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B&R X20AI2437

I/O module, 2 analog inputs 4 to 20 mA or 0 to 25 mA

MPN: X20AI2437
Category: Analog inputs

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What is the B&R X20AI2437?

2 analog current measurement inputs

Electrically isolated analog channels

Electrically isolated sensor supplies

16-bit digital converter resolution

NetTime timestamp: Moment of measurement

The module is equipped with 2 current measurement inputs with 16-bit digital converter resolution.

Each current measurement input has its own sensor supply. The two channels with their respective sensor supplies are electrically isolated from each other. The user can select between the two measurement ranges 4 to 20 mA and 0 to 25 mA .

Specifications

Short description

I/O module

2 analog inputs 4 to 20 mA or 0 to 25 mA

General information

Diagnostics – Module run/error	Yes, using LED status indicator and software
Diagnostics – Inputs	Yes, using LED status indicator and software
Diagnostics – Sensor power supply	Yes, using LED status indicator and software
Power consumption – Bus	0.05 W
Power consumption – Internal I/O	1.15 W (note: To reduce power dissipation, B&R recommends leaving unused inputs open.)
Certifications – CE	Yes
Certifications – UKCA	Yes
Certifications – CRA (Cyber Resilience Act)	In preparation
Certifications – ATEX	Zone 2, II 3G Ex nA nC IIA T5 Gc; IP20, Ta (see X20 user's manual); FTZÚ 09 ATEX 0083X
Certifications – UL	cULus E115267; Industrial control equipment
Certifications – HazLoc	cCSAus 244665; Process control equipment; for hazardous locations; Class I, Division 2, Groups ABCD, T5
Certifications – DNV	Temperature: B (0 to 55°C); Humidity: B (up to 100%); Vibration: B (4 g); EMC: B (bridge and open deck)
Certifications – CCS	Yes
Certifications – LR	ENV1
Certifications – KR	Yes
Certifications – ABS	Yes
Certifications – BV	EC33B ; Temperature: 5 - 55°C; Vibration: 4 g; EMC: Bridge and open deck
Certifications – KC	Yes
B&R ID code	0xB784
Status indicators	I/O function per channel, operating state, module status, sensor power supply per channel
Additional power dissipation caused by actuators (resistive) [W]	-

Analog inputs

Output format – 4 to 20 mA	INT 0x0000 - 0x7FFF / 1 LSB = 0x0001 = 488.281 nA
Output format – 0 to 25 mA	INT 0x0000 - 0x7FFF / 1 LSB = 0x0001 = 762.939 nA
Output format – 0 to 25000 µA	INT 0x0000 - 0x61A8 / 1 LSB = 0x0001 = 1000 nA
Max. error – 0 to 25 mA	<0.046% (note: Based on the current measured value.)
Max. error – 4 to 20 mA	<0.046% (note: Based on the current measured value.)
Max. error – 0 to 25 mA	<0.004% (note: Based on the 25 mA measurement range.)
Max. error – 4 to 20 mA	<0.013% (note: Based on the 25 mA measurement range.)
Common-mode rejection – DC	80 dB
Common-mode rejection – 50 Hz	Depends on the sampling rate: e.g. >130 dB for 50 samples per second
Input filter – Hardware	First-order low-pass filter / cutoff frequency 2.5 kHz
Input filter – Software	Sinc 4 filter
Max. gain drift – 0 to 25 mA	0.003 %/°C (note: Based on the current measured value.)
Max. gain drift – 4 to 20 mA	0.003 %/°C (note: Based on the current measured value.)
Max. offset drift – 0 to 25 mA	0.0002 %/°C (note: Based on the 25 mA measurement range.)
Max. offset drift – 4 to 20 mA	0.0007 %/°C (note: Based on the 25 mA measurement range.)
Test voltage – Channel - Channel	1000 VAC
Test voltage – Channel - Bus	1000 VAC
Test voltage – Channel - Ground	1000 VAC
Input	4 to 20 mA or 0 to 25 mA configurable using software
Input type	Differential input
Digital converter resolution	16-bit
Data output rate	4.7 to 960 samples per second, configurable using software
Output format	INT
Load	I_IN ≥ 0.1 mA: R < 8000 Ω ; I_IN ≥ 1 mA: R < 1100 Ω ; I_IN ≥ 4 mA: R < 510 Ω
Input protection	Up to 30 VDC, reverse polarity protection (max. 0.1 A)
Open-circuit detection	Yes, using software
Permissible input signal	0 to 25 mA
Output of digital value during overload	Configurable
Conversion procedure	Sigma-delta
Common-mode range	0 to 7 V
Nonlinearity	<0.003% (note: Based on the 25 mA measurement range.)

Sensor power supply

Max. voltage ripple – Up to 100 kHz	≤2.2 mV
Max. voltage ripple – Up to 1 MHz	≤22 mV
Max. voltage ripple – Higher	≤100 mV
Short-circuit current – Typical	<50 mA
Short-circuit current – Maximum	60 mA
Power consumption	0.75 W per channel
Nominal voltage	25 V ±2%
Nominal output current	Max. 30 mA
Short-circuit proof	Yes, continuous
Behavior on short circuit	Current limiting

Electrical properties

Electrical isolation

Channel isolated from channel and bus; Sensor power supply isolated from sensor power supply; Sensor power supply not isolated from channel

Operating conditions

Mounting orientation – Horizontal	Yes
Mounting orientation – Vertical	Yes
Installation elevation above sea level – 0 to 2000 m	No limitation
Installation elevation above sea level – >2000 m	Reduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529	IP20

Ambient conditions

Temperature – Horizontal mounting orientation	-25 to 60°C
Temperature – Vertical mounting orientation	-25 to 50°C
Temperature – Derating	-
Temperature – Storage	-40 to 85°C
Temperature – Transport	-40 to 85°C
Relative humidity – Operation	5 to 95%, non-condensing
Relative humidity – Storage	5 to 95%, non-condensing
Relative humidity – Transport	5 to 95%, non-condensing

Mechanical properties

Note	Order 1x terminal block X20TB12 separately. ; Order 1x bus module X20BM11 separately.
Pitch	12.5 +0.2 mm

Accessories

Required accessories (order separately)

X20BM15	Bus modules — The bus module is the base for all X20 24 VDC I/O modules; The internal I/O supply is interconnected; Manual node number assignment; Indepe…
X20BM11	Bus modules — Bus module for 24 VDC I/O modules; The internal I/O power supply is connected through. The bus module is the base for all 24 VDC I/O module…
X20TB12	Terminal blocks — Tool-free wiring with push-in technology; Simple wire release using lever; Ability to label each terminal; Plain text labeling also possibl…

Downloads & documentation

Official documents from B&R, downloaded directly from the manufacturer.

Data sheets & manuals

CAD & dimension drawings

Certificates (15)

X20AI2437: frequently asked questions

When can X20AI2437 be shipped?

X20AI2437 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up X20AI2437 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for X20AI2437 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for X20AI2437, subject to availability and destination.