Allen-Bradley
Allen-Bradley 140G MCCB K Frame 50kA 3P 300A Adjustable Thermal Magnetic
Item No. 140GK3F3D30
Product Range: Moulded Case Circuit Breaker
Component Type (ETIM Class)
Power switching circuit breaker
Electrical
Rated current In300 A
Number of poles3
Max. rated operation voltage Ue AC690 V
Rated ultimate short-circuit breaking capacity lcu at 415 V, 50 Hz50 kA
Rated service short-circuit breaking capacity lcs at 415 V, 50 Hz50 kA
Type of protection trip unitThermal/magnetic release
Trip curveAdj. thermal, adj. magnetic
Frame size rating400 A
Long time overload protection adjustment range210-300 A
Construction
Air circuit breaker (withdrawable)No
Mechanical
DIN rail (top hat rail) mounting optionalNo
Mechanical life (service cycles)20000 cycles
Dimensions
Height205 mm
Width139.5 mm
Pole connection pitch46.5 mm
Built-in depth103.5 mm
Depth (toggle included)139 mm
Weight3.25 kg
Environment
Rated surrounding temperature without derating40 °C
Maximum operating temperature75 °C
Storage temperature-40-80 °C
Max. altitude before derating2000 m