16.Z2.F04-1003 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 16.Z2.F04-1003 is part of the Z2 Three Phase Motor Chokes series and is designed for 3-phase systems with a rated voltage of 400 VAC and a rated current of 33 amps. It features an inductance of 0.278 millihenry, a maximum voltage of 550 volts, and a resistance of 16 milliohms. This motor choke has a maximum output frequency of 1600 Hz, weighs 7.0 kilograms, and has dimensions of 168 mm wide, 160 mm high, and 315 mm deep.
Internal Product Review
The 16.Z2.F04-1003 is a KEB three-phase motor choke engineered for dependable drive output conditioning at 400 VAC and 33 A. A 0.278 mH inductance paired with a 16 kHz maximum switching frequency supports smooth motor performance and makes the unit a strong choice for modern inverter applications.
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Product Description:
The 16.Z2.F04-1003 is a three-phase motor choke manufactured by KEB for the Z2 Three Phase Motor Chokes series. Mounted on the output side of a variable-frequency drive, it provides additional line inductance that limits peak current, dampens switching transients, and improves the power factor of 400 VAC machines. By smoothing the current supplied by an inverter, the choke helps protect motor windings and reduce conducted electromagnetic noise in conveyor drives, pumps, and other automated machinery that operates with high carrier frequencies.
The choke has an inductance of 0.278 mH, which allows it to form a low-pass filter with the motor’s leakage reactance and attenuate high-frequency ripple. It is designed for a rated line current of 33 A, allowing full-load operation of medium-power drives while keeping the copper temperature within acceptable limits. The maximum operating voltage is 550 V, so the unit supports 400 V systems that experience overvoltage during regeneration. All three limbs share the same magnetic path because the device handles three phases simultaneously, helping keep phase imbalance minimal. The laminated core supports a carrier-based inverter with a switching frequency of up to 16 kHz without saturating the iron.
When the connected inverter operates at a fundamental frequency of up to 1600 Hz, the choke dissipates 135 W, while the loss decreases to 102 W at 800 Hz. These loss values can be used when determining the cooling and ventilation requirements of the electrical cabinet. A direct-current resistance of 16 mΩ contributes to a calculated voltage drop of 20% at nominal load, providing harmonic filtering while requiring additional drive voltage headroom. The assembly measures 168 mm wide, 160 mm high, and 315 mm deep, and it weighs 7.0 kg, including 2.1 kg of electrolytic-grade copper. Its dimensions allow the choke to be mounted close to the drive without exceeding typical panel depth allowances.
