M50 bolt-in form factor suggests compliance with widely recognized North American electrical panel standards.

Where It Works Best

• Commercial buildings — For service panels powering HVAC systems, lighting, or elevator controls where dependable 3-phase protection is required.
• Industrial settings — Manufacturing plants, workshops, or any facility with heavy‑duty motors and machinery needing 100‑amp protection.
• Retrofit or panel upgrades — Ideal when replacing older breakers or upgrading fuse‑based panels to modern, fuse‑compatible, bolt-in switches.
• Power distribution and control boards — When you need clear, easy-to-service circuit protection in control rooms or distribution panels.