Free UPS Ground on All Orders!
+1 (919) 205-4392
Eaton Cutler-Hammer BR Circuit Breakers BR340ST

Product image is representative; revision or series may vary. Contact us to request a specific version.

BR340ST

|

The BR340ST from Eaton Cutler-Hammer is a thermal-magnetic breaker designed for reliable circuit protection. With a rated current of 40 A and a voltage rating of 240 VAC, it features a three-pole configuration for various applications.

Call for an immediate quote
2 Year DO Supply Warranty
Available
Ships from Raleigh, NC
Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
Learn more

Technical specifications for BR340ST

ManufacturerEaton Cutler-Hammer
Product TypeThermal-Magnetic Breaker
Product LineBR Circuit Breakers
Part NumberBR340ST
UPC786676003407
Acceptable Conductor Size#14 to #4 AWG
Trip MechanismCommon Trip
Panelboard ConnectionPlug-On
Short-Circuit Interrupting Capacity10 kA
Pole Configuration3 Poles
Rated Voltage240 VAC
Rated Current40 A
Auxiliary Trip DeviceShunt Trip Included
Panel CompatibilityBR Load Centers
System Frequency60 Hz

The Eaton Cutler-Hammer BR340ST is a thermal-magnetic circuit breaker that offers effective protection in electrical systems. It is structured to operate at a rated voltage of 240 VAC with a capacity of 40 A, making it suitable for diverse load demands. Featuring three poles, the breaker is designed for three-phase systems and supports a simple plug-on connection to panelboards.

The unit complies with standard requirements by accommodating conductor sizes from #14 AWG to #4 AWG, giving flexibility for different installations. A significant feature is its common trip mechanism, allowing simultaneous disconnection of all poles during an overload or fault condition, ensuring improved safety. The BR340ST also has a short-circuit interrupting capacity of 10 kA, which is critical in protecting circuits from damage during fault occurrences.

Additionally, the breaker includes a shunt trip device, enhancing its functionality for remote control applications. It is also optimized to function within a system frequency of 60 Hz, ensuring compatibility with standard electrical systems. Overall, the BR340ST thermal-magnetic breaker is an essential component for maintaining system reliability in various electrical configurations.