Product Description:

The 09.Z1.F04-1010 is a motor choke produced by KEB within the Z1 Sine Wave EMC Filters series. Positioned on the output side of a variable-frequency drive, it filters steep switching pulses so the motor receives a smoother sinusoidal voltage. This action mitigates electromagnetic emissions and reduces insulation stress, making the device a routine component in conveyor, pump, and fan installations where long cable runs or sensitive nearby equipment require controlled electromagnetic compatibility.

Its electrical ratings align with standard industrial drive outputs. The choke is designed for a three-phase system and carries a nominal line potential of 400 VAC. Under this voltage, the windings are sized for a continuous current of 4.1 A, making it suitable for small to mid-range motors. Magnetic energy storage is set by an inductance of 3.18 mH, and this value helps smooth rising current and suppress high-frequency components. The choke supports motor frequencies up to 100 Hz, matching typical inverter outputs without saturating the core. Its laminated stack can accept carrier modulation up to 2 kHz, so the inductive impedance remains effective with modern drives that use elevated switching rates. Power terminals accommodate 4 mm² conductors, and the unit operates across all three phases without a neutral connection.

The device tolerates line excursions up to 550 V without insulation breakdown and dissipates only 15 W of heat at rated load, which helps simplify panel ventilation. Overall mass is 1.1 kg, while a separate 0.4 kg of copper contributes to that weight and supports low winding resistance. The enclosure measures 121 mm in height, 53 mm in depth, and 100 mm in width, allowing dense stacking beside contactors or circuit breakers. Mounting holes are integrated into the baseplate for straightforward installation. These dimensions also make the choke suitable for compact control cabinets where space around drive accessories is limited.