HGB3B040B - 40Amp Circuit Breaker

HGB3B040B - 40Amp Circuit Breaker

The HGB3B040B is a 3-pole, 40-amp molded case circuit breaker built for panelboard applications where dependable circuit protection is essential. With an interrupting capacity of 35kA at 480VAC and 100kA at 240VAC, it helps protect electrical equipment against overloads and short circuits in commercial and industrial power distribution systems. This breaker is HACR rated, making it a practical choice for HVAC and refrigeration equipment, and it is calibrated for operation in 40°C ambient conditions. Its compact size fits easily into compatible panelboards, and the included load-side terminals can simplify installation when replacing an existing breaker or completing a new project. Whether you're maintaining a facility, upgrading electrical equipment, or sourcing a replacement breaker, the HGB3B040B delivers the electrical ratings professionals expect without taking up unnecessary panel space.

Key Features and Benefits

• 40 Amp Current Rating: 40 Amp current rating.
• Three-Pole Configuration: Three-pole configuration for three-phase systems.
• Molded Case Design: Molded case design for overload and short-circuit protection.
• Interrupting Rating: Rated 35kA at 480VAC and 100kA at 240VAC.
• Panelboard Mounting: Panelboard mounting style.
• HACR Rated: HACR rated for heating, air conditioning, and refrigeration equipment.
• 40°C Ambient Operation: Calibrated for 40°C ambient operation.
• Load-Side Terminals Included: Includes load-side terminals for installation.
  

Technical Specifications

• Part Number: HGB3B040B
  
• Type: HGB
  
• Circuit Breaker Type: Molded Case
  
• Poles: 3
  
• Amperage: 40A
  
• Interrupting Rating: 35kA @ 480VAC; 100kA @ 240VAC
  
• Mounting: Panelboard Mount
  
• Ambient Rating: 40°C
  
• HACR Rated: Yes
  
• Included: Load-Side Terminals
  
• Dimensions:
  • Height: 5.0 in.
  • Width: 3.0 in.
  • Depth: 3.06 in.

Material Compliance and Certifications

• HACR Rated: HACR rated.
• 40°C Ambient Conditions: Calibrated for operation in 40°C ambient conditions.
  

Where It Works Best

• The HGB3B040B is commonly used in commercial buildings, industrial facilities, manufacturing plants, and HVAC installations that require a 40-amp, three-phase panelboard breaker. It works well as a replacement unit or for new installations where the specified interrupting ratings and mounting style match the application.