18.Z1.B03-1012 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 18.Z1.B03-1012 is a line choke from the Z1 Sine Wave EMC Filters series, designed for three-phase systems and supports a voltage class of 230 V. It has a drive size of 18, operates at 60 Hz mains frequency, and uses 75°C copper conductors. The filter offers 3 percent relative impedance and is evaluated for field wiring with a maximum ambient temperature of 45°C.
Internal Product Review
The 18.Z1.B03-1012 is a KEB Z1 Sine Wave EMC Filter built as a three-phase line choke. Support for 230 V class operation and 60 Hz mains makes integration straightforward in standard drive applications. A 3% Uk impedance and 45 °C ambient rating give the unit dependable filtering performance.
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Product Description:
The 18.Z1.B03-1012 sine-wave electromagnetic compatibility filter is produced by KEB for the Z1 Sine Wave EMC Filters series. Installed between an inverter and the plant mains, this device limits high-frequency interference and attenuates steep voltage edges that could stress motor insulation and adjacent equipment. By smoothing the current drawn by a drive, the filter helps automation systems comply with emission limits and can extend the service life of connected motors and cables.
The unit functions as a line choke, meaning its inductive core opposes rapid current changes and lowers differential-mode noise. It is designed for three-phase power networks, so each phase passes through an equal impedance path. The rated voltage of 230 V is suitable for low-voltage industrial supplies and supports the required insulation spacing inside the coil assembly. A relative impedance of 3% Uk indicates that the choke drops three percent of the system voltage while carrying rated current, limiting harmonics without causing excessive loss. The core materials and winding geometry are optimized for a fundamental frequency of 60 Hz, allowing the inductance to remain stable under typical North American mains conditions.
The windings accept 75 °C copper conductors, so the connected cable insulation must tolerate that operating temperature. The dimensions correspond to drive size 18, allowing the choke to mount beside the matching inverter without additional brackets. Continuous operation is permitted at ambient temperatures up to 45 °C; operation above this value requires derating to prevent core saturation or premature insulation aging. The connection points support field wiring, giving panel builders flexibility when routing individual phase conductors directly through the choke. Appropriate conductor sizing, terminal tightening, and enclosure ventilation help maintain dependable electrical and thermal performance during continuous operation.
