Serviceline Industrial Sensors
Serviceline Explosion Protection

Incremental rotary encoder 20-2951

20-2951
  • Sturdy and compact design
  • Up to 2500 ppr
  • Rectangular design
  • 10 V ... 30 V with short-circuit proof push-pull output

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of  20-2951

General specifications
Pulse countmax. 2500
Electrical specifications
Operating voltage10 ... 30 V DC
No-load supply currentmax. 80 mA
Output
Output typepush-pull, incremental
Voltage drop< 4 V
Load currentmax. per channel 40 mA , short-circuit protected, reverse polarity protected
Output frequencymax. 160 kHz
Rise time250 ns
De-energized delay250 ns
Connection
Connectortype 9414 (M16), 5-pin
Standard conformity
Degree of protectionDIN EN 60529, IP40
Emitted interferenceEN 61000-6-4:2007/A1:2011
Noise immunityEN 61000-6-2:2005
Approvals and certificates
UL approvalcULus Listed, General Purpose, Class 2 Power Source
Ambient conditions
Operating temperature
Plastic disk-20 ... 60 °C (-4 ... 140 °F)
Storage temperature
Plastic disk-40 ... 60 °C (-40 ... 140 °F)
Mechanical specifications
Material
Housingpowder coated diecast zinc
Flangepowder coated diecast zinc
ShaftStainless steel 1.4305 / AISI 303
Massapprox. 480 g
Rotational speedmax. 3000 min -1
Moment of inertia≤ 5 gcm2
Starting torque< 0.5 Ncm
Shaft load
Axial10 N
Radial10 N

Classifications

SystemClasscode
ECLASS 13.027270501
ECLASS 12.027270501
ECLASS 11.027270501
ECLASS 10.0.127270501
ECLASS 9.027270501
ECLASS 8.027270501
ECLASS 5.127270501
ETIM 9.0EC001486
ETIM 8.0EC001486
ETIM 7.0EC001486
ETIM 6.0EC001486
ETIM 5.0EC001486
UNSPSC 12.139121527

Details: 20-2951

Function

The cuboid housing of this incremental rotary encoder is suitable for easy fastening onto mounting profiles or comparable types of construction. Four through holes and two grooves in the housing allow a wide range of installation possibilities. The diecast zinc housing gives the incremental rotary encoder the sturdiness it needs.

The pulse disk is designed in plastic up to 600 pulses. Beyond that, glass is used.

Approvals: 20-2951

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Canada, USA UL General PurposeUL-US-2233187-0 / UL-CA-2232331-0ALLPDF493 KB
Canada, USA UL General PurposeCoC E223176 RepRef E223176-20050829ALLPDF409 KB

Associated Products: 20-2951

Accessories
Spring steel coupling, Universally suitable for backlash-free rotation transmission, Highly vibration-isolating, Well misalignment compensation, Low torsion spring stiffness, Small reset forcesfa
Spring steel coupling, Universally suitable for backlash-free rotation transmission, Highly vibration-isolating, Well misalignment compensation, Low torsion spring stiffness, Small reset forcesfa
Spring disk coupling, Very high torsion spring stiffness, Suitable up to 12.000 rpm, Well misalignment compensation, Vibration- isolating, Electrically insulatingfa
Bellows coupling, Backlash-free, angle synchronous rotation transmission, Very high torsion spring stiffness, Material stainless steel and anodized aluminumfa
Helical coupling, Universally suitable for backlash-free rotation transmission, Vibration- isolating, Optimall misalignment compensation, Medium torsion spring stiffness, Small reset forcesfa
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