Hengstler RI41-O incremental rotary encoders offer exceptional performance in industrial applications where reliability and high pulse frequencies are necessary and competitive pricing is a priority.

Hengstler RI41 incremental encoders are economical; the 40mm diameter aluminium housing ensures it is light yet robust, equally suited to industrial or light-duty applications.

Mounting options are pilot flange with resolutions of up to 3,600 pulses, available with a shaft diameter size of 6mm and shaft protection class ratings of up to IP40.

Cable outlets are radial only; the standard cable length is 1.5 metres, producing the RI41 encoder with additional cable lengths is possible.

The supply voltage is 5V or 10 to 30V DC; output signals are push-pull.

Encoders are RoHS-compliant, UL-approved, and CE-marked.

Part Numbers Show…

0521118 | RI41-O/1000AR.11DB | 0521031 | RI41-O/1000AR.11DB-A4 | 0521610 | RI41-O/1000AR.11DB-D0 | 0521369 | RI41-O/1000AR.11DB-F0 | 0521893 | RI41-O/1000AR.11DX-A4-S | 0521081 | RI41-O/1000AR.11KB | 0521883 | RI41-O/1000AR.11KX-S | 0521803 | RI41-O/1000AR.11TX-S | 0521800 | RI41-O/1000ER.11IX-S | 0521074 | RI41-O/1000ER.11KB | 0521377 | RI41-O/1000ER.11KB-D0 | 0521526 | RI41-O/1000ER.11KB-F0 | 0521699 | RI41-O/1000ER.11KB-K0 | 0521605 | RI41-O/1000ER.11KB-P0 | 0521328 | RI41-O/1000ER.21KB | 0521144 | RI41-O/100AR.11DB | 0521131 | RI41-O/100AR.11DB-F0 | 0521145 | RI41-O/100AR.11KB | 0528012 | RI41-O/100AR.11KB-D0 | 0521828 | RI41-O/100AR.11KX-S | 0521811 | RI41-O/100AR.11TX-B5-S | 0521812 | RI41-O/100AR.11TX-S | 0521044 | RI41-O/100ER.11KB | 0521375 | RI41-O/100ER.11KB-F0 | 0521642 | RI41-O/100ER.11KB-K0 | 0521189 | RI41-O/1024AR.11DB | 0528064 | RI41-O/1024AR.11DB-F0 | 0521219 | RI41-O/1024AR.11KB | 0521621 | RI41-O/1024AR.11KB-F0 | 0521835 | RI41-O/1024AR.11KX-S | 0521848 | RI41-O/1024AR.11TX-F0-S | 0521817 | RI41-O/1024AR.11TX-V0-S | 0521417 | RI41-O/1024ER.11KB | 0528113 | RI41-O/1024ER.11KB-K0 | 0521660 | RI41-O/10AR.11DB | 0521356 | RI41-O/10AR.11KB | 0521051 | RI41-O/10ER.11KB | 0521653 | RI41-O/1250AR.11DB | 0521833 | RI41-O/1250AR.11KX-S | 0521846 | RI41-O/1250AR.11TX-S | 0521059 | RI41-O/1250ER.11KB | 0521043 | RI41-O/128ER.11KB | 0521816 | RI41-O/128ER.11KB-A3-S | 0528092 | RI41-O/128ER.11KB-D0 | 0528094 | RI41-O/1500AR.11DB | 0521467 | RI41-O/1500AR.11KB | 0521887 | RI41-O/1500AR.11KX-S | 0521802 | RI41-O/1500AR.11TX-S | 0521801 | RI41-O/1500ER.11IX-S | 0521216 | RI41-O/1500ER.11KB | 0521684 | RI41-O/1500ER.11KB-F0 | 0521884 | RI41-O/1500ER.11KX-S | 0521341 | RI41-O/2000AR.11DB | 0521892 | RI41-O/2000AR.11DX-A4-S | 0521614 | RI41-O/2000AR.11KB | 0521483 | RI41-O/2000AR.11KB-K0 | 0521830 | RI41-O/2000AR.11KX-S | 0521206 | RI41-O/2000ER.11KB | 0521542 | RI41-O/2000ER.11KB-D0 | 0521348 | RI41-O/2000ER.11KB-F0 | 0521362 | RI41-O/2000ER.11KB-K0 | 0521113 | RI41-O/200AR.11DB | 0521299 | RI41-O/200AR.11DB-F0 | 0521078 | RI41-O/200AR.11KB | 0528002 | RI41-O/200AR.11KB-D0 | 0521880 | RI41-O/200AR.11KX-S | 0521058 | RI41-O/200ER.11KB | 0528078 | RI41-O/200ER.11KB-C0 | 0521244 | RI41-O/200ER.11KB-D0 | 0521404 | RI41-O/200ER.11KB-F0 | 0521188 | RI41-O/2048AR.11DB | 0521446 | RI41-O/2048AR.11KB | 0521834 | RI41-O/2048AR.11KX-S | 0521316 | RI41-O/2048ER.11KB | 0521515 | RI41-O/2048ER.11KB-F0 | 0521056 | RI41-O/20ER.11KB | 