Control Techniques Commander SK Series AC Inverter for 18.5kW (30HP) 400V three phase motor to 40A at High Overload or 22kW (30HP) to 43A when Fan/Pump rated. Operates in VxF or Sensorless Vector Control and converts fixed frequency three phase 400V Input to variable frequency three phase 400V to control the speed of a standard AC Induction Motor.
From October 2017 the CT Commander SK series is no longer available. The manufacturer recommends that customers upgrade to the Unidrive M200. See linked products below for M200 of equivalent rating.
Size 3: 250mm Wide x 260mm Deep x 389mm High. IP20
Weight: 15kg.
Overload: 150% x 60 seconds from cold, 150% x 8 seconds from full load (High Overload)
Overload: 110% x 215 seconds from cold, 110% x 5 seconds from full load (Fan/Pump Rated)
Speed Control Range: 0-1500Hz
Braking: Minimum 18 Ohm, Average 27.8kW for 60 seconds external resistor (not supplied) - use the 'Which Resistor' button on this page.
1 Analogue Input, 1 Analogue/Digital Input, 4 Digital Inputs, 1 Analogue Output, 1 Digital Input/Output, 1 Relay Contact set, RJ45 port for Modbus.
Input Current: 40.2A (Fan/Pump Rated)
Input Voltage: 380-480V Three Phase ±10% at 50-60Hz ±5%
EMC Filters: EN 61800-3:2004 Second Environment (Industrial). Can be removed if required.
Wall mount in clean environment or cubicle mount.
Rated 40°C Ambient.
Ventilation space in front: [not specified].
Ventilation space above and below: 100mm.
Ventilation space at sides: 30mm.
Heat Loss at max output: 411W (High Overload), 437W (Fan/Pump rated) at ambient temperature and default switching frequency.
Mounting via 4 x 6.5mm diameter holes at rear on 106mm x 327mm centres.
Manufacturer part number is SK3402. Replaces Commander SE.
Download the Commander SK Manual and Guides from the links below:-