12.56.20A-3389
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In-Stock, Ships 3-5 Days
The 12.56.20A-3389 axis drive can measure gap between rotating and stationary parts, detect shaft bearing wear, and evaluate radial and axial displacement. Part of the F5 Combivert Axis Drives from KEB, it assesses relative thermal expansion and measures oil film thickness to ensure optimal operation.
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Product Description:
12.56.20A-3389 is an industrial frequency inverter. It is manufactured by KEB Automation for industrial applications requiring precise motor parameter control. The inverter produces AC output with controlled amplitude and frequency. It is designed for 3-phase AC input at 400 Volts. The supported input voltage range is from 305 to 455 Volts at 50/60 Hertz. An rectifier converts input AC to DC, and an inverter converts this DC to AC output. KEB recommends using power lines with minimum 2.5 mm2 cross sectional area. A 20 Amps fuse can be used at the AC mains input to protect the inverter from input overcurrent events. Performance specifications for the 12.56.20A-3389 inverter include 6.6 kVA rated power, 9.5 Amps rated current, and 4 kilowatts maximum motor output. Approximate weight of the inverter is 7 kilograms.
The approximate inverter dimensions are 248 x 358 x 182 millimeters. Proper cooling is essential for reliable and safe inverter operation. To ensure uninterrupted airflow around the mounted unit, KEB recommends minimum spacing requirements of 100 millimeters on the top and bottom and 50 millimeters on either side. The inverter is designed for stationary operation. When used with fan cooling, the required airflow is 0.5 cubic meters per minute. When installed inside a control cabinet, the area of the radiating surface must be at least 2 square meters. If operators desire to use motor protective switches or relays, they must note that these can malfunction and can only provide condition protection. PTC evaluation is a better method for protecting motors from overload conditions. Control and power inputs to the inverter feature interference protection. Installation and operation of the unit must be carried out by trained specialists.
Frequently Asked Questions about 12.56.20A-3389:
Q: What is the weight of the unit?
A: Weight of the unit is 7 kg.
Q: What are the inverter dimensions?
A: Dimensions of the inverter are 248 x 358 x 182 mm.
Q: What is the rated power output?
A: The rated power output is 6.6 kVA.
Q: What is protection rating of the inverter?
A: Protection rating of the inverter is IP00.
Q: What is the mains fuse rating?
A: The mains fuse rating is 20 Amps.
