KA36250 - 250 Amp Circuit Breaker

KA36250 - 250 Amp Circuit Breaker

Meet the KA36250 3-Pole 250 Amp molded-case circuit breaker—a dependable protection device engineered for demanding industrial and commercial electrical systems. Built to handle heavy-duty loads, this breaker safeguards your equipment by interrupting fault currents fast and reliably without compromising the rest of your system. With high interrupting ratings and compatibility with I-Line panel setups, it’s an ideal solution when you need both performance and flexibility. Whether you're upgrading an existing distribution board or specifying new switchgear, the KA36250 delivers protection you can count on, day in and day out.

Key Features and Benefits

• Thermal-magnetic trip mechanism: Combines overload and instantaneous fault protection in one device, reducing the risk of system damage or downtime.
• Exceptional interrupting capacity: Handles 22 kAIC at 600 V and 480 V, and 25 kAIC at 240 V—ideal for high-stress circuits.
• I-Line panelboard compatible: Fits directly into standard I-Line panels for easier installation and retrofit capability.
• Stable in higher ambient temperatures: Rated for sustained operation up to 40 °C, making it suitable for hot industrial environments.
• Compact form factor: With dimensions of 4.50″ × 10.50″ × 4.38″, it offers a balance between capability and space efficiency.
• Solid reliability over time: Constructed from durable molded insulation materials for long service life and consistent performance.

Technical Specifications

• Poles: 3
  
• Rated Ampere: 250 A
  
• Interrupting Capacity:
  • 22 kA @ 600 VAC
  • 22 kA @ 480 VAC
  • 25 kA @ 240 VAC
• Frequency: 60 Hz
  
• Operating Ambient: 40 °C
  
• Frame Type: KA
  
• Dimensions:
  • Width: 4.50 inches
  • Length: 10.50 inches
  • Depth: 4.38 inches
• Weight: 12 lb
  

Material Compliance and Certifications

• Construction: Built with flame-resistant molded-case housing and insulation that meets or exceeds industry safety standards.
• Standards Compliance: Designed to comply with relevant molded-case circuit breaker standards (such as UL 489) and applicable electrical codes for industrial distribution protection.
• Marking and Certification: Labeling adheres to recognized code authority guidance for MCCBs.

Where It Works Best (Suitability / Use Cases)

• Large industrial plants & manufacturing lines: Ideal as a main or feeder breaker in heavy-duty systems where fault currents can spike suddenly.
• Data centers & mission-critical facilities: Offers dependable protection so backups, servers, and electrical loads stay safe from overloads or short circuits.
• Commercial complexes & high-rise buildings: Suitable for distribution panels serving large HVAC, elevator, or power systems.
• Renovations or retrofits: Because it’s I-Line panel compatible, it works well in upgrading or expanding older switchgear to higher capacity without full panel replacement.
• Environments with warm ambient conditions: Rated to operate reliably even in hotter zones up to 40 °C.