Serviceline Industrial Sensors
Serviceline Explosion Protection

Incremental rotary encoder MNI40N

  • Clear function verification via two-color LEDs (red/green)
  • Simple installation and adjustment using assistance functions reduce costs
  • Self-diagnostics including the magnetic wheel provide quality assurance
  • Internal intelligence provides easy setup and reliable operation
  • The elastomer coating of the magnetic wheel provides resistance to dirt as well as thermal and mechanical shock
  • Long service life at high speeds and temperatures

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of MNI40N

Product Description
Magnetic, Non Contact
General specifications
Detection typemagnetic sampling
Pulse countmax. 7200
UL File NumberE223176 "For use in NFPA 79 Applications only" , if UL marking is marked on the product.
Functional safety related parameters
MTTFd942 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Indicators/operating means
LED red/greenOperating display / Alignment aid
Electrical specifications
Operating voltage10 ... 30 V DC
5 V DC for RS-422
No-load supply currentmax. 55 mA
Output typepush-pull, incremental or RS-422, incremental
Voltage drop< 2.5 V
Load currentmax. per channel 30 mA , short-circuit protected (max. per channel 20 mA, conditionally short-circuit proof)
Output frequencymax. 1 MHz
Cable∅4,7 mm, 4 x 2 x 0,128 mm2
connection with plug M12, 8-pin, L = 0.3 m
Standard conformity
Degree of protectionDIN EN 60529, IP67 , IP68 , IP69K
Climatic testingDIN EN 60068-2-30
Emitted interferenceEN 61000-6-4:2007/A1:2011
Noise immunityEN 61000-6-2:2005
Shock resistanceDIN EN 60068-2-27, 200 g, 6 ms
Vibration resistanceDIN EN 60068-2-6, 40 g, 10 ... 2000 Hz
Approvals and certificates
UL approvalcULus Listed, General Purpose, Class 2 Power Source, Type 1 enclosure , if UL marking is marked on the product.
adapters providing field wiring on request
Maximum permissible ambient temperaturemax. 75 °C (max. 167 °F)
Ambient conditions
Operating temperature-40 ... 100 °C (-40 ... 212 °F)
Storage temperature-40 ... 100 °C (-40 ... 212 °F)
Mechanical specifications
Magnetic wheelsteel 1.4021 (AISI 420)
ferrite filled cured rubber
Massapprox. 190 g
Rotational speedmax. 30000 min -1

Documents: MNI40N

Instruction leafletsLanguageFile TypeFile Size
Instruction leaflet / Beipackzettel ALLPDF986 KB


CADFile TypeFile Size
CAD Portal / CAD PortalLINK---

Approvals+Certificates: MNI40N

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-3933PDF78 KB
CA UL General PurposeE223176LINK---
US UL General PurposeE223176LINK---