Westinghouse EHB3040 Bolt-On Circuit Breaker

Description:

The Westinghouse EHB3040 Bolt-On Circuit Breaker is a 40A 480VAC 3-pole Type EHB circuit breaker used in industrial electrical distribution and three-phase equipment protection systems. Commonly installed in motor control centers, industrial machinery, HVAC systems, compressors, and commercial power distribution equipment requiring secure high-voltage overcurrent protection. Maintenance electricians, OEMs, and facility engineers use this breaker for electrical maintenance, retrofit projects, and replacement of obsolete bolt-on industrial breakers.

Applications:

The Westinghouse EHB3040 bolt-on circuit breaker is designed to provide dependable overload and short-circuit protection for industrial and commercial three-phase electrical systems operating at 480VAC. It is frequently used in automation panels, conveyor systems, motor branch circuits, manufacturing equipment, processing machinery, and facility electrical infrastructure where reliable circuit interruption and stable bolt-on mounting are critical for operational continuity and equipment protection.

Technical Specifications:

• Brand: Westinghouse
• Part Number: EHB3040
• Product Type: Bolt-On Circuit Breaker
• Current Rating: 40 Amp
• Voltage Rating: 480VAC
• Number of Poles: 3 Pole
• Phase: 3 Phase
• Breaker Type: Type EHB
• Mounting Style: Bolt-On
• Application: Branch Circuit and Equipment Protection
• Designed for Overload and Short Circuit Protection
• Suitable for Industrial and Commercial Electrical Systems
• Compatible with Motor Control Centers and Distribution Panels
• Manual Reset and Switching Capability
• Heavy-Duty Industrial Construction

Common Replacements:

• Eaton EHB3040
• Siemens HEB3B040
• Square D EJB34040