Pioneer Magnetics PM3398B-6P-1-3P-E Industrial Power Supply – PM3398B Series

PM3398B-6P-1-3P-E: Six-Rail DC Distribution Architecture for High-Density Industrial Control Systems

The Pioneer Magnetics PM3398B-6P-1-3P-E is a chassis-mount, three-phase AC input power supply delivering six independently regulated DC output rails. Designed for continuous-duty deployment in industrial control panels, distributed control systems (DCS), and automated manufacturing lines, this unit consolidates multi-voltage DC distribution into a single, mechanically integrated assembly. Its three-phase input topology inherently balances load across all three line conductors, reducing neutral current and minimizing harmonic distortion at the point of common coupling — a critical consideration in facilities operating dense arrays of switching loads.

Unlike single-phase topologies that concentrate full load current on one line, the PM3398B-6P-1-3P-E draws symmetrically from L1, L2, and L3. This characteristic reduces I²R losses in the supply cabling, lowers thermal stress on upstream protection devices, and permits operation at full rated output without derating in standard 400 V / 480 V industrial distribution environments. The six-output configuration eliminates the need for multiple discrete single-output supplies, reducing panel footprint, inter-unit wiring, and the number of independent failure points within the power distribution subsystem.

Real-time Stock & RFQ: [email protected] | WhatsApp: +86 18359268345

Technical Parameters

Hardware Logical Analysis

Three-Phase Rectification and Power Factor Topology
The PM3398B-6P-1-3P-E employs a three-phase full-wave rectifier front end, producing a DC bus with a ripple frequency of 6× the line frequency (300 Hz at 50 Hz mains, 360 Hz at 60 Hz mains). This elevated ripple frequency significantly reduces the capacitance required on the bulk DC bus to maintain acceptable ripple voltage, allowing the use of smaller, lower-ESR capacitors with improved thermal performance and longer operational life compared to single-phase designs operating at 100/120 Hz ripple. The result is a more compact, thermally stable intermediate DC bus that feeds the downstream DC-DC conversion stages for each output rail.

Multi-Output Regulation Architecture
Each of the six output rails is independently regulated, meaning load transients on one output — such as a PLC I/O module switching a high-current solenoid — do not propagate as cross-regulation disturbances to adjacent rails powering sensitive analog instrumentation or communication interfaces. This output independence is achieved through dedicated post-regulation stages per rail, each with its own feedback loop and error amplifier. The consequence for system designers is that the PM3398B-6P-1-3P-E can simultaneously power mixed-voltage loads (e.g., 5 VDC logic, 12 VDC relay coils, 24 VDC field devices) without requiring external LC filters or additional point-of-load regulators.

EMC Design and Conducted Emission Control
The three-phase input topology inherently attenuates common-mode noise injection back onto the supply network. The balanced three-wire input presents a symmetrical impedance to the mains, reducing differential-mode conducted emissions. Internal X and Y capacitors, combined with common-mode chokes on the input stage, suppress high-frequency switching noise from propagating upstream. For installations requiring compliance with IEC 61000-6-4 (industrial emission limits) or EN 55011 Class A, the PM3398B-6P-1-3P-E’s input filter architecture provides a solid baseline, though site-specific EMC validation remains the integrator’s responsibility.

Thermal Management and Derating Characteristics
The open-frame chassis design facilitates forced-air cooling when installed in ventilated control enclosures. The three-phase input load balancing reduces per-phase RMS current, which directly lowers I²R heating in the input transformer windings. This thermal advantage translates to a flatter derating curve at elevated ambient temperatures compared to equivalent single-phase designs, allowing the unit to sustain a higher percentage of rated output power in warm industrial environments without requiring oversized cooling infrastructure.

System Integration Benefits

• Panel Space Reduction: Consolidating six DC output rails into one chassis-mount unit eliminates the DIN-rail footprint of five additional single-output supplies, freeing space for I/O expansion modules, safety relays, or additional field termination capacity.
• Simplified Wiring Topology: A single three-phase AC input connection replaces multiple single-phase AC feeds, reducing the number of circuit breaker poles, terminal blocks, and inter-device wiring runs required in the power distribution section of the panel.
• Deterministic Load Isolation: Independent per-rail regulation ensures that high-current transient loads (motor starters, solenoid valves, pneumatic actuators) do not induce voltage sags on rails supplying CPU modules, communication cards, or analog signal conditioning circuits.
• Reduced Spare Parts Inventory: A single PM3398B-6P-1-3P-E unit replaces multiple SKUs in the maintenance spare-parts list, lowering inventory carrying cost and simplifying the bill of materials for OEM panel builders and system integrators.
• Improved Power Quality at the Bus: The 300/360 Hz ripple frequency of the three-phase rectified DC bus is more easily filtered by downstream DC-DC converters than the 100/120 Hz ripple of single-phase designs, resulting in lower output ripple and noise on each regulated rail.
• Compatibility with Standard Industrial Voltages: Three-phase input compatibility with 380–480 VAC industrial distribution eliminates the need for step-down autotransformers in facilities operating standard three-phase power infrastructure.
• Diagnostic Transparency: The multi-output architecture allows per-rail current monitoring (with appropriate external shunts or Hall-effect sensors) to provide granular load diagnostics, enabling predictive maintenance teams to identify abnormal current draw on individual subsystems before a fault condition develops.
• Galvanic Isolation for Ground Loop Elimination: Input-to-output isolation breaks ground loops between the AC supply ground and the DC system ground, preventing common-mode noise from AC-side ground currents from corrupting analog measurement signals or communication bus references in the control system.

Quality Assurance & Global Logistics

Every PM3398B-6P-1-3P-E unit supplied by siemensplc.com is sourced through verified industrial distribution channels with full traceability to Pioneer Magnetics’ authorized supply chain. Units are inspected upon receipt for physical integrity, label authenticity, and packaging condition. Storage is maintained in ESD-safe, climate-controlled warehousing at our Xiamen, China facility to preserve component integrity throughout the storage period.

All products are shipped with original manufacturer packaging where available. Batch and lot documentation is available upon request for quality-critical procurement processes. We do not supply counterfeit, refurbished, or remarked components. Each shipment is covered by a 12-month warranty against manufacturing defects, with technical support available via email and WhatsApp throughout the warranty period.

From our Xiamen operations hub, we dispatch to destinations across Asia-Pacific, Europe, the Middle East, and the Americas via DHL Express, FedEx International Priority, and UPS Worldwide Expedited. Standard in-stock orders are processed and handed to the carrier within 1–2 business days. Expedited same-day dispatch is available for urgent project requirements — contact us directly to confirm cut-off times and carrier options for your destination.

Export documentation including commercial invoices, packing lists, certificates of origin, and certificates of conformance (CoC) are prepared for all international shipments. HS code classification and customs value declaration are handled in accordance with applicable trade regulations to minimize clearance delays at the destination port.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
Location: Xiamen, China
© 2026 siemensplc.com. All rights reserved.