Ambient conditions and protection classification

Classification as per EN 60730

Automatic action

Control function

Degree of pollution

Overvoltage category


Type 1

Class A



Protection against electric shock

Suitable for use in protection class I or II systems

Degree of protection of housing to EN 60529

Front parts in DIN cut-out

Terminal part




Climatic ambient conditions

  • Storage / Transport (packaged for transport) as per IEC EN 60721-3-1 / IEC EN 60721‑3‑2
  • Operation as per IEC/EN 60721-3-3



  • Class 1K22 / 2K12
    Temperature -25...70 °C (-13...158 °F)
    Air humidity 5...95 % (non-condensing)
  • Class 3K23
    Operation in enclosed dry locations, having no temperature or humidity control
    Temperature -5...50 °C (23...122 °F)
    (for details see chapter Mounting)
    Air humidity 5...95 % (non-condensing)

Mechanical ambient conditions

  • Transport per IEC/EN 60721-3-2
  • Operation as per IEC/EN 60721-3-3


  • Class 2M4
  • Class 3M11


Standards, directives and approvals

Product standard

IEC/EN 60730-1

Product family standards

IEC/EN 63044-x

Electromagnetic compatibility (EMC)

For residential, commercial, and
industrial environments

EU conformity (CE)

See CE declaration 1)

UK conformity (UKCA)

See UK declaration 1)

EAC compliance

Eurasian compliance

RCM conformity

See RCM declaration 1)

UL/cUL certification (US / Canada)


CSA certification



CFR 47 Part 15C

BACnet device profile


Seismic certification

Product meets Seismic Preapproval certification HCAI OSP: (OSP-0217 ) under California Building Code 2010 (CBC2010) and International Building Code 2009 (IBC2009) when installed within the following Siemens enclosure part numbers: PXA-ENC18, PXA-ENC19, or PXA-ENC34.

Environmental compatibility 1)

The product environmental declaration 1) contains data on environmentally compatible product design and assessments (RoHS compliance, materials composition, packaging, environmental benefit, disposal).

1) Documents can be downloaded at