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Explosion-proof encoders conforming to the strictest safety standards

Flammable substances such as chemicals, gas mixtures or oil place special demands on the sensors employed. Explosion-proof rotary encoders are used in areas at risk of explosion and meet the necessary safety standards. The explosion-proof incremental rotary encoder measures the values for speed, distance travelled or acceleration by determining the difference between the reference value and the current position using an opto-electronic scanning unit.

Explosion-proof absolute rotary encoders require no initial value and can provide the downstream electronics with additional measured values such as temperature information. Depending on requirements we supply reliable explosion-proof rotary encoders with a hollow or solid shaft in standard or custom versions.

Incremental Ex rotary-encoders

Standard version

Series AWI 70 Ex & HWI 70 Ex

  • Incremental Ex-rotary-encoder with 10, 12 or 14mm solid- or blind hollow shaft
  • Housingdiameter 70 mm for design type "Pressurised encapsulation" and high degree of protection
  • With Ex d IIC T6 (PTB 09 ATEX 1106 X)
  • Maximum 5.000 pulses / revolution
  • Short-circuit-proof outputs
  • Overvoltage and reverse polarity protection on the operating voltage input (at Ub= 10-30V DC)
Ex-Encoder Series AWI 70 Ex & HWI 70 Ex - PDF Download ATEX-certificate Series AWI 70 Ex - PDF Download ATEX-certificate Series HWI 70 Ex - PDF Download IECEx-certificate Series AWI 70 Ex & HWI 70 Ex - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series AWI 70 Ex & HWI 70 Ex from Hohner Elektrotechnik GmbH in Germany

Intrisically Safe Ex ia IIC / IIB Zone 0, Class 1 Div 1

Series H

  • Incremantal Ex-rotary-encoder with a solid shaft diameter of 6, 10 or 12mm
  • Housing diameter 58mm, robust design and high degree of protection
  • Maximum 5.000 pulses / revolution
  • For highest industrial requirements

Ex-Encoder Series H - PDF Download ATEX-certificate Series H - PDF Download IECEx-certificate Series H - PDF Download CSA-certificate Series H - PDF Download GOST-certificate Series H - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series H from Hohner Elektrotechnik GmbH in Germany

Series NAMYQX

  • Incremantal Ex-rotary-encoder with a solid shaft diameter of 10 or 12mm, square flange and NAMUR output
  • Housing diameter 63,5mm, extrem robust design and high degree of protection
  • Maximum 512 pulses / revolution
  • For highest industrial requirements
  • Also available as 5-24V Line Driver version
  • Completely in stainless steel
Ex-Encoder Series NAMYQX - PDF Download ATEX-certificate Series NAMYQX - PDF Download IECEx-certificate Series NAMYQX - PDF Download CSA-certificate Series NAMYQX - PDF Download GOST-certificate Series NAMYQX - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series NAMYQX from Hohner Elektrotechnik GmbH in Germany

Series W

  • Incremantal Ex-rotary-encoder with a solid shaft diameter of 6, 10 or 12mm
  • Housing diameter 70mm, robust design and high degree of protection
  • Maximum 5.000 pulses / revolution
  • For highest industrial requirements
Ex-Encoder Series W - PDF Download ATEX-certificate Series W - PDF Download IECEx-certificate Series W - PDF Download CSA-certificate Series W - PDF Download GOST-certificate Series W - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series W from Hohner Elektrotechnik GmbH in Germany

Series 3000

  • Incremantal Ex-rotary-encoder with a solid shaft diameter of 12mm and NAMUR output
  • Housing diameter 90mm, robust design and high degree of protection
  • Maximum 512 pulses / revolution
  • For highest industrial requirements
  • Also available as 5-24V Line Driver version
Ex-Encoder Series 3000 - PDF Download ATEX-certificate Series 3000 - PDF Download IECEx-certificate Series 3000 - PDF Download CSA-certificate Series 3000 - PDF Download GOST-certificate Series 3000 - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series 3000 from Hohner Elektrotechnik GmbH in Germany

