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Safety sensor for swing & revolving doors
Technology Active Infrared


The 4SAFE is a failsafe active infrared sensor which functions by distance measuring. Onboard of swing and revolving door leaves, it brings safety to the users by avoiding contacts with the doors in motion. The three-dimensional area of the 4SAFE makes it particularly suitable for protecting people with disabilities.



Adaptation to all floor types

Adaptation to all floor types, even the most contrasted one (stainless steel plate, grids, water puddles, snow-covered ground…)

Easy installation

Pressing the push button once is enough to adjust the sensor for the usual installation heights. Fine-tuning is easy via the 4 DIP-switches.

High user safety

High user safety thanks to a detection area of 40 cm in front of the leaf at 2 m high with 4 groups of 2 active infrared spots.

Easy daisy-chain mounting

Easy mounting with daisy-chain up to 6 modules, covering
the whole door width.

Detection field


4SAFE safety sensor for swing and revolving doors
Table of specifications


active infrared with background suppression


Emission field:

400 mm (W) x 70 mm (D) (at 2 m mounting height; 4 spots active)


Mounting height:

1.3 m to 3.5 m*


Reaction time:

64 ms (typ)


Max. presence time:



Supply voltage:

12 V - 24 V AC +/-10% ; 12 V - 30 V DC -5%/+10% (to be operated from SELV compatible power supplies only)


Max current consumption:

95 mA @ 24 V AC/ 70 mA @ 24 V DC; 170 mA @ 12 V AC/ 130 mA @ 12 V DC (MASTER)
85 mA @ 24 V AC/ 60 mA @ 24 V DC; 180 mA @ 12 V AC/ 113 mA @ 12 V DC (other modules)


Max. contact voltage
Max. contact current
Max. switching power

2 relays (free of potential contact)
42 V AC/DC
1 A (resistive)
30 W (DC) / 42 VA (AC)


Max. contact voltage:
Voltage threshold:

1 optocoupler (free of potential contact)
30 V
high: >10 V DC; low: <1 V DC


Max. number of modules:

4 (up to 6 if 24 V DC)



min. 5% at IR-wavelength of 850 nm


Degree of protection:



Temperature range:

-25 °C to +55 °C; 0-95% relative humidity, non condensing


Expected lifetime:

20 years


Norm conformity:

This product conforms to all applicable European Union legislation. Please refer to the Declaration of Conformity for further information.


Specifications are subject to changes without prior notice – Measured in specific conditions.

* max. mounting height for BS 7036-conformity (UK): 3.25 m

  • 4SAFE

    Swing door sensor with external monitoring


  • 4SAFE

    Revolving door sensor with external monitoring.


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