MX250 MICROPROCESSOR CONTROLLER
The MX250 microprocessor is standard with the entire CTS product family. The MX250 Series includes all the standard features of the MX150 Controller while offering expanded programmability and field adaptability. The high reliability and ease of unattended operation makes it ideal to use in a wide range of mission critical applications.
SPECIFICATIONS
Rating RangeSwitch Dependent
Transfer TypeApplication Dependent
Switch TypeApplication Dependent
technical summary
Rating RangeSwitch Dependent
Transfer TypeApplication Dependent
Switch TypeApplication Dependent
controller specifications
Undervoltage dropout for source 1 and source 275-98% of nominal
Undervoltage restore for source 1 and source 285-100% of nominal
Underfrequency dropout for source 1 and source 290-100% of nominal
Delay for engine cool down (U)0-60 minutes
Delay transfer to nonpreferred source (W)0-5 minutes
Delay NeutralTransition time delays (DT,DW)0-10 minutes
Storage temperature(-30˚C - 75˚C ), -22˚F - 167˚F
Operating temperature (ambient)40 - 400 amp molded shell (-20˚C to 65˚C) , -4˚F to 149˚F
40 - 4000 amp all others (-20˚C to 60˚C), -4˚F to 149˚F
MX250 Microprocessor Controller STANDARD EQUIPMENT
- performance
UL, CSA and IEC listed
Ringing wave immunity per IEEE 472(ANSIC37.90A)
Conducted and Radiated Emissions per EN55022Class B (CISPR11) (Exceeds EN55011 - milstd461 class 3###esd immunity test per en6100042 class blevel 4###radiated rf electromagnetic field immunitytest per en6100043 env50140 10vm###electrical fast transientburst immunity test peren6100044###surge immunity test per en6100045 ieee c6241###conducted immunity test per en6100046env50141###voltage dips and interruption immunity en61000411
User Friendly Operation - multipurpose display leds for continuous monitoring of switch position and source availability a four line by twenty character lcd display for settings functions programming and annunciation###throughthedoor programming and display###simplified keypad entry – menudriven system is designed for ease of use###builtin diagnosis with displays for ease of troubleshooting###weather and tamper resistant touchpad
Additional Features - builtin programmable exerciser uses separate microcontroller with independent battery backup to serve as clockcalendar – battery failure will not affect switch operation###user settings are unaffected by power outages###separate line voltage components for controller isolation###inputs are optoisolated for high electrical immunity to transients and noise###builtin electrical operator protection###watchdog circuit for microprocessor operation###source connection and transfer data logging