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Security

Photocell

Infrared sensor installed on each side of the door that reverses travel if the beam is broken.

Definition

Photocells consist of an infrared emitter and receiver placed 150-200 mm above the floor, on each side of the opening. As long as the beam is continuous, the door keeps moving. As soon as it is broken (child, animal, obstacle), the door stops and reverses. It is the primary safety device required by EN 13241.

Installation height

  • Standard: 150-200 mm - detects a lying child or small animal.
  • Additional set at 500 mm possible for enhanced safety.
  • A second set can be added mid-height for low-profile cars.

Common faults

  • Misalignment: from vibration or impact.
  • Dust / cobweb: clean with soapy water every 6 months.
  • Enclosure moisture: check sealing, especially in winter.
  • IR diode failure: replace (20-year lifespan).

Related terms

Problem: door descends on its ownSupraMatic E4

Frequently asked questions

Are photocells mandatory?

Yes, for every motorised door sold in Europe since 2005 (EN 13241). A photocell-free operator would be non-compliant and expose the installer to liability in case of accident.

Security

Back to glossary

Burglar resistance RC2

European burglar-resistance class per EN 1627: holds for 3 minutes against a casual burglar with simple tools.

EI30 fire class

Fire-resistance class: the door keeps its integrity (E) and insulation (I) for 30 minutes in a fire.

A specific question?

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