12.F4.C1E-6L10 KEB
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The 12.F4.C1E-6L10 is a frequency inverter produced by KEB as part of the F4 Combivert Frequency Inverters series. This E-size model has a maximum rated motor power of 4 kW and features an integrated braking transistor. It operates with a nominal output current of 9.5 A at 400V and holds a protection rating of IP20.
Internal Product Review
The 12.F4.C1E-6L10 is a KEB COMBIVERT F4 frequency inverter with 4 kW rated motor power and 9.5 A nominal output current. IP20 protection and an integrated braking transistor make this unit a solid fit for controlled industrial drive installations. Operation across -10 to 45°C gives this inverter strong practical range for dependable service.
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Product Description:
The 12.F4.C1E-6L10 is an AC frequency inverter produced by KEB in the F4 Combivert Frequency Inverters series. As a COMBIVERT F4 unit, it converts fixed-frequency mains power into variable voltage and frequency for asynchronous motors, permitting closed-loop speed and torque control in automated machinery. The housing uses an E-size mechanical frame, so it shares mounting-hole patterns with other F4 inverters and simplifies installation in compatible equipment.
Electrical output is matched to medium-power drives: the inverter delivers a nominal apparent power of 6.6 kVA and supports motors up to 4 kW. This output range covers many fan, pump, and small conveyor applications. During 400 V-class operation, continuous output current reaches 9.5 A, giving the drive sufficient headroom for typical 110 % short-term overloads required during starting. A fixed carrier frequency of 2 kHz minimizes audible noise while keeping switching losses within the unit’s thermal limits. The front is rated IP20, making live conductors finger-safe while requiring a switchgear cabinet for protection against dust and moisture.
The inverter operates safely from -10 to 45 °C and tolerates ambient relative humidity up to 95% without condensation, allowing installation in unheated warehouses or warm production areas when adequate air circulation is available. The control logic uses Compact mode, which simplifies menu navigation by displaying only the parameters needed for constant-torque or variable-torque profiles. The integrated fieldbus uses its Standard configuration, while hard-wired digital I/O and optional serial cards provide control and communication options. An integrated braking transistor dissipates regenerated energy during rapid deceleration, eliminating the need for an external chopper and helping the DC link remain within safe voltage limits during vertical-axis movement or high-inertia stops.
