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B&R X20AO2438 – I/O module, 2 analog outputs 4 to 20 mA

Name: B&R X20AO2438 – I/O module, 2 analog outputs 4 to 20 mA
Brand: B&R
SKU: X20AO2438

MPN: X20AO2438 · Brand: B&R

Price on request

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12-month warranty (new) · 3-month (used/refurbished)

30-day returns, no restocking fee on unused parts

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Quick facts

Availability	Confirmed on request
Category	Analog outputs
Lifecycle	Active
Warranty	12-month (new) · 3-month (used/refurbished)
Datasheet	Manufacturer datasheet ↗

Shipping & availability

When can X20AO2438 be shipped?

X20AO2438 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 X20AO2438 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 X20AO2438 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 X20AO2438, subject to availability and destination.

• 2 analog current outputs

• HART protocol integration

• Support for HART variables

• Electrically isolated analog channels

• 16-bit digital converter resolution

• OSP mode

• NetTime timestamp: HART image

The module is equipped with 2 current outputs with 16-bit digital converter resolution. It supports the HART communication standard for data transfer, parameter configuration and diagnostics.

The 2 channels are electrically isolated from each other. The user can select between the 3 output ranges 4 to 20 mA , 0 to 20 mA and 0 to 24 mA .

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…

Specifications

Short description

I/O module

2 analog outputs 4 to 20 mA, 0 to 20 mA or 0 to 24 mA

General information

Diagnostics – Module run/error	Yes, using LED status indicator and software
Diagnostics – Outputs	Yes, using LED status indicator and software
Diagnostics – HART link	Yes, using LED status indicator and software
Diagnostics – HART error	Yes, using LED status indicator and software
Power consumption – Bus	0.05 W
Power consumption – Internal I/O	1.65 W
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	0xB3AA
Status indicators	I/O function per channel, operating state, module status, HART
Additional power dissipation caused by actuators (resistive) [W]	-

Analog outputs

Data output rate – With HART	210 ms (default)
Data output rate – Analog	1 ms without ramp
Max. error " data-placement="top" data-html="true" data-container="body" data-content="At 25°C"> – 4 to 20 mA	±0.025% " data-placement="top" data-html="true" data-container="body" data-content="Based on the current output value.">
Max. error " data-placement="top" data-html="true" data-container="body" data-content="At 25°C"> – 0 to 20 mA	±0.022% " data-placement="top" data-html="true" data-container="body" data-content="Based on the current output value.">
Max. error " data-placement="top" data-html="true" data-container="body" data-content="At 25°C"> – 0 to 24 mA	±0.02% " data-placement="top" data-html="true" data-container="body" data-content="Based on the current output value.">
Max. error " data-placement="top" data-html="true" data-container="body" data-content="At 25°C"> – 4 to 20 mA	±0.025% " data-placement="top" data-html="true" data-container="body" data-content="Based on the respective output range.">
Max. error " data-placement="top" data-html="true" data-container="body" data-content="At 25°C"> – 0 to 20 mA	±0.022% " data-placement="top" data-html="true" data-container="body" data-content="Based on the respective output range.">
Max. error " data-placement="top" data-html="true" data-container="body" data-content="At 25°C"> – 0 to 24 mA	±0.02% " data-placement="top" data-html="true" data-container="body" data-content="Based on the respective output range.">
Output format – 4 to 20 mA	INT 0x0000 to 0x7FFF / 1 LSB = 0x0001 = 488.281 nA
Output format – 0 to 20 mA	INT 0x0000 to 0x7FFF / 1 LSB = 0x0001 = 610.352 nA ; UINT 0x0000 to 0xFFFF / 1 LSB = 0x0001 = 305.176 nA
Output format – 0 to 24 mA	INT 0x0000 to 0x5DC0 / 1 LSB = 0x0001 = 1000 nA
Max. gain drift – 4 to 20 mA	±0.0055%/°C " data-placement="top" data-html="true" data-container="body" data-content="Based on the current output value.">
Max. gain drift – 0 to 20 mA	±0.005%/°C " data-placement="top" data-html="true" data-container="body" data-content="Based on the current output value.">
Max. gain drift – 0 to 24 mA	±0.005%/°C " data-placement="top" data-html="true" data-container="body" data-content="Based on the current output value.">
Max. offset drift – 4 to 20 mA	±0.0035%/°C " data-placement="top" data-html="true" data-container="body" data-content="Based on the respective output range.">
Max. offset drift – 0 to 20 mA	±0.002%/°C " data-placement="top" data-html="true" data-container="body" data-content="Based on the respective output range.">
Max. offset drift – 0 to 24 mA	±0.002%/°C " data-placement="top" data-html="true" data-container="body" data-content="Based on the respective output range.">
Error caused by load change " data-placement="top" data-html="true" data-container="body" data-content="Load change from 1 Ω → 600 Ω, resistive"> – 4 to 20 mA	0.14%
Error caused by load change " data-placement="top" data-html="true" data-container="body" data-content="Load change from 1 Ω → 600 Ω, resistive"> – 0 to 20 mA	0.1%
Error caused by load change " data-placement="top" data-html="true" data-container="body" data-content="Load change from 1 Ω → 600 Ω, resistive"> – 0 to 24 mA	0.1%
Test voltage – Channel - Channel	1000 VAC
Test voltage – Channel - Bus	1000 VAC
Test voltage – Channel - Ground	1000 VAC
Output	4 to 20 mA, 0 to 20 mA or 0 to 24 mA configurable using software
Digital converter resolution	16-bit
Settling time on output change over entire range	2 ms to 20 s, configurable using software
Output protection	Short-circuit proof, overvoltage protection (up to 30 VDC)
Open-circuit detection	Yes, using hardware and software
Data format	INT
Load per channel	Max. 600 Ω
Short-circuit proof	Yes, continuous
Output filter	Active second-order low-pass filter / Cutoff frequency 19 Hz; Configurable slew rate
Nonlinearity	<0.003% " data-placement="top" data-html="true" data-container="body" data-content="Based on the entire output range.">

