Multifunction relay
MK 7850N

Time dependent controls for industrial and railway applications

Advantages
. Up to 10 functions in one unit
. Simplified storage
. Increased flexibility
. Quick setting of long time values

Features
. 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

Technical specifications
Width: 22,5mm
Approvals: UL
Enclosure design: Switch cabinet
Output contacts: 2 C/O contacts
Nominal voltage: AC/DC
Time function(s): Off-delay, with control signal, On-delay, On- and Off-delay, Cyclic timer, Flasher relay, Fleeting on make, Fleeting on break, Fleeting on make and brake, Impulsgeber
Type: MK 7850N
Time range: 0,02 s - 300 h
Connection facility for remote potentiometer: Yes


Manufacturer: E. Dold & Söhne GmbH & Co. KG
Type: MK7850N.82/200/61 AC/DC12-240V
Art. No.: 0056618