Westinghouse EHD3020L Molded Case Circuit Breaker

Description:

The Westinghouse EHD3020L Blue Paper Circuit Breaker NTO is a molded case circuit breaker used in industrial and commercial electrical distribution systems. Commonly installed in panelboards, switchgear assemblies, motor control centers, and industrial power systems requiring reliable overcurrent and short-circuit protection. Maintenance electricians, facility engineers, and industrial automation technicians use this breaker for replacement, retrofit, or electrical protection system maintenance. The “Blue Paper” designation commonly refers to older legacy Westinghouse labeling used on Series C breakers.

Applications:

The Westinghouse EHD3020L circuit breaker is commonly used in industrial and commercial electrical systems to protect branch circuits, feeders, and electrical equipment from overload and fault conditions. It is installed in manufacturing facilities, HVAC systems, commercial buildings, and industrial machinery where dependable circuit interruption and stable electrical protection are required. The breaker is designed for use in Westinghouse and Eaton compatible panelboard systems.

Technical Specifications:

• Manufacturer: Westinghouse Electric Corporation
• Model: EHD3020L
• Series: Series C / Blue Paper
• Product Type: Molded Case Circuit Breaker
• Number of Poles: 3-Pole
• Current Rating: 20 Amp
• Voltage Rating: 480 VAC
• Phase Configuration: 3-Phase
• Interrupt Rating: 14kA @ 480VAC
• Trip Type: Thermal Magnetic
• Trip Function: Long-Time and Instantaneous (LI)
• Connection Type: Feed-Thru
• Frame Type: F-Frame
• Mounting Type: Bolt-On / Panelboard installation
• Frequency Rating: 50/60 Hz
• Application: Industrial and commercial electrical distribution systems
• Operating Temperature: 40°C rated operation
• Intended Use: Branch circuit and feeder protection
• Performance Feature: Reliable thermal-magnetic circuit interruption protection

Common Replacements:

• Eaton EHD3020 Molded Case Circuit Breaker
• Siemens Sentron Molded Case Circuit Breaker
• Schneider Electric Square D PowerPact Circuit Breaker