HART

Multi-drop operation – Possible	Yes
Multi-drop operation – Stations	Up to 15
Transmission amplitude – Minimum	400 mV pp
Transmission amplitude – Typical	500 mV pp
Transmission amplitude – Maximum	600 mV pp
Receiving amplitude – Minimum	120 mV pp
Receiving amplitude – Maximum	1500 mV pp
Transfer rate	1200 bit/s
Operating frequencies	1200 Hz / 2200 Hz
Burst operation possible	Yes

Electrical properties

Electrical isolation

Channel isolated from channel and bus

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	See section "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

Downloads & documentation

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

Data sheets & manuals

Datasheet X20(c)AO2438	PDF · 2 MB · 1.51 (05/26/2025) - EN
X20 Package leaflet ATEX/CSA	PDF · 2 MB · 1.4 (09/17/2024)
X20 System User´s Manual	PDF · 50 MB · 4.40 (03/10/2026) - EN

CAD & dimension drawings

3D File DXF/STEP X20 Electronic module	ZIP · 10 KB · 1.0 (10/17/2005)
3D File STEP X20 I/O-Slice	ZIP · 872 KB · 1.1 (03/13/2019)
Dimensions PDF X20 Electronic module	PDF · 3 KB · 1.0 (10/17/2005)

Certificates (15)

2226379 CSA Certificate of Compliance X20 X67	PDF · 205 KB · 2026_09 (09/21/2026)
64331_A1 BV Certificate of Compliance X20	PDF · 1 MB · 2026_05 (05/05/2026)
ABS Certificate of Product Design Assessment - X20 IO Series	PDF · 454 KB · 2.00 (01/13/2025)
CCS Type Approval Certificate - X20	PDF · 285 KB · 1.00 (06/28/2024)
E115267 UL Certificate of Compliance X20	PDF · 3 MB · 2026_08_27 (08/27/2026)
EU Data Act - X20 IO - Connected Product Information Notice	PDF · 92 KB · 1.00 (09/30/2025)
EU Declaration ATEX X20	PDF · 218 KB · 2023-07 (09/05/2023)
EU Declaration of conformity PLC X20	PDF · 169 KB · 2021/10 (11/08/2021)
FTZU 09 ATEX 0083X	PDF · 771 KB · 3.00 (10/12/2021)
KR Type Approval Certificate MIL39390-AC003 (X20 System)	PDF · 320 KB · 2.0 (05/05/2025)
Lloyds Register (X20 only)	PDF · 884 KB · 1.30 (07/07/2025)
RINA Type Approval Certificate - X20 / Power Panel T30	PDF · 1 MB · 1.00 (05/07/2021)
TAA00000BJ DNV Type Approval Certificate X20	PDF · 186 KB · 13.0 (05/04/2026)
UK Declaration PLC X20	PDF · 151 KB · 2024-01 (01/18/2024)
X20, X67 KC certificates	PDF · 7 MB · 2.00 (08/17/2026)