07.F4.SRD-3420 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 07.F4.SRD-3420 is part of the F4 Combivert Frequency Inverters series and supports a three-phase 400 V input with a voltage class of 400 V. It features a standard control type, D housing type, and IP20 ingress protection. The inverter delivers a nominal output current of 2.6 A and a nominal output power of 1.8 kVA, with a maximum heat sink temperature of 85 degrees Celsius.
Internal Product Review
The 07.F4.SRD-3420 is a KEB F4 Combivert frequency inverter with standard control and a 400 V class rating. Three-phase input and 2.6 A nominal output current support stable drive performance in typical industrial duty. IP20 protection and a 4 kHz rated switching frequency make the inverter a strong choice for clean panel installations and consistent motor control.
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Product Description:
The 07.F4.SRD-3420 is a three-phase AC frequency inverter from the F4 Combivert Frequency Inverters series manufactured by KEB. As a drive controller, it modulates the fixed utility supply to provide variable voltage and frequency for induction motors used in conveyors, mixers, or pump systems. The unit uses the Standard control type in this series and is built in the compact D housing, which provides IP20 protection for installation inside a ventilated control cabinet.
This inverter is designed for a 400 V supply network and draws a nominal input current of 2.8 A during continuous operation. A line breaker or fuse rated at 10 A protects the upstream circuit, while an OC trip activates at 5.7 A to disconnect the drive if an output fault occurs. Short load surges up to 4.6 A are permissible for rapid acceleration without triggering a trip. Internally, the power stage dissipates 45 W as heat under full load, so cabinet airflow must remove this heat loss. Field wiring connects to spring terminals that accept 1.5 mm² conductors, and each screw must be tightened to 0.5 Nm to maintain proper contact resistance. The drive layout keeps the control electronics within the D frame size and maintains the clearance distances required by the IP20 enclosure.
On the motor side, the inverter delivers 1.8 kVA of apparent power with an output current of 2.6 A. Pulse-width modulation is processed at a switching frequency of 4 kHz, balancing acoustic noise and semiconductor stress. Thermal management is governed by a maximum heat sink temperature of 85 °C, and operation above this point forces the unit to derate to help prevent IGBT damage. Matching the conductor cross-section, terminal torque, and fuse size to these values helps the drive operate correctly in small automation cells that need adjustable speed and controlled acceleration.
