X20PS9602 B & R Automation
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The X20PS9602 is a power supply module manufactured by B & R Automation as part of the X20 Fieldbus Input Output Modules series. It provides an external supply voltage of 24 VDC and delivers an internal I/O power output of 240 W with a maximum I/O summation current of 10 Amps. The unit has a maximum operating elevation of 2000 meters and can withstand up to 95 percent relative humidity.
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Product Description:
The X20PS9602 power supply module is produced by B&R Automation for the X20 Fieldbus I/O Modules series. Installed beside the controller or a distributed node, the device converts an incoming 24-volt feed into the rail voltages required by the X20 backplane. Its role within an automation cell is to keep the I/O electronics energized so that digital and analog signals can reach the CPU without interruption, even when several actuators engage simultaneously.
The module draws 0.2 W from the backplane, helping prevent voltage sag on densely populated racks. From that intake, it routes up to 7 W to the internal bus, providing logic power for neighboring terminal slices. The primary source is an external 24 VDC supply, and this rating must be considered when selecting fuses and cabinet wiring. Communication over the proprietary X2X interface introduces an additional demand of 0.6 W, which should be included when calculating heat dissipation in sealed enclosures. For actuators that need more energy, the unit delivers up to 240 W through an auxiliary rail, making it suitable for clusters of pneumatic valves or high-density sensor islands without requiring a second feeder.
The unit can source up to 10 A of load current through its screw terminals, allowing connected solenoids or indicator clusters to operate from the same supply point. The feed path has no galvanic isolation, so field-side faults are directly referenced to the control ground and require suitable external protection. The module can operate at altitudes up to 2000 m above sea level, subject to the applicable installation conditions. Condensation must be prevented, and the ambient relative humidity must remain below 95% RH. Enclosure ventilation should account for the installation altitude, expected moisture levels, and heat produced by the module and its connected loads.