Series IP 3000

  • Incremantal Ex-rotary-encoder with a solid shaft diameter of 12mm
  • Housing diameter 90mm, robust design and high degree of protection up to IP66
  • Maximum 5.000 pulses / revolution
  • For highest industrial requirements
Ex-Encoder Series IP 3000 - PDF Download ATEX-certificate Series IP 3000 - PDF Download IECEx-certificate Series IP 3000 - PDF Download CSA-certificate Series IP 3000 - PDF Download GOST-certificate Series IP 3000 - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series IP 3000 from Hohner Elektrotechnik GmbH in Germany

Series 3000

  • Incremantal Ex-rotary-encoder with a solid shaft diameter of 12mm
  • Housing diameter 90mm, robust design and high degree of protection
  • Maximum 5.000 pulses / revolution
  • For highest industrial requirements
Ex-Encoder Series 3000 - PDF Download ATEX-certificate Series 3000 - PDF Download IECEx-certificate Series 3000 - PDF Download CSA-certificate Series 3000 - PDF Download GOST-certificate Series 3000 - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series 3000 from Hohner Elektrotechnik GmbH in Germany

Series 07x

  • Incremental Ex-rotary-encoder with a hollow shaft diameter of 10 or 12mm, plastic housing and NAMUR output
  • Housing diameter 52mm, simple design and normal degree of protection
  • Maximum 100 pulses / revolution
  • For highest industrial requirements
  • Also available as 5-24V Line Driver version
Ex-Encoder Series 07x - PDF Download ATEX-certificate Series 07x - PDF Download IECEx-certificate Series 07x - PDF Download CSA-certificate Series 07x - PDF Download GOST-certificate Series 07x - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series 07 x from Hohner Elektrotechnik GmbH in Germany

Series 55

  • Incremental Ex-rotary-encoder with a hollow shaft diameter of 10-20mm and NAMUR output
  • Housing diameter 67mm, robust design and high degree of protection
  • Maximum 512 pulses / revolution
  • For highest industrial requirements
  • Also available as 5-24V Line Driver version
Ex-Encoder Series 55 - PDF Download ATEX-certificate Series 55 - PDF Download IECEx-certificate Series 55 - PDF Download CSA-certificate Series 55 - PDF Download GOST-certificate Series 55 - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series 55 from Hohner Elektrotechnik GmbH in Germany

Series 85

  • Incremental Ex-rotary-encoder with a hollow shaft diameter of 10-20mm
  • Housing diameter 67mm, robust design and high degree of protection
  • Maximum 1.500 pulses / revolution
  • For highest industrial requirements
Ex-Encoder Series 85 - PDF Download ATEX-certificate Series 85 - PDF Download IECEx-certificate Series 85 - PDF Download CSA-certificate Series 85 - PDF Download GOST-certificate Series 85 - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series 85 from Hohner Elektrotechnik GmbH in Germany

Series 08

  • Incremental Ex-rotary-encoder with a hollow shaft diameter of 8, 10 or 12mm and NAMUR output
  • Housing diameter 72mm, extrem robust design and high degree of protection
  • Maximum 512 pulses / revolution
  • For highest industrial requirements
  • Also available as 5-24V Line Driver version
  • Completely in stainless steel
Ex-Encoder Series 08 - PDF Download ATEX-certificate Series 08 - PDF Download IECEx-certificate Series 08 - PDF Download CSA-certificate Series 08 - PDF Download GOST-certificate Series 08 - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series 08 from Hohner Elektrotechnik GmbH in Germany

Series NAMFPX

  • Incremental Ex-rotary-encoder with a hollow shaft diameter of 14-30mm and NAMUR output
  • Housing diameter 102mm, robust design and high degree of protection
  • Maximum 512 pulses / revolution
  • For highest industrial requirements
  • Also available as 5-24V Line Driver version
Ex-Encoder Series NAMFPX - PDF Download ATEX-certificate Series NAMFPX - PDF Download IECEx-certificate Series NAMFPX - PDF Download CSA-certificate Series NAMFPX - PDF Download GOST-certificate Series NAMFPX - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series NAMFPX from Hohner Elektrotechnik GmbH in Germany

