E3090 - 90Amp Circuit Breaker

E3090 - 90Amp Circuit Breaker

Finding the right replacement circuit breaker often comes down to matching the original specifications as closely as possible. The E3090 90 Amp 3-Pole Circuit Breaker is a Type E thermal-magnetic circuit breaker designed for electrical systems that require 90-amp overcurrent protection, a 3-pole configuration, and a 10kA interrupting rating at 240VAC. Whether you're performing routine maintenance, repairing existing equipment, or replacing a failed breaker, this unit is designed to provide the form, fit, and function required for compatible installations.

The E3090 uses a thermal-magnetic trip mechanism to respond to a range of electrical fault conditions. The thermal element helps protect against prolonged overloads, while the magnetic element reacts quickly to short-circuit events. Because it features a non-interchangeable trip unit, the breaker maintains the protection characteristics originally intended for the equipment. Rated for operation in environments up to 40°C (104°F) and supplied with load terminals, the E3090 is commonly found in commercial and industrial power distribution systems where matching electrical ratings and physical configuration is critical. Built to last and designed for long-term service within its published specifications, this breaker remains a practical choice for maintaining existing electrical infrastructure.

Key Features and Benefits

• 90 Amp current rating for compatible electrical distribution systems
• 3-pole design suitable for three-phase applications
• Thermal-magnetic trip mechanism provides overload and short-circuit protection
• Type E circuit breaker configuration
• Non-interchangeable trip unit helps maintain original protection characteristics
• 10kA interrupting capacity at 240VAC
• Rated for operation in ambient temperatures up to 40°C (104°F)
• Includes load terminals for installation in compatible equipment
• Designed as a form, fit, and functional replacement solution
• Built for long-term service when operated within published ratings

Technical Specifications

• Part Number: E3090
  
• Type: E
  
• Amperes: 90A
  
• Poles: 3
  
• Voltage Rating: 240VAC
  
• A.I.C. Rating: 10kA @ 240VAC
  
• Trip Unit: Non-Interchangeable
  
• Trip Type: Thermal-Magnetic
  
• Temperature Rating: 40°C (104°F)
  
• Width: 4.13 in.
  
• Height: 6.00 in.
  
• Depth: 3.31 in.
  
• Dimensions: 4.13"W x 6.00"H x 3.31"D
  
• Approximate Shipping Weight: 4.50 lbs
  
• Included Accessories: Load Terminals
  

Material Compliance and Certifications

• Designed for use within its published electrical ratings and specifications
• Thermal-magnetic protection mechanism for overload and short-circuit response
• Rated for 240VAC applications with a 10kA interrupting capacity
• Suitable for installation in compatible equipment where electrical ratings and physical configuration match application requirements
• Compliance requirements may vary based on equipment, installation conditions, and local electrical codes

Where It Works Best

The E3090 circuit breaker is commonly used in commercial, industrial, and institutional facilities where a 90 Amp, 3-pole Type E circuit breaker is required. Typical applications include electrical distribution equipment, panelboards, motor feeder circuits, control systems, and other power distribution installations requiring matching amperage, interrupting capacity, and configuration specifications. It is particularly suitable for maintenance and replacement projects where preserving the original form, fit, and function of the electrical system is a priority.