Multifunction relay
MK 7850N
Time dependent controls for industrial and railway applications
| Approvals: | UL |
|---|---|
| Connection facility for remote potentiometer: | Yes |
| Enclosure design: | Switch cabinet |
| Nominal voltage: | AC/DC |
| Output contacts: | 2 C/O contacts |
| Time function(s): | Cyclic timer, Flasher relay, Fleeting on break, Fleeting on make, Fleeting on make and brake, Impulsgeber, Off-delay, with control signal, On- and Off-delay, On-delay |
| Time range: | 0,02 s - 300 h |
| Type: | MK 7850N |
| Width: | 22,5 mm |
- Up to 10 functions in one unit
- Simplified storage
- Increased flexibility
- Quick setting of long time values
- 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