12.Z2.F04-1003 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 12.Z2.F04-1003 is a three phase motor choke from the Z2 series with a rated current of 9.5 Amps and rated voltage of 400 to 480 Volts. It has an IP20 degree of protection, weighs 4.7 kilograms, and uses a terminal push-lock connection type. The choke offers an inductance of 0.967 millihenry and can operate at site altitudes up to 2000 meters.
Internal Product Review
The 12.Z2.F04-1003 is a KEB three-phase motor choke designed for drive-side filtering at 400/480 V with a 9.5 A rated current. Terminal push-lock connections and IP20 protection make the choke a well-executed option for straightforward panel integration and dependable industrial service.
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Product Description:
The 12.Z2.F04-1003 is a three-phase motor choke manufactured by KEB as part of the Z2 Three Phase Motor Chokes series. The unit is wired in line with an inverter output, where its iron core and windings add inductive impedance that damps steep current gradients and reduces electromagnetic interference in automated drive cabinets. By moderating these electrical stresses, the choke helps prolong motor insulation life and assists drives in meeting conducted emission limits commonly applied to industrial automation equipment.
It carries a rated phase current of 9.5 A, allowing the choke to support small and midsize motors without magnetic saturation. The laminated core is designed for an operating voltage of 400/480 V, so the device is compatible with common European and North American inverter systems. At the fundamental frequency, the winding has an inductance of 0.967 mH, providing sufficient reactance to limit differential-mode noise while keeping the voltage drop modest. The copper resistance is 104 mΩ, producing ohmic heating that rises with the electrical load and switching speed. At a carrier frequency of 1.6 kHz, the calculated power dissipation reaches 136 W, so forced ventilation or adequate spacing is recommended to maintain an acceptable operating temperature.
Electrical terminations use a 6 mm² or 10 AWG push-lock terminal strip that accepts finely stranded or solid copper conductors and eliminates the need to tighten screws. The housing has an IP20 protection rating, which restricts access to live parts while permitting airflow, and the choke is intended for vertical hanging installation inside a control panel. Continuous operation is permitted at installation altitudes up to 2000 m without derating, making the choke suitable for most factory elevations. The assembly weighs 4.7 kg, limiting the mechanical load placed on the cabinet, and it may be stored at temperatures up to 55 °C or transported at temperatures up to 70 °C without damage.
