Home / B&R / Bus modules / B&R X20cBM31 – Bus module, bus module, for double-width modules

Available on request

B&R X20cBM31 – Bus module, bus module, for double-width modules

Name: B&R X20cBM31 – Bus module, bus module, for double-width modules
Brand: B&R
SKU: X20cBM31

MPN: X20cBM31 · 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

Ships via

Quick facts

Availability	Confirmed on request
Category	Bus modules
Lifecycle	Active
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

When can X20cBM31 be shipped?

X20cBM31 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 X20cBM31 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 X20cBM31 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 X20cBM31, subject to availability and destination.

• Bus module for double-width I/O modules

• The internal I/O supply is interconnected

Specifications

Short description

Bus module

Bus module, for double-width modules, 24 VDC keyed, internal I/O power supply connected through

General information

Power consumption – Bus	0.13 W
Power consumption – Internal I/O	-
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 – LR	ENV1
Certifications – KR	Yes
Certifications – ABS	Yes
Certifications – BV	EC33B ; Temperature: 5 - 55°C; Vibration: 4 g; EMC: Bridge and open deck
Additional power dissipation caused by actuators (resistive) [W]	-

I/O power supply

Nominal voltage	24 VDC
Permissible contact load	10 A

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 – Starting temperature	Yes, -40°C
Temperature – Storage	-40 to 85°C
Temperature – Transport	-40 to 85°C
Relative humidity – Operation	Up to 100%, condensing
Relative humidity – Storage	5 to 95%, non-condensing
Relative humidity – Transport	5 to 95%, non-condensing

Mechanical properties

Pitch

25 +0.2 mm

Downloads & documentation

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

Data sheets & manuals

Data sheet X20(c)BM31	PDF · 1 MB · 2.37 (02/10/2025) - EN
Coated modules	PDF · 60 KB · 1.00 (01/29/2015) - 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 X20BM31/2

ZIP · 325 KB · 1.00 (11/20/2015)

Certificates (12)

2226379 CSA Certificate of Compliance X20 X67	PDF · 205 KB · 2026_09 (09/21/2026)
ABS Certificate of Product Design Assessment - X20 IO Series	PDF · 454 KB · 2.00 (01/13/2025)
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)