ABB PU516 3BSE013064R1 Power Supply Unit – 24 VDC Redundant PSU for AC 800M & System 800xA

Description

The ABB PU516 (Order Code: 3BSE013064R1) is a high-performance, 24 VDC industrial power supply unit designed specifically for use in ABB’s AC 800M programmable automation controllers (PACs) and System 800xA distributed control systems (DCS). Delivering up to 160 watts of continuous power (24 VDC @ 6.7 A), the PU516 ensures stable, clean, and reliable operation of CPUs, I/O modules, communication interfaces, and other critical control components.

Engineered for mission-critical applications, the PU516 supports redundant operation when paired with a second PU516 unit via an optional redundancy module (e.g., PR512 or built-in diode coupling), enabling seamless failover during power anomalies—essential in continuous-process industries like refining, power generation, and chemical manufacturing.

Housed in a compact, metal DIN-rail mountable enclosure, the PU516 features universal AC input (100–240 VAC, 50/60 Hz), high efficiency (>85%), and comprehensive protection against overvoltage, overload, short circuits, and thermal faults. Visual status indicators (green PWR, red FAULT) allow quick diagnostics during commissioning or maintenance.

ABB PU516 3BSE013064R1

Technical Specifications

Main Features and Advantages

✅ True Redundancy Capability
When configured in parallel with another PU516 and a redundancy module, the system continues operating even if one PSU fails—critical for uninterrupted control in refineries, nuclear facilities, or water tunnels.

✅ Universal Input for Global Deployment
Accepts 100–240 VAC without manual switching, simplifying spares management and enabling deployment across North America, Europe, and Asia with the same hardware.

✅ Robust Design for Industrial Environments
Conformal-coated PCBs, metal housing, and wide temperature tolerance ensure reliability in dusty, humid, or electrically noisy settings—common in steel mills, offshore rigs, and pump stations.

✅ Easy Integration & Maintenance
Plug-and-play compatibility with ABB’s TK801V, TK811V, and other I/O bases. Hot-swappable design (in redundant setups) allows replacement without shutting down the controller.

Application Field

• Power Generation: Powers AC 800M turbine governors and boiler safety systems where loss of control could trigger plant trips.
• Oil & Gas: Supplies redundant power to ESD (Emergency Shutdown) and F&G (Fire & Gas) controllers on offshore platforms.
• Water/Wastewater: Ensures continuous operation of lift station PLCs and SCADA RTUs in remote, unattended locations.
• Mining & Minerals: Drives conveyor control panels and mill automation systems exposed to vibration and dust.
• Pharmaceuticals: Supports GMP-compliant batch control systems requiring validated, stable power sources.

Related Products

• PR512(3BSE013250R1): Redundancy module for PU516/PU518 power supplies
• PU518(3BSE013192R1): Higher-power (240W) version of the PU516
• TK801V: I/O base for AC 800M that accepts PU516 power modules
• AC 800M CPU (PM86x series): Controller platform commonly powered by PU516
• System 800xA Engineering Station: Configuration environment for full-system integration
• DIN Rail Fuse Holder: Recommended for input circuit protection per IEC standards

ABB PU516 3BSE013064R1

Installation and Maintenance

Installation Tips:

• Mount on a ventilated DIN rail with ≥50 mm clearance above/below for cooling.
• Use properly rated circuit breakers (e.g., 10 A) on the AC input.
• In redundant mode, connect both PSUs to independent AC sources if possible.
• Torque terminal screws to 0.6 Nm to prevent overheating.

Maintenance Recommendations:

• Inspect LEDs monthly: steady green = normal; red = fault (check load, input voltage, or internal failure).
• Clean ventilation slots annually with dry compressed air.
• Test redundancy by simulating a failure (e.g., disconnect one PSU)—system should remain online.
• Replace units showing output voltage drift (>±5%) or intermittent shutdowns.