EHC3090 - 90Amp Circuit Breaker

EHC3090 - 90 Amp Circuit Breaker

If you’re working with an existing EHC panel and need a breaker that fits without complications, the EHC3090 90 amp 3-pole circuit breaker is a practical choice. It’s designed to match the original setup, so you can replace a worn or faulty unit without reworking your system. The thermal-magnetic design handles everyday overloads while still reacting quickly to short circuits, helping keep your equipment protected and your operation on track. This breaker comes with a fixed (non-interchangeable) trip unit, which means the protection level is set and consistent—no adjustments needed. It’s rated for 40°C environments and includes load terminals, so installation is more straightforward. Whether you’re maintaining a commercial facility or managing industrial equipment, this breaker does exactly what it’s supposed to do: fit right, function properly, and support the system it’s part of. Like many breakers built for these applications, it’s made to last and handle regular use over time.

Key Features and Benefits

• 90 amp rating for common commercial and industrial applications
• 3-pole design for use in three-phase systems
• Thermal-magnetic protection for both overloads and short circuits
• Fixed trip unit keeps protection settings consistent
• Includes load terminals for easier installation
• Designed to fit EHC frame panelboards and equipment
• Rated for 40°C ambient conditions
• Built to last and support ongoing system use

Technical Specifications

• Part Number: EHC3090
• Amperes: 90A
• Poles: 3
• Frame Type: EHC
• Trip Type: Thermal-Magnetic (non-interchangeable)
• Interrupting Capacity:
  • 14kA @ 480VAC
  • 18kA @ 240VAC
• Temperature Rating: 40°C
• Included: Load terminals
• Dimensions / Shipping Weight:
  • Height: 6.0 inches
  • Weight: 4.13 lbs

Material Compliance and Certifications

• Built to meet standard industry requirements for molded case circuit breakers
• Suitable for use in systems aligned with UL-listed equipment
• Supports installation practices following NEC (National Electrical Code)
• Materials selected for safe operation within rated conditions

Where It Works Best

The EHC3090 is commonly used in commercial buildings, industrial sites, and institutional facilities where older EHC equipment is still in service. It’s a good fit for panelboards and distribution systems that require a 90 amp, 3-pole breaker with specific interrupting ratings. When the goal is to keep an existing system running as designed, this breaker provides the right fit without added complexity.