B&R X20PS3300 – Compact 24 VDC Power Supply for X20 I/O and Controllers

The B&R X20PS3300 is a dedicated power supply module for the X20 system, designed to feed the X20 backplane electronics and provide stable 24 VDC field power for sensors and actuators. From my experience, this is the straightforward way to energize a slice of X20 I/O next to your CPU without adding a bulky standalone PSU into the cabinet row. You might notice that it keeps wiring tidy and gives clear status via LEDs, which typically speeds up troubleshooting on busy lines.

Company’s Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in-stock; no more than one month at the latest
• Payment method: 50% advance payment; full payment before delivery
• Express delivery: FedEx, UPS, DHL

Key Features

• Purpose-built for X20 – Slides onto the X20 terminal base to feed the internal backplane and field power in one compact module.
• 24 VDC industrial input – Nominal 24 VDC with a typical operating range of 18–30 VDC, suitable for most machine panels.
• Backplane and field power separation – Helps isolate electronics from actuator loads, reducing nuisance trips in many cases.
• Status LEDs – Quick visual diagnostics for supply and overload states; operators typically resolve issues faster.
• DIN-rail friendly – Uses the X20 base system on DIN rail, keeping cabinet layouts clean and scalable.
• Protection-minded design – Integrated electronic protection and fused feed typical of X20 power modules to safeguard the bus.

Technical Specifications

Related or Supporting Products

• B&R X20PS2100 – Slim power feed module for smaller X20 nodes; typically used when current demand is modest.
• B&R X20PS2200 – Power module variant often selected for higher field load capacity; good for actuator-heavy racks.
• B&R X20TB12 / X20TB52 – Terminal bases required for mounting X20 modules and wiring supply and field power.
• B&R X20BM11 – Bus module for joining X20 slices; handy when spacing power and I/O across cabinet sections.

One thing I appreciate is how the X20PS3300 pairs neatly with a CPU slice and mixed I/O banks. A packaging customer told us they swapped a panel PSU plus breakers for this module and freed 90 mm of rail, while the LED diagnostics cut their restart time after trips. That seems to be a common pattern in fast changeover environments.

Installation & Maintenance

• Cabinet & mounting – Install on DIN rail with the proper X20 terminal base. Maintain at least 50 mm clearance above/below for airflow in most cabinets.
• Wiring – Use a stabilized 24 VDC upstream source. Follow wire gauge per load; ferrules recommended. Keep backplane supply and field power routing tidy to minimize voltage drop.
• Protection & fusing – Provide upstream protection (e.g., 10 A slow-blow or as required by your load and code). Ground the panel and reference 0 V consistently across nodes.
• Environment – Operate within 0–55 °C typical. Avoid conductive dust; IP20 means enclosure protection is required.
• Maintenance – Re-torque terminals during planned downtime, inspect LED diagnostics after trips, and verify 24 V integrity under load. Firmware updates are not applicable to the power module itself.

Quality & Certifications

• Conforms to CE and cULus requirements for industrial control equipment (typ.).
• RoHS-compliant construction.
• Backed by a 365-day warranty from us; genuine new parts supplied.

If you’re sizing the X20PS3300 for a mixed I/O rack, share your estimated backplane and field load; we’ll verify headroom and suggest whether a PS2100/2200 alternative might be a tighter fit or if splitting the rack is the safer route.