Multiturn position encoders, safety certified (SIL 3 / PL e)

AM... 41 SIL 3 / AM...H 41 SIL 3

AMP 41 / AMPH 41, AMPN 41 / AMPNH 41
  • Hollow shafts up to Ø 20 mm, solid shafts up to Ø 14 mm (flange or foot mounting)
  • Certified for safety applications up to SIL 3 / PL e
  • High signal quality, 13 bit singleturn, 15 bit multiturn, variety of interfaces
  • Additional incremental output
Absolute encodersIncremental encoders
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Multiturn position encoders with safety certification

The rugged multiturn position encoders AM...41 and AM...H 41 SIL 3 can be deployed in a wide variety of applications to detect position and rotational speed for integrated safety. AM...(H) 41 models fulfil the highest safety requirements and are certified to EN 61508 SIL CL3 and EN ISO 13849 PL e. The position encoders supply precise information about the position of the shaft and the number of rotations. The encoders are installed in applications that with functional safety requirements, for example, in steel and rolling mills, in mining operations as well as in ports and crane systems. Thanks in particular to the extremely rugged foot construction it is possible to easily attach additional encoders to the second shaft end.

Technical Data

Supply voltage

13-27 VDC

  • Multiturn max. 15 bit (32768 rotations)
  • Singleturn max. 13 bit (8192 steps per rotation)
Number of interfaces2
Interface/Product Name
  • PROFIsafe via PROFIBUS-DP  |  AMP 41 / AMPH 41                         
  • PROFIsafe via PROFINET IO  |  AMPN 41 / AMPNH 41
Maximum rotation
  • Solid shaft: up to 6000 rpm
  • Hollow shaft: up to 4000 rpm


Electrical connection

Fieldbus box

Construction type / Ø shafts
  • Solid shaft (B5, B35) / Ø 14 mm with feather key
  • Hollow shaft / Ø 20 mm with keyway
Device temperature range

-25 °C to +70 °C

Degree of protection

Up to IP66


Approx. 3 kg

Device options
Mechanical options

Hollow shaft devices: Torque bracket (on request)

Special features and certificates
  • EN 61508 SIL CL3 and EN ISO 13849 PL e
  • UL/CSA



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