07.F4.S1D-4A00 KEB
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The KEB 07.F4.S1D-4A00 is a frequency inverter from the F4 Combivert Frequency Inverters series with a rated motor power of 0.75 kW and an output nominal current of 2.6 A. It features a braking transistor accessory and supports three input phases with a maximum heat sink temperature of 85 degrees Celsius. The unit offers a nominal input current of 2.8 A and is designed for an output nominal power of 1.8 kVA.
Internal Product Review
The 07.F4.S1D-4A00 is a KEB F4 Combivert frequency inverter rated for 0.75 kW motor power with 3-phase input. A braking transistor and 5 A maximum braking current support strong deceleration control for demanding drive duties. With 2.6 A nominal output current and a 4 kHz operating frequency, this inverter delivers smooth and dependable performance.
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Product Description:
The 07.F4.S1D-4A00 is a frequency inverter built by KEB for the F4 Combivert Frequency Inverters series. Housed in the compact D enclosure, the unit interfaces with plant mains through screw terminals sized for a 1.5 mm² conductor cross section, and it incorporates an internal braking transistor to route surplus energy into an external resistor. This arrangement helps the drive manage deceleration energy during stop cycles instead of leaving it on the DC bus. Within an automation cell, the inverter modulates AC supply voltage so that a 0.75 kW induction motor can be speed-controlled without mechanical throttling.
The drive accepts a 3-phase line and draws a nominal input of 2.8 A, which helps size upstream wiring and protection devices. Behind the rectifier and DC link, the unit delivers an output of 1.8 kVA with a steady RMS current of 2.6 A, matching typical fan or pump loads for this frame. That output is optimized for motors up to 0.75 kW and is synthesized at a carrier frequency of 4 kHz, balancing audible noise and switching loss. KEB specifies a short-time current limit of 4.6 A and an overcurrent trip threshold of 5.7 A, so brief overloads can be tolerated before protective shutdown. A 10 A class gG mains fuse is recommended to clear fault energy without nuisance trips.
Dynamic stopping is supported by a maximum brake transistor channel of 5 A, and the connected resistor must not fall below 160 Ω. The heat sink may rise to 85 °C under full switching duty, while the electronics shed only 45 W of power loss, which simplifies cabinet ventilation. Low dissipation helps reduce temperature buildup around adjacent components in tightly packed enclosures. Using the recommended conductor size also helps limit terminal heating during normal operation.