Series NAMFPX

  • Incremental Ex-rotary-encoder with a special threaded shaft and NAMUR output
  • Housing diameter 102mm, robust design and high degree of protection
  • Maximum 512 pulses / revolution
  • For highest industrial requirements
  • Also available as 5-24V Line Driver version
Ex-Encoder Series NAMFPX - PDF Download ATEX-certificate Series NAMFPX - PDF Download IECEx-certificate Series NAMFPX - PDF Download CSA-certificate Series NAMFPX - PDF Download GOST-certificate Series NAMFPX - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series NAMFPX from Hohner Elektrotechnik GmbH in Germany

Series 14

  • Incremental Ex-rotary-encoder with a hollow shaft diameter of 25-40mm and NAMUR output
  • Housing diameter 110mm, robust design and high degree of protection
  • Maximum 512 pulses / revolution
  • For highest industrial requirements
  • Also available as 5-24V Line Driver version
Ex-Encoder Series 14 - PDF Download ATEX-certificate Series 14 - PDF Download IECEx-certificate Series 14 - PDF Download CSA-certificate Series 14 - PDF Download GOST-certificate Series 14 - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series 14 from Hohner Elektrotechnik GmbH in Germany

Series NAMFPX

  • Incremental Ex-rotary-encoder with a hollow shaft diameter of 40-50mm and NAMUR output
  • Housing diameter 114mm, robust design and high degree of protection
  • Maximum 512 pulses / revolution
  • For highest industrial requirements
  • Also available as 5-24V Line Driver version
Ex-Encoder Series NAMFPX - PDF Download ATEX-certificate Series NAMFPX - PDF Download IECEx-certificate Series NAMFPX - PDF Download CSA-certificate Series NAMFPX - PDF Download GOST-certificate Series NAMFPX - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series NAMFPX from Hohner Elektrotechnik GmbH in Germany

Explosion Proof Ex d IIC Zone 1, Class 1 / Class 2 Div 1

Series RXE

  • Incremental Ex-rotary encoder with a solid shaft diameter of 12mm
  • Housing diameter 72mm, extrem robust design and high degree of protection up to IP67
  • Maximum 5.000 pulses / revolution
  • For highest industrial requirements
  • Completely in stainless steel
Ex-Encoder Series RXE - PDF Download ATEX-certificate Series RXE - PDF Download IECEx-certificate Series RXE - PDF Download CSA-certificate Series RXE - PDF Download GOST-certificate Series RXE - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series RXE from Hohner Elektrotechnik GmbH in Germany

Series RXL

  • Incremental Ex-rotary encoder with a solid shaft diameter of 12mm
  • Housing diameter 72mm, extrem robust design and high degree of protection up to IP67
  • Maximum 5.000 pulses / revolution
  • For highest industrial requirements
  • Completely in stainless steel
  • Working temperature range down to -40°C
Ex-Encoder Series RXL - PDF Download ATEX-certificate Series RXL - PDF Download IECEx-certificate Series RXL - PDF Download CSA-certificate Series RXL - PDF Download GOST-certificate Series RXL - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series RXL from Hohner Elektrotechnik GmbH in Germany

Series MXE

  • Incremental Ex-rotary encoder with a solid shaft diameter of 12mm
  • Housing diameter 82mm, extrem robust design and high degree of protection up to IP67
  • Maximum 5.000 pulses / revolution
  • For highest industrial requirements
  • Completely in stainless steel
Ex-Encoder Series MXE - PDF Download ATEX-certificate Series MXE- PDF Download IECEx-certificate Series MXE - PDF Download CSA-certificate Series MXE - PDF Download GOST-certificate Series MXE - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series MXE from Hohner Elektrotechnik GmbH in Germany

Series MXL

  • Incremental Ex-rotary encoder with a solid shaft diameter of 12mm
  • Housing diameter 82mm, extrem robust design and high degree of protection up to IP67
  • Maximum 5.000 pulses / revolution
  • For highest industrial requirements
  • Completely in stainless steel
  • Working temperature range down to -40°C
Ex-Encoder Series MXL - PDF Download ATEX-certificate Series MXL - PDF Download IECEx-certificate Series MXL - PDF Download CSA-certificate Series MXL - PDF Download GOST-certificate Series MXL - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series MXL from Hohner Elektrotechnik GmbH in Germany

