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ZIEHL    industrie 

–  elektronik    GmbH    +  Co    KG 

Daimlerstr.13,  74523  Schwäbisch  Hall,  Germany 
+ 49 791 504-0,    [email protected],    www.ziehl.de 

 
 

 

Temperature Relays and MINIKA® 

Mains Monitoring 

Digital Panelmeters MINIPAN® 

Switching Relays and Controls 

Measuring Transducers 

Grid- and Plant Protection 

 

Operating Manual MSR820V

 

updated: 2023-07-11 dr 

 

 

 

 

For more information and help about this product please scan the 

QR-Code 

or 

choose the following link: 

MSR820V

 

 

 

Operating manual, Quick guide, Datasheet, Connection diagram, CAD Data 

 

Firmwareupdates, FAQ, Videos about installation and settings, Certificates 

 

MSR820V 

12400-0701-00 

Page

 

1 / 10 

www.ziehl.de 

 

- PTC thermistor relay with 8 inputs for monitoring of  
 

motors, transformers, machines and systems 

 
 

 

 
 

 

 

 

Summary of Contents for MSR820V

Page 1: ...nd Plant Protection Operating Manual MSR820V updated 2023 07 11 dr For more information and help about this product please scan the QR Code or choose the following link MSR820V Operating manual Quick...

Page 2: ...7 9 4 Display of the configuration settings 7 10 Error search 8 11 Technical data 9 12 Housing Type V4 10 13 Disposal 10 1 General Notes Compliance with the following instructions is mandatory to ens...

Page 3: ...n to turn the circuit off or on o The green LED indicates the status on off o Button 2s pressed return to normal operation o 5s no button actuation return to normal operation 2 5 Red sensor LEDs T1 T8...

Page 4: ...ce 1500 each Simple activation deactivation of individual PTC thermistor circuits display via LEDs 2 potential free relay outputs indication of switching status via LEDs Status display of the PTC ther...

Page 5: ...lt according to DIN VDE EN IEC and checked and leave the plant according to security in perfect condition If in any case the information in the instruction s manual is not sufficient please contact ou...

Page 6: ...2 Switching PTC thermistor circuits on and off During operation individual PTC thermistor circuits can be switched on or off Button Function Sensor Select press Selection of the PTC thermistor circui...

Page 7: ...X N C contact Reset Sensor green T2 red Relay function X K1 K2 Quiescent current Reset X K1 K2 Working current Reset X X K1 quiescent current K2 working current Reset Sensor green T3 red Zero voltage...

Page 8: ...uits T1 T8 lights up Remedy Check the wiring of the PTC thermistors PTC thermistor circuits where the red LED lights up have a resistance 3650 Ohm Cause At least one red LED of the PTC thermistor circ...

Page 9: ...t Ie for changers AC15 Ie 3 A DC13 Ie 0 2 A Recommended back up fuse max 4 A Mechanical contact life 107 operations Electrical contact life Resistive 1 x 105 AC Resistive 5 x 104 DC Testing conditions...

Page 10: ...ling 5 front panel 6 position downward 7 for fixing to wall with screws 4 2 mm 13 Disposal Disposal should be carried out properly and in an environmentally friendly manner in accordance with legal pr...

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