At a glance
- Channels
- 1 or 2 loops
- Supply Voltage
- 24 V AC/DC
- Loop Inductance
- 20 to 1,000 µH
- Output
- 2 relay outputs
- Mounting
- DIN rail or 11-pin plug-in base ES12
- IP Rating
- IP20
Model ProLoop2Current modelBircher ProLoop2 Induction Loop Detector, 1 or 2 Channel
Price on request
At a glance
- Channels
- 1 or 2 loops
- Supply Voltage
- 24 V AC/DC
- Loop Inductance
- 20 to 1,000 µH
- Output
- 2 relay outputs
- Mounting
- DIN rail or 11-pin plug-in base ES12
- IP Rating
- IP20
Detector for a wire loop in the road that senses vehicles, from bicycles to trucks, to open gates and barriers, trigger ticket machines or protect bollards. 1 or 2 channels, LCD display, direction logic on 2-loop units, DIN rail or 11-pin housing.
Housing: DIN rail, 11-pin plug-in
Channels: 1, 2
Supply Voltage: 24 V AC/DC, 100-240 V AC, 230 V AC
Alarm Output: No, Yes
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
ProLoop2 is an inductive loop detector. It drives a wire loop laid in the road, measures the change in inductance when a metal vehicle passes over it, and switches relay outputs. It detects everything from bicycles to trucks with trailers.
What it is used for
Typical uses are opening and closing sliding gates and boom barriers, triggering ticket dispensers at car parks, protecting retractable bollards and controlling gates with traffic lights. Two-loop versions offer a direction logic mode, where the output depends on which loop the vehicle crosses first.
Key features
- LCD display and two push buttons for setup, with on-screen reading of loop inductance in µH.
- Inductance range 20 to 1,000 µH, ideal 80 to 300 µH, with an isolation transformer between loop and detector.
- Sensitivity in 9 steps from 0.01 to 1.00%, plus Automatic Sensitivity Boost for high-bed vehicles.
- Hold, on-delay, off-delay and pulse on entry or exit modes, with times from 0.1 s to 99 h.
- Power fail function that stores the loop reference during an outage.
- Last five error codes stored.
Buying considerations
Choose the housing (DIN rail or 11-pin plug-in), one or two loops, and the supply: 24 V AC/DC, 100 to 240 V AC (LVAC) or 230 V AC (11-pin only). The .A versions add a separate alarm relay. 11-pin versions are supplied without the ES12 plug-in base.
Installation considerations
The detector is IP20 and must sit inside a control cabinet or barrier housing. Each channel needs its own induction loop; Bircher’s loop installation guide covers groove depth, turns and feeder twisting.
Compatibility
Relay outputs rated 240 V AC, 2 A (AC-1) or 30 V DC, 1 A connect to barrier, gate and bollard controllers. The 11-pin version plugs onto existing ES12 bases for retrofits.
Technical specifications
Key facts
- What is it?
- Loop Detectors & Vehicle SensorsBrand Bircher, model ProLoop2
- What is it used for?
- Vehicle detection at gates, barriers, car parks and bollards
- How is it powered?
- 24 V AC/DC
- Can it be used outdoors?
- IP20
- Which accessories may be required?
- Pre-assembled induction loop SF; Plug-in base ES12Some depend on the installation. See Works with for the conditions.
- Which documents are available?
