IAC

B&R X20DO4332-1

4 digital outputs with 2 A Source circuit 3-wire connections 24 VDC and GND for actuator power supply Integrated output protection OSP mode PWM mode The module is equipped with 4 outputs with 3-wire connections as well as 24 VDC and GND for the actuator power supply. The outputs are designed for a source circuit. The nominal output current is 2 A.

Lifecycle & replacement

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Technical specifications

Short description
I/O module4 digital outputs 24 VDC for 3-wire connections
General information
Diagnostics / Module run/errorYes, using LED status indicator and software
Diagnostics / OutputsYes, using LED status indicator and software (output error status)
Power consumption / Bus0.1 W (Rev. <D0: 0.16 W)
Power consumption / Internal I/O0.49 W
Certifications / CEYes
Certifications / UKCAYes
Certifications / CRA (Cyber Resilience Act)In preparation
Certifications / DNVTemperature: B (0 to 55°C) Humidity: B (up to 100%) Vibration: B (4 g) EMC: B (bridge and open deck)
Certifications / CCSYes
Certifications / LRENV1
Certifications / KRYes
Certifications / ABSYes
Certifications / BVEC33B Temperature: 5 - 55°C Vibration: 4 g EMC: Bridge and open deck
B&R ID code0xF5F9
Status indicatorsI/O function per channel, operating state, module status
Additional power dissipation caused by actuators (resistive) [W]+1 (Rev. <D0: +1.6)
Digital outputs
Switching delay / 0 → 1<300 µs
Switching delay / 1 → 0<300 µs
Switching frequency / Resistive loadMax. 500 Hz
VariantCurrent-sourcing FET
Nominal voltage24 VDC
Switching voltage24 VDC -15% / +20%
Nominal output current2 A
Total nominal current8 A
Connection type3-wire connections
Output circuitSource
Output protectionThermal shutdown in the event of overcurrent or short circuit (see value "Short-circuit peak current") Internal freewheeling diode for switching inductive loads
Actuator power supply0.5 A in total for output-independent actuator power supply
Diagnostic statusOutput monitoring with 10 ms delay
Leakage current when the output is switched off5 µA
RDS(on)60 mΩ (Rev. <D0: 100 mΩ)
Peak short-circuit current<4 A
Switch-on in the event of overload shutdown or short-circuit shutdownApprox. 10 ms (depends on the module temperature)
Braking voltage when switching off inductive loads0.6 V
Insulation voltage between channel and bus500 Veff
Additional functionsOutputs can be connected in parallel to increase the output current.
PWM output
Quantity4
Nominal voltage24 VDC
Nominal current2 A
PWM frequency15.25 to 1000 Hz
Output protectionThermal shutdown in the event of overcurrent or short circuit (see value "Short-circuit peak current") Internal freewheeling diode for switching inductive loads
VariantCurrent-sourcing FET
Configurable dither0 to 250 Hz, 1 to 25% of the period duration
Period duration resolution1000 to 65535 µs in 1 µs steps
Insulation voltage between channel and bus500 Veff
Actuator power supply
Power consumption / Actuator power supplyMax. 12 W
VoltageModule power supply minus voltage drop for short-circuit protection
Voltage drop for short-circuit protection at 500 mAMax. 2 V
Short-circuit proofYes
Electrical properties
Electrical isolationChannel isolated from bus Channel not isolated from channel and I/O power supply
Operating conditions
Mounting orientation / HorizontalYes
Mounting orientation / VerticalYes
Installation elevation above sea level / 0 to 2000 mNo limitation
Installation elevation above sea level / >2000 mReduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529IP20
Ambient conditions
Temperature / Operation / Horizontal mounting orientation-25 to 60°C
Temperature / Operation / Vertical mounting orientation-25 to 50°C
Temperature / DeratingSee section "Derating".
Temperature / Storage-40 to 85°C
Temperature / Transport-40 to 85°C
Relative humidity / Operation5 to 95%, non-condensing
Relative humidity / Storage5 to 95%, non-condensing
Relative humidity / Transport5 to 95%, non-condensing
Mechanical properties
NoteOrder 1x terminal block X20TB12 separately. Order 1x bus module X20BM11 separately.
Pitch12.5⁺⁰.² mm

Documentation & CAD

Files hosted by B&R Industrial Automation; links open the official download page.

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Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.