At a glance
- Technology
- Passive infrared (PIR), 12 Fresnel lenses with zoom
- Mounting Height
- Recommended max. 3.5 m
- Detection Range
- Frontal max. 12 m
- Supply Voltage
- 12 to 24 V AC (-0 %/+15 %), 50/60 Hz
- IP Rating
- IP52 (IEC 60529)
- Relay Contact Rating
- Max. 48 V AC/DC, 0.5 A AC / 1 A DC, 60 VA / 30 W
Model PIR 20/31Current modelBircher PIR 20 Passive Infrared Motion Sensor for Doors
Price on request
At a glance
- Technology
- Passive infrared (PIR), 12 Fresnel lenses with zoom
- Mounting Height
- Recommended max. 3.5 m
- Detection Range
- Frontal max. 12 m
- Supply Voltage
- 12 to 24 V AC (-0 %/+15 %), 50/60 Hz
- IP Rating
- IP52 (IEC 60529)
- Relay Contact Rating
- Max. 48 V AC/DC, 0.5 A AC / 1 A DC, 60 VA / 30 W
Compact motion sensor that opens small pedestrian or revolving doors and starts escalators or lifts as people approach. Passive infrared with 12 lenses and zoom, up to 12 m frontal range, surface or recessed mounting up to 3.5 m high.
Part of the Bircher PIR series. Compare both models
Include the required quantity and configuration in your quote request. Price and availability will be confirmed in the quotation.
- WarrantyManufacturer warranty under Bircher's terms. Warranty claims
- DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery
Overview
What it is
PIR 20 is a PIR (passive infrared) motion detector. It contains pyroelectric sensors that react to the infrared radiation of people moving through its field, and 12 Fresnel lenses built into the cover.
What it is used for
Bircher recommends PIR 20 for opening small pedestrian doors, for revolving doors and for activating escalators or lifts. The compact housing can be surface mounted or recessed into a transom or panel.
Key features
- 12 Fresnel lenses with a zoom screw for field adjustment
- Lens diaphragms that can be broken out or cut to shape the field
- Potentiometer for the temperature threshold (sensitivity)
- Potential-free changeover relay with NO/NC selection by internal switch
- Frontal range up to 12 m, recommended mounting height up to 3.5 m
Buying considerations
Passive infrared detection needs a temperature difference between person and background, so performance depends on site conditions. Article 212657 is the relay version in black. The scope of delivery includes two integration brackets, a swivel bracket, two lens diaphragms and adhesive strips.
Installation considerations
The detector is IP52. An IP65 protective cover and a recessed mounting frame are available as accessories. Operating temperature range is -40 to +60 °C.
Compatibility
Supply 12 to 24 V AC or 12 to 30 V DC. The relay switches up to 48 V AC/DC with 0.5 A AC / 1 A DC and connects through plug-in screw terminals to standard door controller inputs.
Features
In use
Bircher recommends PIR 20 for opening small pedestrian doors, for revolving doors and for activating escalators or lifts. The compact housing can be surface mounted or recessed into a transom or panel.
Size and fit
- Mounting Height
- Recommended max. 3.5 m
- Dimensions
- 99 x 62 x 29 mm
- Weight
- Approx. 40 g without cable
Technical specifications
Key facts
- What is it?
- Door Activation & Safety SensorsBrand Bircher, model PIR 20/31
- What is it used for?
- Opening small pedestrian doors, revolving doors, escalator and lift activation
- How is it powered?
- 12 to 24 V AC (-0 %/+15 %), 50/60 Hz
- Can it be used outdoors?
- IP52
- Which documents are available?
- Brochure, certificate Open documents
- Can SecurityGearHub help with installation?
- Setup guidanceManuals, wiring guides and answers to setup questions. On-site work is arranged separately where available. Ask about installation
- Not stated by the manufacturer
- box contents
RelatedSeriesBircher PIR series, 2 modelsDocumentsAll Bircher documents
General
- Technology
- Passive infrared (PIR), 12 Fresnel lenses with zoom
- Application
- Opening small pedestrian doors, revolving doors, escalator and lift activation
- Detection Range
- Frontal max. 12 m
- Relay Contact Rating
- Max. 48 V AC/DC, 0.5 A AC / 1 A DC, 60 VA / 30 W
- Configuration
- Zoom screw, lens diaphragms, sensitivity potentiometer
- Output
- Potential-free relay, changeover contact, NO/NC by internal switch; drop-out delay 0.5 s fixed
Input
- Supply Voltage
- 12 to 24 V AC (-0 %/+15 %), 50/60 Hz; 12 to 30 V DC (-0 %/+15 %)
- Power Consumption
- DC 21 mA, AC 67 mA
Environment
- IP Rating
- IP52 (IEC 60529)
- Operating Temperature
- -40 to +60 °C
Physical
- Mounting Height
- Recommended max. 3.5 m
- Housing Material
- ABS
- Dimensions
- 99 x 62 x 29 mm
- Weight
- Approx. 40 g without cable
- Warranty
- Manufacturer warranty under Bircher's terms. How claims work
Product attributes and shipping details
| Brand | Bircher |
|---|
Downloads
Documentation
- PIR 20 Brochure (with technical data)Brochure · This model · 2.0 MBDownload
Certificate and compliance document (1)
- PIR 20 / PIR 22 EU Declaration of ConformityCertificate · This model · 385.6 KBDownload
Series documents can differ from your exact model. Report a wrong or missing file
Works with this product
Relevant accessories
- Bircher UniScan Infrared Safety Sensor for Swing and Revolving DoorsUniScan
Why Supplements PIR 20 / PIR 30.
- Bircher TopScan Infrared Presence Sensor for Swing and Revolving DoorsTopScan
Why Supplements PIR 20 / PIR 30.
Other models in the series
- Bircher PIR 30 Passive Infrared Motion Sensor for Doors up to 5 mPIR 30/31
Why Larger PIR detector with 18 Fresnel lenses for mounting up to 5 m.
Price on requestAdd to quote
Questions about this product
How is the PIR 20 detection field adjusted?
With the zoom screw and by masking individual Fresnel lenses with the supplied diaphragms.
Can PIR 20 be installed outdoors?
The detector is IP52; Bircher offers an IP65 protective cover (212827) as an accessory.
Ask about this modelSetup, compatibility, what is in the box
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