B&R X20AP3121 NEW

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X20AP3121 NEW
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SKU : X20AP3121
Brand : B&R
Material number:
  • Calculates RMS values from currents and voltages
  • Calculates active, reactive and apparent power
  • Phasing detection
  • Measures individual phases and calculates cumulative values
  • Optional measurement of current through the neutral conductor
  • Calculates frequency and harmonics with high precision
  • NetTime timestamp: Moment when measured value groups are read

Power monitoring

These modules measure active, reactive and apparent power individually for each of the 3 phases as well as all of them collectively. The power consumption of each phase is also recorded individually and in total. In addition, the modules provide the RMS values for voltage and current on the 3 phases. When measuring the current, the value of the current through the neutral conductor can also be detected and monitored. Measurement of the mains frequency and the phase angle of the 3 phases (current and voltage) complete the power measurement data.

Energy management

The integrated functions on the modules map the immediate power requirements of the machine in detail as well as record its total power consumption. For the user, all relevant data is prepared and made available in the process image.

The ability to measure currents and voltages up to the 31st harmonic enables higher precision recording of RMS values than is generally possible. This allows the modules to easily cope with irregular sine curves and makes them well-suited to renewable energy applications. In these types of applications, for example, being able to accurately measure the frequency at a resolution of 0.01 Hz between 45 and 65 Hz is a great advantage. In general, the modules are suitable for use with 1-phase, 2-phase or 3-phase networks.

NetTime timestamp of readout moments

For many applications, not only the measured value is important, but also the exact moment when a group of measured values is read out. The module is equipped with a NetTime timestamp function for this that supplies a timestamp for the recorded position and trigger time with microsecond accuracy.

The timestamp function is based on synchronized timers. If a timestamp event occurs, the module immediately saves the current NetTime. After the respective data is transferred to the CPU, including this precise moment, the CPU can then evaluate the data using its own NetTime (or system time), if necessary.

State: New
Specification :
Short description
I/O module 3-phase power and energy metering module for current transformers
General information
B&R ID code 0xC9DB
Status indicators I/O function per channel, operating state, module status
Module run/error Yes, using LED status indicator and software
Inputs Yes, using LED status indicator and software
Power consumption
Bus 0.85 W (Rev. <D0)
0.50 W (Rev. =D0)
0.45 W (Rev. >D0)
Internal I/O -
Additional module power dissipation [W] 2 W
Insulation voltages
Inputs - Bus / I/O power supply Tested at 5500 VDC, 1 min
Inputs - Ground Tested at 5500 VDC, 1 min
Bus / I/O power supply - Ground Tested at 510 VAC, 1 min
CE Yes
ATEX Zone 2, II 3G Ex nA nC IIA T5 Gc
IP20, Ta (see X20 user's manual)
FTZÚ 09 ATEX 0083X
UL cULus E115267
Industrial control equipment
HazLoc cCSAus 244665
Process control equipment
for hazardous locations
Class I, Division 2, Groups ABCD, T5
DNV Temperature: B (0 to 55°C)
Humidity: B (up to 100%)
Vibration: B (4 g)
EMC: B (bridge and open deck)
KR Yes
Temperature: 5 - 55°C
Vibration: 4 g
EMC: Bridge and open deck
Voltage inputs
Number of phases 3
Input impedance 1.68 MΩ
Nominal voltage UN
Between phases Max. 480 VAC
Phase to N Max. 277 VAC
Max. display value 655 VAC
Resolution 10 mV, with voltage connected directly
Rated frequency 50 and 60 Hz
Measurable frequency
Measurement range 45 to 65 Hz
Resolution 0.01 Hz
Current inputs
Quantity 4 AC inputs
Nominal current IN
Secondary 1 A
Primary 65 A directly configurable, larger values through conversion in the application
Max. overload current 8 x IN for 0.5 s
Max. measurement current 1 A
Resolution 1 mA, based on the primary current
Load 500 mΩ
Measurement accuracy
URMS ±0.65%
IRMS ±0.65%
Effective, reactive and apparent power ±0.80%
Frequency, power factor and phase angle ±0.50%
Active energy per phase and total ±0.40%
Active energy of fundamental frequency per phase and total ±0.50%
Active energy of harmonics per phase and total ±0.80%
Reactive energy per phase and total ±0.50%
Apparent energy
Per phase and arithmetic total ±0.50%
Vector sum ±0.80%
Electrical properties
Electrical isolation Channel isolated from bus
Channel not isolated from channel
Operating conditions
Mounting orientation
Horizontal Yes
Vertical Yes
Installation elevation above sea level
0 to 2000 m No limitation
>2000 m Not permitted
Degree of protection per EN 60529 IP20
Ambient conditions
Horizontal mounting orientation -25 to 60°C
Vertical mounting orientation -25 to 50°C
Derating See section "Derating".
Storage -40 to 85°C
Transport -40 to 85°C
Relative humidity
Operation 5 to 95%, non-condensing
Storage 5 to 95%, non-condensing
Transport 5 to 95%, non-condensing
Mechanical properties
Note Order 1x terminal block X20TB32 separately.
Order 1x bus module X20BM32 separately.
Pitch 25+0.2 mm
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B&R X20AP3121 NEW