BR330ST - 30 Amp Circuit Breaker

BR330ST - 30 Amp Circuit Breaker

If your system calls for a 30 Amp, 3-pole shunt trip breaker in an Eaton Type BR panel, the BR330ST is designed for that application. This breaker combines standard thermal-magnetic protection with a factory-installed shunt trip, allowing the breaker to be opened remotely through a connected control circuit. It's commonly used where equipment needs to be shut down from a remote location, such as emergency stop systems, fire alarm interfaces, safety controls, and building automation systems.

The BR330ST protects against overloads and short circuits while providing the added functionality of remote tripping. Its common-trip design means all three poles open together when the breaker trips, which is important for many three-phase circuits. Because it's a plug-on breaker, it installs directly into compatible Eaton Type BR loadcenters without additional mounting hardware.

Key Features and Benefits

• 30 Amp circuit breaker rating
• Three-pole configuration
• Factory-installed shunt trip
• Thermal-magnetic trip mechanism
• Common-trip operation
• Type BR plug-on design
• Compatible with Eaton Type BR loadcenters
• Rated for 240V AC applications
• 10 kAIC interrupting capacity
• Accepts #14–4 AWG copper or aluminum conductors
• Frequently used where remote breaker operation is required
  

Technical Specifications

• Manufacturer: Eaton
  
• Catalog Number: BR330ST
  
• UPC: 786676003384
  
• Product Type: Thermal Magnetic Circuit Breaker
  
• Series: Type BR
  
• Circuit Breaker Type: BR
  
• Amperage Rating: 30 Amps
  
• Voltage Rating: 240V AC
  
• Number of Poles: 3
  
• Trip Type: Common Trip
  
• Shunt Trip: Included
  
• Mounting Method: Plug-On
  
• Interrupt Rating: 10 kAIC
  
• Wire Size Compatibility: #14–4 AWG Copper/Aluminum
  
• Used With: Eaton Type BR Loadcenters
  
• Dimensions:
  • Depth: 3 in.
  • Width: 3 in.
  • Height: 3 in.
• Weight: 1.3 lb
  
• Warranty: Limited Lifetime Residential Warranty; 1-Year Commercial Warranty
  

Material Compliance and Certifications

• UL 489 Listed
• Federal Specifications Classification W-C375
• Manufactured to Eaton Type BR specifications
• Intended for installation in compatible Eaton Type BR loadcenters
  

Where It Works Best

• The Eaton BR330ST is commonly installed in commercial buildings, schools, manufacturing facilities, mechanical rooms, and industrial environments where remote power interruption is part of the system design. You'll often see it connected to emergency stop stations, fire and life safety systems, equipment shutdown controls, HVAC equipment, pumps, compressors, machinery, and other three-phase loads. It is also frequently used when replacing an existing shunt trip breaker in a compatible Eaton Type BR loadcenter.