Series DXE

  • Incremental Ex-rotary encoder with a solid shaft diameter of 12mm
  • Housing diameter 90mm, extrem robust design and high degree of protection up to IP67
  • Maximum 5.000 pulses / revolution
  • For highest industrial requirements
  • Completely in stainless steel
Ex-Encoder Series DXE - PDF Download ATEX-certificate Series DXE - PDF Download IECEx-certificate Series DXE - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series DXE from Hohner Elektrotechnik GmbH in Germany

Series DXL

  • Incremental Ex-rotary encoder with a solid shaft diameter of 12mm
  • Housing diameter 90mm, extrem robust design and high degree of protection up to IP67
  • Maximum 5.000 pulses / revolution
  • For highest industrial requirements
  • Completely in stainless steel
  • Working temperature range down to -40°C
Ex-Encoder Series DXL - PDF Download ATEX-certificate Series DXL - PDF Download IECEx-certificate Series DXL - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series DXL from Hohner Elektrotechnik GmbH in Germany

Series TXE

  • Incremental Ex-rotary encoder with a solid shaft diameter of 11 or 12mm
  • Housing diameter 90mm, extrem robust design and high degree of protection up to IP67
  • Maximum 5.000 pulses / revolution
  • For highest industrial requirements
  • Completely in stainless steel
  • Accessible by terminal block
Ex-Encoder Series TXE - PDF Download ATEX-certificate Series TXE - PDF Download IECEx-certificate Series TXE - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series TXE from Hohner Elektrotechnik GmbH in Germany

Series TXL

  • Incremental Ex-rotary encoder with a solid shaft diameter of 11 or 12mm
  • Housing diameter 90mm, extrem robust design and high degree of protection up to IP67
  • Maximum 5.000 pulses / revolution
  • For highest industrial requirements
  • Completely in stainless steel
  • Accessible by terminal block
  • Working temperature range down to -40°C
Ex-Encoder Series TXL - PDF Download ATEX-certificate Series TXL - PDF Download IECEx-certificate Series TXL - PDF Download Accessories
Illustration of an Ex- incremental rotary-encoder of the series TXL from Hohner Elektrotechnik GmbH in Germany

Absolute Ex rotary-encoders with parallel- and SSI interface

Standard version

Series AWA 70 Ex & HWA 70 Ex

  • Absolute Ex-rotary-encoder with 10, 12 or 14mm solid- or blind hollow shaft and SSI interface
  • Housingdiameter 70 mm for design type "Pressurised encapsulation" and high degree of protection
  • With Ex d IIC T6 (PTB 09 ATEX 1106 X)
  • Maximum resolution 13 Bit
  • Short-circuit-proof outputs
  • Overvoltage and reverse polarity protection on the operating voltage input (at Ub= 10-30V DC)
Ex-Encoder Series AWA 70 Ex & HWA 70 Ex - PDF Download ATEX-certificate Series AWA 70 Ex - PDF Download ATEX-certificate Series HWA 70 Ex - PDF Download IECEx-certificate Series AWA 70 Ex & HWA 70 Ex - PDF Download Accessories
Illustration of an Ex- absolute rotary-encoder of the series AWA 70 Ex & HWA 70 Ex from Hohner Elektrotechnik GmbH in Germany

Explosion Proof Ex d IIC Zone 1, Class 1 / Class 2 Div 1

Series CSRXE

  • Absolute Ex-rotary encoder with a solid shaft diameter of 12mm and parallel output
  • Housing diameter 72mm, extrem robust design and high degree of protection up to IP67
  • Maximum resolution 12 Bit
  • For highest industrial requirements
  • Completely in stainless steel

Ex-Encoder Series CSRXE - PDF Download ATEX-certificate Series CSRXE - PDF Download IECEx-certificate Series CSRXE - PDF Download CSA-certificate Series CSRXE - PDF Download GOST-certificate Series CSRXE - PDF Download Accessories
Illustration of an Ex- absolute rotary-encoder of the series CSRXE from Hohner Elektrotechnik GmbH in Germany

