C140 - 40Amp Circuit Breaker

C140 - 40Amp Circuit Breaker

When reliable circuit protection matters, the C140 40 Amp single-pole circuit breaker delivers the performance needed to help keep electrical systems operating safely. Designed as a Type C plug-on circuit breaker, this breaker provides dependable protection against overloads and short circuits while fitting compatible load centers and panelboards.

Whether you're replacing a worn breaker, servicing an HVAC system, or maintaining an existing electrical panel, choosing the correct breaker is essential for protecting both equipment and wiring. The C140 combines a compact design with a 40 Amp rating and a 10kA interrupting capacity at 120VAC, making it a practical choice for a variety of residential, commercial, and light industrial applications.

If you're looking for a 40 Amp Type C circuit breaker that provides dependable overcurrent protection and is built for everyday electrical applications, the C140 is a trusted solution for keeping circuits protected and operating as intended.

Key Features and Benefits

• 40 Amp current rating for branch circuit protection
• Single-pole design for compatible 120VAC applications
• Type C circuit breaker configuration
• Plug-on mounting style for convenient installation
• HACR rated for approved HVAC and refrigeration equipment
• Helps protect electrical systems from overloads and short circuits
• 10kA interrupting capacity at 120VAC
• Compact size fits compatible panel configurations
• Suitable for replacement, repair, and maintenance projects
• Supports reliable operation of connected electrical equipment
  

Technical Specifications

• Part Number: C140
  
• Type: C
  
• Amperage: 40 Amps
  
• Poles: 1
  
• Voltage Rating: 120VAC
  
• Interrupting Capacity: 10kA @ 120VAC
  
• Mounting Style: Plug-On
  
• HACR Rated: Yes
  
• Width: 1.00 in.
  
• Height: 2.88 in.
  
• Depth: 2.56 in.
  
• Dimensions: 1.00"W x 2.88"H x 2.56"D
  
• Approx. Shipping Weight: 0.50 lbs.
  

Material Compliance and Certifications

• HACR rated for approved heating, air conditioning, and refrigeration applications
• Manufactured for use in compatible electrical distribution systems
• Designed to provide overcurrent and short-circuit protection
• Should be installed in accordance with applicable electrical codes and manufacturer recommendations
• Panel compatibility should always be verified before installation
  

Where It Works Best

• The C140 is commonly used in electrical systems that require a 40 Amp single-pole breaker for branch circuit protection. Typical applications include HVAC equipment, refrigeration systems, dedicated appliance circuits, workshops, utility rooms, maintenance facilities, and general commercial or residential electrical distribution systems. It is particularly well suited for replacement projects where maintaining compatibility with existing Type C equipment is important.
• From routine electrical maintenance to system upgrades and repairs, the C140 helps provide the dependable protection needed to keep circuits operating safely and efficiently.