KA36070 - 70 Amp Circuit Breaker

KA36070 - 70 Amp Circuit Breaker

When you’re specifying protection for a heavy-duty electrical distribution system, you want a circuit breaker that delivers rock-solid performance without over-engineering. The KA36070 is engineered for exactly that challenge. This 70-amp, 3-pole molded-case unit is purpose-built for I-Line panelboards, offering an outstanding interrupting capacity—22 kA at 600 VAC and 480 VAC, and 25 kA at 240 VAC—so it handles high-fault scenarios with confidence. With its thermal-magnetic trip mechanism and a 60 Hz rating at up to 40 °C ambient, it gives you both overload and short-circuit protection in one proven package. Whether you’re upgrading a manufacturing plant, a data-center bus arrangement, or a large commercial facility, the KA36070 stands ready.

Key Features and Benefits

• Thermal-Magnetic Trip Design: Combines overload detection (via thermal element) and instant short-circuit interruption (via magnetic element). That means you get versatile protection in one breaker without having to mix devices.
• High Interrupting Capacity: Rated for 22 kA at both 600 VAC and 480 VAC, plus 25 kA at 240 VAC. This gives you margin in demanding systems—reducing the risk of nuisance trips or failure when fault current is high.
• I-Line Panelboard Compatibility: Specifically designed for I-Line panelboards, making installation straightforward and fitting into many existing system designs without major rewiring or adapters.
• Reliable at Elevated Ambient: Rated for 40 °C ambient operating conditions, so it’s suited to industrial or commercial environments where heat loads are higher and performance must remain stable.
• Clear Form-Factor: With a dimension of 4.50″ W x 10.50″ L x 4.38″ D and a weight of 12 lb, it gives you a compact footprint without sacrificing durability or functionality.

Technical Specifications

• Poles: 3
  
• Amperes (Continuous): 70 A
  
• Interrupting Capacity:
  • 22 kA at 600 VAC
  • 22 kA at 480 VAC
  • 25 kA at 240 VAC
• Frame Type: KA
  
• Frequency: 60 Hz
  
• Operating Ambient: Up to 40 °C
  
• Dimensions:
  • Width: 4.50″
  • Length: 10.50″
  • Depth: 4.38″
• Weight: 12 lb
  

Material Compliance and Certifications

• Construction: The KA36070 is manufactured using high-quality molded case materials and robust contact components, ensuring long-term reliability in harsh conditions.
• Industry Standards: It meets applicable industry safety and performance standards for molded-case circuit breakers in commercial and industrial applications. Specifying this unit gives you peace of mind that the device is built to consistently protect your system rather than simply marking a box.

Where It Works Best

• This breaker is ideal for facilities with substantial load demands and potential fault-current exposure: manufacturing plants with heavy motor loads, data centers with large power buses, commercial buildings with centralised distribution systems, and upgrade projects where reliability is critical. If you’re retrofitting an I-Line panelboard or designing a new installation that needs a dependable 70-amp circuit breaker with strong interrupting capacity, the KA36070 is a smart choice.