MK 7850N

Time dependent controls for industrial and railway applications

• According to IEC/EN 61812-1
• 8 functions settable via rotational switch:
  - Delay on energisation (AV)
  - Fleeting on make (EW)
  - Delayed pulse (IE)
  - Flasher, start with pulse (BI)
  - Delay on de-energisation (RV)
  - Pulse forming function (IF)
  - Fleeting on break (AW)
  - Delay on energisation and de-energisation (AV / RV)
• 8 time ranges from 0.02 s to 300 h selectable via rotational switches
• Voltage range AC/DC 12 ... 240 V
• With time interruption / time adding input for all functions
• Suitable for 2-wire proximity sensor control
• 2 changeover contacts, one programmable as instantaneous contact
• LED indicators for operation, contact position and time delay
• Wire connection: also 2 x 1.5 mm2 stranded ferruled, or 2 x 2.5 mm2 solid DIN 46 228-1/-2/-3/-4
• as option with pluggable terminal blocks for easy exchange of devices
  - with screw terminals
  - or with cage clamp terminals
• 22.5 mm width
  
  
• MK 7850N/500: as MK 7850N/200 but with
• 2 additional functions:
  - Cyclic timer, start with break (TP)
  - Fleeting on make and break (EW / AW)
• second time setting t2 for functions
  - Cyclic timer, start with pulse (TI) or break (TP), based on the separate setting of pulse and break time the flasher function can be used as cyclic timer
  - Fleeting on make and break (EW/AW)
  - Delay on energisation and de-energisation (AV / RV)
  - Delay pulse (IE) and setting of pulse length
• Connection facility for 2 external potentiometers