EHB34090 - 90 Amp Circuit Breaker

EHB34090 - 90 Amp Circuit Breaker

When you’re working with an existing electrical system, the last thing you want is guesswork. The EHB34090 bolt-on circuit breaker is built to fit right into compatible EHB-4 frame panelboards, giving you a straightforward solution for restoring or maintaining proper circuit protection. With a 90-amp rating and 3-pole configuration, it’s well-suited for handling typical three-phase loads found in commercial and industrial environments. This breaker is designed to manage overcurrent conditions without complicating your setup. Its interrupting capacity—14kA at 480VAC and 65kA at 240VAC—helps address fault conditions effectively, while the bolt-on mounting keeps installation secure and stable. If you’re maintaining an older system or replacing a worn unit, this model keeps things simple by matching the original form and function. And like equipment from this class, it’s built to last in demanding conditions where consistency matters.

Key Features and Benefits

• Reliable 3-Pole Design – Ideal for three-phase power distribution systems
• 90 Amp Capacity – Handles moderate electrical loads with steady protection
• Bolt-On Mounting Style – Provides a firm, secure connection to compatible panelboards
• Solid Interrupting Ratings –
  • 14kA @ 480VAC
  • 65kA @ 240VAC
• EHB-4 Frame Fit – Designed to match existing equipment for proper installation
• Made for Longevity – Built to last in everyday commercial and industrial use

Technical Specifications

• Part Number: EHB34090
  
• Poles: 3
  
• Amperage: 90A
  
• Voltage Rating: Up to 480VAC
  
• Interrupting Capacity:
  • 14kA @ 480VAC
  • 65kA @ 240VAC
• Frame Type: EHB-4
  
• Mounting Type: Bolt-On
  
• Dimensions (Approx.): 4.25” height
  
• Weight: 3.5 lbs
  

Material Compliance and Certifications

• Manufactured to meet applicable UL standards for molded case circuit breakers
• Designed for use in accordance with North American electrical codes and safety practices
• Suitable for installation in compliant commercial and industrial electrical systems

Where It Works Best

You’ll typically find the EHB34090 in commercial buildings, manufacturing facilities, and institutional settings where three-phase power is standard. It’s a practical choice for panelboards supporting HVAC systems, lighting circuits, and equipment loads. If you’re servicing or maintaining an existing EHB-4 setup, this breaker helps keep everything operating as intended without compatibility issues.