Series CSMXE

  • Absolute Ex-rotary encoder with a solid shaft diameter of 12mm and parallel output
  • Housing diameter 82mm, extrem robust design and high degree of protection up to IP67
  • Maximum resolution 12 Bit
  • For highest industrial requirements
  • Completely in stainless steel
Ex-Encoder Series CSMXE - PDF Download ATEX-certificate Series CSMXE - PDF Download IECEx-certificate Series CSMXE - PDF Download CSA-certificate Series CSMXE - PDF Download GOST-certificate Series CSMXE - PDF Download Accessories
Illustration of an Ex- absolute rotary-encoder of the series CSMXE from Hohner Elektrotechnik GmbH in Germany

Series CMMXE

  • Absolute multiturn Ex-rotary encoder with a solid shaft diameter of 12mm and parallel output
  • Housing diameter 82mm, extrem robust design and high degree of protection up to IP67
  • Maximum resolution 24 Bit
  • For highest industrial requirements
  • Completely in stainless steel
Ex-Encoder Series CMMXE - PDF Download ATEX-certificate Series CMMXE - PDF Download IECEx-certificate Series CMMXE- PDF Download CSA-certificate Series CMMXE - PDF Download GOST-certificate Series CMMXE - PDF Download Accessories
Illustration of an Ex- absolute rotary-encoder of the series CMMXE from Hohner Elektrotechnik GmbH in Germany

Series CSMXE

  • Absolute Ex-rotary encoder with a solid shaft diameter of 12mm and SSI output
  • Housing diameter 82mm, extrem robust design and high degree of protection up to IP67
  • Maximum resolution 12 Bit
  • For highest industrial requirements
  • Completely in stainless steel
Ex-Encoder Series CSMXE - PDF Download ATEX-certificate Series CSMXE - PDF Download IECEx-certificate Series CSMXE- PDF Download CSA-certificate Series CSMXE - PDF Download GOST-certificate Series CSMXE - PDF Download Accessories
Illustration of an Ex- absolute rotary-encoder of the series CSMXE from Hohner Elektrotechnik GmbH in Germany

Series CMMXE

  • Absolute multiturn Ex-rotary encoder with a solid shaft diameter of 12mm and SSI output
  • Housing diameter 82mm, extrem robust design and high degree of protection up to IP67
  • Maximum resolution 24 Bit
  • For highest industrial requirements
  • Completely in stainless steel
Ex-Encoder Series CMMXE - PDF Download ATEX-certificate Series CMMXE - PDF Download IECEx-certificate Series CMMXE - PDF Download CSA-certificate Series CMMXE - PDF Download GOST-certificate Series CMMXE - PDF Download Accessories
Illustration of an Ex- absolute rotary-encoder of the series CMMXE from Hohner Elektrotechnik GmbH in Germany

Series CSDXE

  • Absolute Ex-rotary encoder with a solid shaft diameter of 12mm solid shaft and parallel output
  • Housing diameter 90mm, extrem robust design and high degree of protection up to IP67
  • Maximum resolution 12 Bit
  • For highest industrial requirements
  • Completely in stainless steel
Ex-Encoder Series CSDXE - PDF Download ATEX-certificate Series CSDXE - PDF Download IECEx-certificate Series CSDXE - PDF Download Accessories
Illustration of an Ex- absolute rotary-encoder of the series CSDXE from Hohner Elektrotechnik GmbH in Germany

Series CMDXE

  • Absolute multiturn Ex-rotary encoder with a solid shaft diameter of 12mm and parallel output
  • Housing diameter 90mm, extrem robust design and high degree of protection up to IP67
  • Maximum resolution 24 Bit
  • For highest industrial requirements
  • Completely in stainless steel
Ex-Encoder Series CMDXE - PDF Download ATEX-certificate Series CMDXE - PDF Download IECEx-certificate Series CMDXE - PDF Download Accessories
Illustration of an Ex- absolute rotary-encoder of the series CMDXE from Hohner Elektrotechnik GmbH in Germany

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