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B&R X20CM0985 – I/O module, X20 energy measurement and synchronization…

Name: B&R X20CM0985 – I/O module, X20 energy measurement and synchronization…
Brand: B&R
SKU: X20CM0985

MPN: X20CM0985 · 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	Other functions
Lifecycle	Active
Warranty	12-month (new) · 3-month (used/refurbished)
Datasheet	Manufacturer datasheet ↗

Shipping & availability

When can X20CM0985 be shipped?

X20CM0985 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 X20CM0985 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 X20CM0985 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 X20CM0985, subject to availability and destination.

• Energy measurement for 120 to 480 VAC

• Simultaneous measurement of 2 AC mains networks plus 2 additional voltages

• For multifunctional measurement tasks

• Intelligent mains synchronization unit

The module has a compact size and combines a power measurement module that has special features with a synchronization unit that is able to meet all demands.

The measurement unit's 3 current inputs are suitable for both X: 1 A and X: 5 A current transformers. Overcurrent resistance and the high resolution of the measurement unit round off its features. For the voltage inputs, the value range can be configured between 480 VAC and 120 VAC .

The area of use includes 4-wire AC networks with a phase voltage up to 480 VAC and 3-wire systems, whereas L2 can be grounded (V-connection). The module can also handle Aron measuring circuits.

The resulting measured values include the pure phase current; line-to-line voltage or phase voltage; the effective, reactive and apparent power parts; the mains frequency; the power factor and much more. In addition, peak values and energy meters are stored on the module in nonvolatile memory. Depending on the configuration, it is also possible to use a digital output as a pulse encoder for an external energy meter.

The synchronization unit doesn't just take the phasing and phase voltage into consideration; integrated intelligence also monitors the rate of change and other parameters, allowing them to influence when the synchronization output is switched. It is also possible to monitor a generator using a large number of additional conditions. A total of 4 voltage inputs provide substantial overall flexibility.

Monitoring functions expand the features of the module. Dependent overcurrent monitoring is included, which utilizes the thermal capacity of the motor/generator to allow short overloads while still providing full protection. The dependent, delayed imbalanced load monitoring used to protect three-phase generator and three-phase networks from imbalanced load can be adapted to the characteristics of different generator types using parameters while taking their special thermal time constants into account.

Accessories

Required accessories (order separately)

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…
0TB3104-7012	Terminal blocks — The single row 4-pin terminal block 0TB3104 is used for making connections on an X20 energy measurement module.
0TB3104-7011	Terminal blocks — The single row 4-pin terminal block 0TB3104 is used for making connections on an X20 energy measurement module.
0TB3102-7012	Terminal blocks — The single row 2-pin terminal block 0TB3102 is used for making connections on an X20 energy measurement module.
0TB3102-7011	Terminal blocks — Accessory terminal block, 2-pin, A-coded, screw clamp terminal block 6 mm²

Specifications

Short description

I/O module

X20 energy measurement and synchronization module

General information

Diagnostics – Module run/error	Yes, using LED status indicator and software
Diagnostics – Analog inputs	Yes, using LED status indicator (measurement range of analog inputs)
Diagnostics – Digital outputs	Yes, using LED status indicator and software
Power consumption – Bus	1.4 W
Power consumption – Internal I/O	4 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 – KC	Yes
B&R ID code	0x2433
Status indicators	Channel status, operating state, module status
Overvoltage category	ll " data-placement="top" data-html="true" data-container="body" data-content="EN 61131-2">
Additional power dissipation caused by actuators (resistive) [W]	-

Digital outputs

Switching delay – 0 → 1	<300 μs
Switching delay – 1 → 0	<300 μs
Switching frequency – Resistive load	Max. 100 Hz
Quantity	5
Variant	Current-sourcing FET
Nominal voltage	24 VDC
Switching voltage	24 VDC -15% / +20%
Nominal output current	0.1 A
Total nominal current	0.5 A
Connection type	1-wire connections
Output circuit	Source
Output protection	Thermal shutdown in the event of overcurrent or short circuit
Diagnostic status	Output monitoring with 10 ms delay
Leakage current when the output is switched off	5 μA
Residual voltage	<0.3 V at 0.1 A nominal current
Peak short-circuit current	<2 A
Switch-on in the event of overload shutdown or short-circuit shutdown	Approx. 10 ms, depends on the module temperature
Insulation voltage between channel and bus	500 V eff

Relay outputs

Switching capacity – Min.	10 mA / 5 VDC
Switching capacity – Max.	30 W / 240 VAC
Switching delay – 0 → 1	≤10 ms
Switching delay – 1 → 0	≤10 ms
Service life " data-placement="top" data-html="true" data-container="body" data-content="See section "Electrical service life"."> – Mechanical	Min. 10 x 10 6 ops.
Service life " data-placement="top" data-html="true" data-container="body" data-content="See section "Electrical service life"."> – Electrical	Min. 60 x 10 3 ops. (NC) at 1 A; Min. 30 x 10 3 ops. (NO) at 1 A
Protective circuit – Internal	None
Protective circuit – External	None
Protective circuit – DC	Inverse diode, RC combination or VDR
Protective circuit – AC	RC combination or VDR
Insulation voltage – Channel - Channel	1000 VAC / 1 min
Insulation voltage – Channel - Bus	4000 VAC / 1 min
Quantity	1
Variant	Relay / Changeover contact
Nominal voltage	30 VDC / 240 VAC
Rated frequency	DC / 45 to 63 Hz
Nominal output current	1 A at 30 VDC / 1 A at 240 VAC
Actuator power supply	External
Switching voltage	Max. 60 VDC / 250 VAC
Contact resistance	Max. 100 mΩ