- User manual, brochure, datasheet, installation guide, 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
General
- Technology
- Inductive loop detection, frequency modulation
- Application
- Vehicle detection at gates, barriers, car parks and bollards
- Channels
- 1 or 2 loops
- Loop Inductance
- 20 to 1,000 µH (ideal 80 to 300 µH)
- Operating Frequency
- 16 to 120 kHz, 4 steps
- Relay Contact Rating
- AC-1: 240 V AC, 2 A; DC-1: 30 V DC, 1 A; alarm relay 40 V, 0.3 A
- Response Time
- Channel switching time 25 ms (1-loop), 50 ms (2-loop)
- Max. Vehicle Speed
- 50 km/h with suitable loop
- Loop Supply Cable
- 1.5 mm², min. 20 twists per metre, max. 100 m at 20 to 40 µH, max. 200 m above 40 µH
- Configuration
- LCD display and 2 push buttons
- Output
- 2 relay outputs; .A versions add an alarm relay
Input
- Supply Voltage
- 24 V AC/DC; 100 to 240 V AC (LVAC); 230 V AC (11-pin)
- Power Consumption
- DIN 24 V: max. 1.5 W DC / 2 W AC; LVAC: max. 2.9 W; 11-pin 24 V: 1.3 W DC / 1.8 W AC
Environment
- Operating Temperature
- -20 to +70 °C (data sheets)
- IP Rating
- IP20
Physical
- Mounting
- DIN rail or 11-pin plug-in base ES12
- Dimensions
- DIN: 22.5 x 92 x 85 mm; 11-pin: 38 x 74 x 88 mm (W x H x D, data sheets)
Approvals
- Standards
- RED 2014/53/EU
- Warranty
- Manufacturer warranty under Bircher's terms. How claims work
Product attributes and shipping details
| Brand | Bircher |
|---|---|
| Detection Zones | 1, 2 |
| Gate Type | Bollard, Boom Barrier, Sliding gate |
| Housing | DIN rail, 11-pin plug-in |
| Channels | 1, 2 |
| Supply Voltage | 24 V AC/DC, 100-240 V AC, 230 V AC |
| Alarm Output | No, Yes |
Downloads
Documentation
- ProLoop2 BrochureBrochure · This model · 3.0 MBDownload
- ProLoop2 1.24ACDC Data SheetDatasheet · This model · 233.3 KBDownload
Certificate and compliance document (1)
- ProLoop2 EU Declaration of ConformityCertificate · This model · 387.2 KBDownload
User manual
- ProLoop2 ManualUser manual · This model · 1.0 MBDownload
Installation guide
- Bircher ProLoop installation guide (Loop Installation Instructions)Installation guide · Family · 434.6 KBDownload
Series documents can differ from your exact model. Report a wrong or missing file
Works with this product
Relevant accessories
- Bircher SF Pre-Assembled Induction Loop for ProLoop DetectorsSF pre-assembled induction loop
Why Each channel needs an induction loop; Bircher offers pre-assembled loops for ProLoop. Condition: Unless a loop is laid on site.
- Bircher ES12 11-Pin Plug-in Base for ProLoop Loop DetectorsES12
Why 11-pin units are sold without plug-in base (article 209745). Condition: 11-pin versions only.
Price on requestAdd to quote - Bircher LBGate TB18 Through-Beam Light Barrier, 30 m RangeLBGate TB18
Why ProLoop2 is a supplementary product for gate activation. Condition: Gate installations needing closing protection.
Price on requestAdd to quote
Replacements and alternatives
- Bircher ProLoop Lite Induction Loop DetectorProLoop Lite
Why Compact standard version of ProLoop2. Condition: When alarm output and power-fail memory are not needed.
- Bircher EasyLoop D 79 GHz Radar Vehicle Detector for BarriersEasyLoop D
Why Above-ground radar vehicle detection without road cutting. Condition: When cutting loops is not possible.
Price on requestAdd to quote
Questions about this product
Which ProLoop2 version should I choose for a single barrier with one loop?
A 1-channel version. Pick the supply that matches your controller: 24 V AC/DC, 100 to 240 V AC (LVAC, DIN rail) or 230 V AC (11-pin plug-in).
Is the induction loop included?
No. Bircher sells pre-assembled loops separately in 6, 8, 10 and 12 m circumferences, or a loop can be laid on site following the Bircher loop installation guide.
Does the 11-pin version include the socket?
No. Bircher lists the 11-pin units as without plug-in base; the ES12 base (article 209745) is ordered separately.
Can ProLoop2 detect the direction of a vehicle?
Yes, on 2-loop devices. In direction logic mode output 1 switches for travel from loop 1 to loop 2 and output 2 for the opposite direction.
Ask about this modelSetup, compatibility, what is in the box
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