0521127 | RI41-O/20ER.11KB-D0 | 0521514 | RI41-O/20ER.11KB-F0 | 0521163 | RI41-O/2500AR.11DB | 0521263 | RI41-O/2500AR.11KB | 0521882 | RI41-O/2500AR.11KX-S | 0521798 | RI41-O/2500AR.11TX-S | 0521799 | RI41-O/2500ER.11IX-S | 0521093 | RI41-O/2500ER.11KB | 0521335 | RI41-O/2500ER.11KB-F0 | 0521535 | RI41-O/2500ER.11KB-U0 | 0521040 | RI41-O/250AR.11KB | 0521822 | RI41-O/250AR.11KX-S | 0521797 | RI41-O/250AR.11TX-F0-S | 0521048 | RI41-O/250ER.11KB | 0521229 | RI41-O/250ER.11KB-I0 | 0521805 | RI41-O/250ER.11KB-S | 0521669 | RI41-O/25AR.11DB | 0521306 | RI41-O/25AR.11KB | 0528013 | RI41-O/25AR.11KB-D0 | 0521057 | RI41-O/25ER.11KB | 0521237 | RI41-O/288ER.11KB-F0 | 0521871 | RI41-O/288ER.11KX-F0-S | 0521396 | RI41-O/28ER.11KB | 0521013 | RI41-O/28ER.11KB-E0 | 0521645 | RI41-O/3000AR.11DB | 0521276 | RI41-O/3000AR.11KB | 0521888 | RI41-O/3000AR.11KX-S | 0521303 | RI41-O/3000AR.21KB | 0521217 | RI41-O/3000ER.11KB | 0528006 | RI41-O/3000ER.11KB-F0 | 0528017 | RI41-O/3000ER.11KB-K0 | 0521520 | RI41-O/300AR.11KB-F0 | 0521886 | RI41-O/300AR.11KX-S | 0521214 | RI41-O/300ER.11KB | 0521403 | RI41-O/30ER.11KB | 0528139 | RI41-O/30ER.11KB-F0 | 0521166 | RI41-O/3600AR.11DB | 0528107 | RI41-O/3600AR.11DB-K0 | 0521097 | RI41-O/3600AR.11KB | 0521586 | RI41-O/3600AR.11KB-D0 | 0528105 | RI41-O/3600AR.11KB-K0 | 0521889 | RI41-O/3600AR.11KX-S | 0521847 | RI41-O/3600AR.11TX-F0-S | 0521088 | RI41-O/3600ER.11KB | 0528058 | RI41-O/3600ER.11KB-D0 | 0521419 | RI41-O/3600ER.11KB-F0 | 0528155 | RI41-O/3600ER.11KB-K0 | 0521826 | RI41-O/3600EX.31KB-F0-S | 0521124 | RI41-O/360AR.11DB | 0521075 | RI41-O/360AR.11KB | 0521840 | RI41-O/360AR.11KX-S | 0521870 | RI41-O/360AX.21KB-F0-S | 0521037 | RI41-O/360ER.11KB | 0521809 | RI41-O/360ER.11KB-A3-S | 0521521 | RI41-O/360ER.11KB-E0 | 0521108 | RI41-O/360ER.11KB-F0 | 0521646 | RI41-O/360ER.11KB-K0 | 0528052 | RI41-O/360ER.11KB-P0 | 0521859 | RI41-O/360EX.21KB-F0-S | 0521863 | RI41-O/360EX.31KB-F0-S | 0521796 | RI41-O/360EX.31KB-H0-S | 0521861 | RI41-O/360EX.31KB-K0-S | 0521210 | RI41-O/400AR.11DB | 0521220 | RI41-O/400ER.11KB | 0521506 | RI41-O/400ER.11KB-D0 | 0528053 | RI41-O/400ER.11KB-F0 | 0521060 | RI41-O/500AR.11DB | 0521164 | RI41-O/500AR.11DB-E0 | 0521079 | RI41-O/500AR.11KB | 0521334 | RI41-O/500AR.11KB-F0 | 0521829 | RI41-O/500AR.11KX-S | 0521062 | RI41-O/500ER.11KB | 0521524 | RI41-O/500ER.11KB-D0 | 0521682 | RI41-O/500ER.11KB-F0 | 0521170 | RI41-O/500ER.11KB-K0 | 0528110 | RI41-O/500ER.11KB-P0 | 0521685 | RI41-O/50AR.11DB | 0521429 | RI41-O/50AR.11DB-D0 | 0521077 | RI41-O/50AR.11KB | 0528014 | RI41-O/50AR.11KB-D0 | 0528102 | RI41-O/50AR.11KB-F0 | 0521035 | RI41-O/50ER.11KB | 0521264 | RI41-O/50ER.11KB-D0 | 0521266 | RI41-O/50ER.11KB-F0 | 0521418 | RI41-O/512AR.11DB | 0521383 | RI41-O/512ER.11KB | 0521241 | RI41-O/5ER.11KB | 0528148 | RI41-O/5ER.11KB-F0 | 0528023 | RI41-O/5ER.11KB-K0 | 0528153 | RI41-O/600AR.11DB | 0521042 | RI41-O/600AR.11KB | 0521082 | RI41-O/600ER.11KB | 0521371 | RI41-O/600ER.11KB-D0 | 0521454 | RI41-O/60AR.11DB | 0521310 | RI41-O/60AR.11KB | 0521080 | RI41-O/60ER.11KB | 0528068 | RI41-O/60ER.11KB-D0 | 0521683 | RI41-O/60ER.11KB-F0 | 0521171 | RI41-O/60ER.11KB-K0 | 0521832 | RI41-O/60EX.11KB-D0-S | 0521408 | RI41-O/720AR.11KB | 0521215 | RI41-O/720ER.11KB | 0521174 | RI41-O/900AR.11KB | 0521076 | RI41-O/900ER.11KB