Analog input voltage

Conversion time – 50 Hz	20 ms
Conversion time – 60 Hz	16.67 ms
Output format " data-placement="top" data-html="true" data-container="body" data-content="INT, range of values: 0x8001 to 0x7FFF"> – ±120 VAC	1 LSB = 0x0001 = 5.707 mV
Output format " data-placement="top" data-html="true" data-container="body" data-content="INT, range of values: 0x8001 to 0x7FFF"> – ±480 VAC	1 LSB = 0x0001 = 22.787 mV
Output of digital value during overload – Overshoot	0x7FFF
Output of digital value during overload – Undershoot	0x8001
Input filter – Cutoff frequency	10 kHz
Input filter – Slope	60 dB
Max. error at 25°C – Gain	0.09% " data-placement="top" data-html="true" data-container="body" data-content="Based on the current measured value">
Max. error at 25°C – Offset	0.03% " data-placement="top" data-html="true" data-container="body" data-content="Based on the measurement range 240 VAC / 960 VAC">
Channels	8
Input	120 VAC / 480 VAC
Input type	Single-ended
Digital converter resolution	±15-bit
Permissible input signal	Max. 132 VAC / 528 VAC
Conversion method	SAR
Maximum gain drift " data-placement="top" data-html="true" data-container="body" data-content="Based on the current measured value">	0.02% per °C
Maximum offset drift " data-placement="top" data-html="true" data-container="body" data-content="Based on the measurement range 240 VAC / 960 VAC">	0.003% per °C
Crosstalk between channels	-70 dB
Nonlinearity " data-placement="top" data-html="true" data-container="body" data-content="Based on the measurement range 240 VAC / 960 VAC">	≤0.5% at 45 to 65 Hz
Protection against electric shock	Protective impedance per EN 61131-2
Test voltage between channel and bus (type test)	3700 V eff
Output format	INT
Input impedance in signal range	Approx. 3 MΩ
Input protection	Overvoltage protection

Analog input current

Conversion time – 50 Hz	20 ms
Conversion time – 60 Hz	16.67 ms
Output format " data-placement="top" data-html="true" data-container="body" data-content="INT, range of values: 0x8001 to 0x7FFF"> – ±1 A	1 LSB = 0x0001 = 189.903 μA
Output format " data-placement="top" data-html="true" data-container="body" data-content="INT, range of values: 0x8001 to 0x7FFF"> – ±5 A	1 LSB = 0x0001 = 949.513 μA
Output of digital value during overload – Overshoot	0x7FFF
Output of digital value during overload – Undershoot	0x8001
Input filter – Cutoff frequency	10 kHz
Input filter – Slope	60 dB
Max. error at 25°C – Gain	0.2% " data-placement="top" data-html="true" data-container="body" data-content="Based on the current measured value">
Max. error at 25°C – Offset	0.05% " data-placement="top" data-html="true" data-container="body" data-content="Based on the measurement range 2 A / 10 A">
Input impedance " data-placement="top" data-html="true" data-container="body" data-content="Including current transformer, circuit path and X20TB12 terminal block (5 mΩ)"> – Measurement range 1 A	Max. 30 mΩ
Input impedance " data-placement="top" data-html="true" data-container="body" data-content="Including current transformer, circuit path and X20TB12 terminal block (5 mΩ)"> – Measurement range 5 A	Max. 10 mΩ
Channels	3
Input	1 A / 5 A AC
Input type	Isolated current transformer according to the compensation principle with a magnetic sensor, for connecting an external transformer
Digital converter resolution	±15-bit
Permissible input signal	Max. 1.5 A / 7.7 A
Conversion method	SAR
Maximum gain drift " data-placement="top" data-html="true" data-container="body" data-content="Based on the current measured value">	0.07% per °C
Maximum offset drift " data-placement="top" data-html="true" data-container="body" data-content="Based on the measurement range 2 A / 10 A">	0.003% per °C
Crosstalk between channels	-70 dB
Nonlinearity " data-placement="top" data-html="true" data-container="body" data-content="Based on the measurement range 2 A / 10 A">	≤0.5% at 45 to 65 Hz
Insulation voltage between channel and bus	500 V eff
Output format	INT
Thermal overcurrent	15 x I Nom for 0.2 s " data-placement="top" data-html="true" data-container="body" data-content="Based on the measurement range 1 A / 5 A">
Monitored overcurrent	4 x I Nom " data-placement="top" data-html="true" data-container="body" data-content="Based on the measurement range 1 A / 5 A">

Electrical properties

Electrical isolation

Bus isolated from I/O power supply and digital inputs and outputs ; Digital inputs and outputs isolated from each other

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	0 to 60°C
Temperature – Vertical mounting orientation	0 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 2x terminal block X20TB12 separately. ; Order 2x screw clamp terminal block TB3102 and 2x screw clamp terminal block TB3104 separately.
Pitch	87.5 +0.2 mm

Downloads & documentation

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

Data sheets & manuals

Data sheet X20CM0985	PDF · 2 MB · 1.50 (07/29/2025) - 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 data DXF / STEP X20CM0985

ZIP · 1 MB · 1.0 (12/13/2010)

Certificates (7)

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)
UK Declaration PLC X20	PDF · 151 KB · 2024-01 (01/18/2024)
X20, X67 KC certificates	PDF · 7 MB · 2.00 (08/17/2026)