ET4037 - 100Amp Circuit Breaker

ET4037 - 100Amp Circuit Breaker

When you're replacing an existing ET4037 molded case circuit breaker, matching the original specifications is one of the most important steps. This 100 Amp, 3-pole Type F circuit breaker is rated for 480VAC systems and offers a 14kA interrupting capacity at 480VAC, making it suitable for a variety of commercial and industrial electrical distribution applications. Designed for 40°C ambient operation, the ET4037 is intended as a form, fit, and functional replacement for compatible equipment. Its molded case construction is built to last, helping keep existing systems operating as intended without changing the original electrical design.

Key Features and Benefits

• 100 Amp current rating
• Three-pole configuration for three-phase electrical systems
• Type F molded case circuit breaker
• Rated for 480VAC applications
• 14kA interrupting capacity at 480VAC
• Suitable for operation in 40°C ambient temperatures
• Built to last with durable molded case construction
• Form, fit, and functional replacement for compatible equipment
• Helps protect circuits from overloads and short circuits
• A practical choice for maintenance and repair of existing electrical systems
  

Technical Specifications

• Part Number: ET4037
  
• Product Type: Molded Case Circuit Breaker
  
• Type: F
  
• Amperage: 100 Amps
  
• Poles: 3
  
• Voltage Rating: 480VAC
  
• Interrupting Capacity: 14kA @ 480VAC
  
• Ambient Temperature Rating: 40°C
  
• Dimensions:
  • Height: 10.00 in.
  • Width: 4.50 in.
  • Depth: 4.00 in.
• Approximate Shipping Weight: 11 lbs.
  

Material Compliance and Certifications

• Before installing the ET4037, confirm that its amperage, voltage rating, interrupting capacity, pole configuration, and breaker type match the original equipment requirements.
• Using the correct replacement helps maintain the intended operation of the electrical system.
• Installation should always be completed by qualified personnel and in accordance with applicable electrical codes and manufacturer requirements.
  

Where It Works Best

The ET4037 is commonly used in commercial buildings, industrial facilities, manufacturing plants, switchboards, and other 480VAC electrical distribution systems that require a 100 Amp, 3-pole Type F molded case circuit breaker.