MA3300 - 300 Amp Circuit Breaker

MA3300 - 300 Amp Thermal-Magnetic Circuit Breaker

Get peace of mind with the MA3300 Thermal‑Magnetic Circuit Breaker—your go-to solution for dependable overcurrent protection in demanding industrial and commercial settings. This unit is built for maintenance and replacement scenarios, offering a user‑friendly design that won’t slow you down. Thanks to its interchangeable thermal‑magnetic trip mechanism, you can easily adjust how the breaker responds to overcurrent events—giving you control and flexibility on the job.

Key Features and Benefits

• Customizable Trip Module: Swap in the thermal‑magnetic trip unit that fits your needs—this adaptability makes maintenance quicker and smarter.
• Compact Footprint: Measures just 8.25″ W x 16.00″ L x 4.00″ D, so it fits tight spaces without sacrificing performance.
• Load‑Side Terminals Included: Designed for faster, cleaner installations—no extra accessories required.

Technical Specifications

• Poles: 3
• Current Rating: 300 A
• AIC Rating:
  • 22 kA @ 600 VAC
  • 30 kA @ 480 VAC
  • 42 kA @ 240 VAC
• Frame Type: MA
• Temperature Rating: 40 °C
• Dimensions:
  • Width: 8.25 inches
  • Length: 16.00 inches
  • Depth: 4.00 inches
• Shipping Weight: 50 lb

Material Compliance and Certifications

• Crafted to meet industry‑tough standards, the MA3300 is made for lasting performance. It has been tested and certified for use in both commercial buildings and industrial plants—delivering reliable compliance and long‑term safety.

Suitability

• Ideal for maintenance and replacement projects in manufacturing facilities, industrial sites, or large commercial installations—especially where dependable high-capacity electrical protection is a must. The unit’s flexibility and compact design help keep your systems running without interrupting your workflow.