RD325T33W - 2500 Amp Circuit Breaker

RD325T33W - 2500 Amp Circuit Breaker

When keeping an existing electrical distribution system operating as designed, using compatible replacement components matters. The RD325T33W is a 3-pole, 2500A R-Frame molded case circuit breaker frame built for applications requiring dependable thermal-magnetic protection in commercial and industrial power systems. Designed for 50/60 Hz operation at an ambient temperature of 40°C, this breaker frame offers adjustable protection settings that help match the needs of your installation while maintaining compatibility with existing equipment. This model features adjustable long-delay pickup through the use of a compatible adjustable rating plug, along with adjustable short-delay pickup that can be configured for either fixed short-delay time (I²T response) or adjustable short-delay time (flat response). These features make it easier to coordinate protection across a power distribution system while helping safeguard connected equipment from overloads and short-circuit conditions.

Key Features and Benefits

• Compatible R-Frame: Compatible R-Frame molded case circuit breaker frame.
• 3-Pole Configuration: 3-pole configuration for three-phase electrical systems.
• 2500-Amp Frame Size: 2500-amp frame size.
• Thermal-Magnetic Trip Design: Thermal-magnetic trip design.
• Adjustable Long-Delay Pickup: Adjustable long-delay pickup using a compatible adjustable rating plug.
• Adjustable Short-Delay Pickup: Adjustable short-delay pickup with selectable I²T or flat response.
• 50/60 Hz Applications: Suitable for 50/60 Hz applications.
• 40°C Rated: Rated for operation at 40°C.
• Frame Only: Frame only—does not include a rating plug or lug terminals.
• Built to Last: Built to last for continued service in properly maintained electrical distribution equipment.
  

Technical Specifications

• Part Number: RD325T33W
  
• Type: RD
  
• Frame: R-Frame
  
• Circuit Breaker Type: Molded Case Circuit Breaker Frame
  
• Poles: 3
  
• Frame Rating: 2500 Amps
  
• Frequency: 50/60 Hz
  
• Ambient Temperature: 40°C
  
• Trip Unit: Thermal-Magnetic
  
• Long Delay: Adjustable Pickup (via compatible rating plug)
  
• Short Delay: Adjustable Pickup with Fixed Short Delay (I²T Response) or Adjustable Short Delay Time (Flat Response)
  
• Interrupting Capacity: 50kA @ 600 VAC; 65kA @ 480 VAC; 125kA @ 240 VAC
  
• Dimensions:
  • Height: 16.0 in.
  • Width: 15.5 in.
  • Depth: 9.75 in.
• Included: Breaker Frame Only
  
• Not Included: Rating Plug, Lug Terminals
  

Material Compliance and Certifications

• Construction: Molded case thermal-magnetic circuit breaker frame.
• Application: Designed for 50/60 Hz AC electrical systems.
• Operating Rating: Rated for operation in 40°C ambient environments.
• Interrupting Ratings:
  • 50kA @ 600 VAC
  • 65kA @ 480 VAC
  • 125kA @ 240 VAC
• Installation Requirements: Always verify compatibility with your existing equipment and follow applicable electrical codes and manufacturer requirements before installation.
  

Where It Works Best

• The RD325T33W is commonly used in commercial, industrial, institutional, and large facility electrical distribution systems where an R-Frame, 2500A molded case circuit breaker frame is specified. It is well-suited for switchgear, switchboards, panelboards, and other power distribution equipment that requires configurable overload and short-circuit protection through a compatible rating plug. Because this listing includes the breaker frame only, it is an ideal solution for maintenance projects where existing components such as the rating plug and lug terminals will be installed separately. If you're servicing compatible legacy equipment and need a replacement that matches the original form, fit, and function, the RD325T33W provides a practical solution while preserving the intended configuration of your electrical system.