Designation 3-phase SCR Energy Saving Motor Controller
Current Size 1 up to 100A
Size 2 up to 195A
Size 3 up to 500A
Size 4 up to 722A
Size 5 up to 1080A
Bypass Internally Bypassed – Size 1 to 3
No Bypass – Size 4 to 5
Motor Protection Full I2T Motor Overload with memory
Current limit set at 4.5x to meet IEC standards
Supply Voltages 208, 230, 400,460 volts as standard
Allowing for varying supply frequency 45Hz-65Hz
Standard Duty Rating Trip Class 10
3x 23 or 3.5x 17
5 starts/hour
90% duty
Frame Sizes Up to 100Amps 95mm wide
Up to 195Amps 142mm wide
Up to 500Amps 205mm wide
Up to 722Amps 490mm wide
Up to 1080Amps 635mm wide
Enclosure Type Up to 195Amps IP20/NEMA 1 – with finger guard
Above 195Amps IP00/NEMA 1
Optional Finger Guards up to 195A to ensure full IP20 enclosures
Enclosure Construction Main chassis: Metal
Front Cover: Injection Moulded Plastic
Terminal Covers: Injection Moulded Plastic
Terminal Position Terminal position/spacing to match common contactors
Terminal Construction Up to 195Amps Cage Clamp
Above 195Amps Plain Busbar
Control Voltages 24V DC, 110/230V AC
Ambient Operating Conditions -20deg C to 50deg C
Fairford iERS Energy Saving Technology Yes
In Delta/6 wire connection Yes
Display Technology 3.5“ Colour-TFT Touch Screen
Keypad Optional IP55 full colour touch keypad available for remote/door fitting
Languages English
Chinese (Mandarin simplified)
Input/Outputs 3 x NO programmable output relays
1 x NC programmable output relays
3 x programmable digital inputs
1 x PTC thermistor input
1 x 0-10V/4-20m Analogue input
1 x 0-10V/4-20m Analogue output
1 x USB
Comms Standard: ModBus
Optional: Anybus providing CAN, Profibus, Ethernet, DeviceNET
Data Logging Equipped with 4Gb memory, allowing the logging of every event
Date of first start (warranty date)
Total number of soft starts
Number of soft stops
Number of error events
Display event logs
Export data in CSV format
EU/IEC Legislation IEC 60947-4-2: 2012
Low Voltage Directive Battery Directive
Energy Using Products/Energy Related Product Directives
Environmental Products comply to REACH, SVHC, RoHS and WEEE
Standards CE, ASME, CSA, ETL
Warranty 2yrs
Reliability Fan efficiency detected, logged and reported
Field Serviceability Firmware upgrade from USB port

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Fairford products are available in these regions

Global Service & Repair Locations
Motortronics USA

Phasetronics Inc. dba Motortronics, 1600 Sunshine Drive
Clearwater, Florida 33765
Tel: 727-573-1819     Fax: 727-573-1803




Central America

Motortronics Korea

41, Cheoyongsaneop 4-gil, Cheongryang-myeon
Ulju-gun, Ulsan, Korea
Tel: 052-237-5808     Fax: 052-237-5806