Product Description:

The 12.G6.CDB-39B0 is an AC inverter produced by KEB within the G6 Combivert IO Inverters series. It converts fixed-frequency three-phase power into a variable output that lets induction or synchronous motors be regulated for speed and torque in automated conveyors, pumps, and material-handling stations. With a cabinet depth of 230 mm and a width of 117 mm, the unit fits easily into standard control panels without enlarging enclosure footprints. Its compact form is useful where multiple drives, protection devices, and control components must be arranged within the same enclosure.

The drive accepts a 3ph 400 V AC/DC supply and draws an input current of 13 A at nominal load. Internally, it is protected by a 20 A mains fuse, and its contactor opens at an overcurrent release current of 20.6 A to isolate faults quickly. Motor power up to 4 kW can be delivered, corresponding to an inverter output of 6.6 kVA with a continuous motor current of 9.5 A. For short acceleration bursts, the stage can supply 17.1 A before its current-limit timer intervenes. Pulse-width modulation is executed at a rated carrier frequency of 4 kHz, while operators may raise the carrier to 8 kHz where lower acoustic noise is required. This operating range supports both steady running and brief load changes without requiring a larger frame.

The inverter is air cooled, so steady airflow across its heat sink must be maintained to remove the 92 W of full-load power loss. A sealed steel housing stands 260 mm high yet weighs only 4.6 kg, which helps simplify mounting while limiting added load on the panel structure. The enclosure format also leaves room for adjacent wiring ducts and control hardware in compact cabinets. Consistent airflow is still important because heat must leave the housing efficiently during continuous operation.