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The PIONEER MAGNETICS PM33988-6P-1-3P-E is a high-power, three-phase AC-to-DC power conversion module engineered for mission-critical applications demanding extreme reliability, high efficiency, and robust environmental resilience. Designed primarily for defense, aerospace ground support, and heavy industrial systems, the PIONEER MAGNETICS PM33988-6P-1-3P-E delivers up to 11.2 kW of regulated 28 V DC output at 400 A continuous current, making it ideal for powering radar transmitters, electromechanical actuators, large-scale battery charging stations, and industrial motor drives.
Built on PIONEER MAGNETICS’ proven modular power architecture, the PIONEER MAGNETICS PM33988-6P-1-3P-E features six-phase active power factor correction (PFC), minimizing harmonic distortion on the AC mains and ensuring compliance with MIL-STD-704 and IEC 61000-3-2 standards. Its ruggedized chassis supports conduction or forced-air cooling (depending on suffix “-E”), while conformal-coated PCBs and potting compounds protect internal electronics against humidity, salt fog, and airborne contaminants. As a member of the PM33xxx family, the PIONEER MAGNETICS PM33988-6P-1-3P-E exemplifies the brand’s commitment to delivering field-proven power solutions where failure is not an option.
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | PM33988-6P-1-3P-E |
| Manufacturer | PIONEER MAGNETICS |
| Product Type | Three-Phase High-Power AC-DC Power Supply Module |
| Input Voltage | 208/230 V AC, 3-phase + neutral, 47–63 Hz |
| Input Configuration | Six-phase rectification (dual 3-phase banks) |
| Output Voltage | 28 V DC (adjustable ±10%) |
| Maximum Output Current | 400 A continuous |
| Maximum Output Power | 11,200 W (11.2 kW) |
| Efficiency | ≥92% at full load |
| Power Factor | >0.99 (with PFC active) |
| Cooling Method | Forced air (suffix “-E” indicates enhanced airflow design) |
| Operating Temperature | –40°C to +85°C (derating above 70°C) |
| Protection Features | Over-voltage, over-current, over-temperature, short-circuit |
| Dimensions (W×H×D) | Approx. 482 mm × 177 mm × 508 mm (19″ rack-mountable) |
Main Features and Advantages
Extreme environmental tolerance: The PIONEER MAGNETICS PM33988-6P-1-3P-E is built to operate reliably in the harshest conditions—from arctic oil fields to desert-based radar installations. Its wide operating temperature range (–40°C to +85°C) and resistance to shock/vibration (per MIL-STD-810G) ensure stable performance where commercial-grade supplies would fail. Internal components are selected for long-life operation under thermal cycling stress.
High-efficiency, low-distortion power conversion: Leveraging advanced six-phase PFC topology, the PIONEER MAGNETICS PM33988-6P-1-3P-E draws clean sinusoidal current from the grid, reducing transformer loading and avoiding utility penalties for poor power quality. At 92%+ efficiency, waste heat is minimized, lowering cooling costs and extending component lifespan—critical in sealed or remote enclosures.
Scalable and serviceable architecture: Multiple PM33988-6P-1-3P-E units can be paralleled using built-in current-sharing circuitry to achieve higher power levels (e.g., 22.4 kW with two units). Hot-swap capability (when integrated into compatible backplanes) enables maintenance without system shutdown. Front-panel status LEDs and analog/digital monitoring interfaces (optional) provide real-time insight into voltage, current, and fault conditions.
Military-grade reliability and certification: Designed in accordance with MIL-STD-461 (EMI/EMC), MIL-STD-704 (aircraft power characteristics), and DO-160 (avionics environmental), the PIONEER MAGNETICS PM33988-6P-1-3P-E meets stringent requirements for defense and aerospace programs. Its MTBF exceeds 100,000 hours, reflecting PIONEER MAGNETICS’ decades of expertise in high-reliability power systems.
Application Field
The PIONEER MAGNETICS PM33988-6P-1-3P-E is deployed wherever high-current, ultra-stable DC power is non-negotiable. In naval combat systems, it powers phased-array radar arrays and electronic warfare suites that require ripple-free 28V DC during shipboard maneuvers and electromagnetic interference events. Similarly, in ground-based air defense platforms, the PIONEER MAGNETICS PM33988-6P-1-3P-E ensures uninterrupted operation of missile guidance computers and communication relays.
Within industrial test facilities, the module serves as the backbone of high-power load banks and EV battery cyclers, delivering precise, programmable current profiles for accelerated life testing. In renewable energy integration, it functions as a bidirectional (if configured) DC link for microgrid stabilization or hydrogen electrolyzer control. For semiconductor manufacturing equipment requiring clean, high-current DC for plasma generation, the PIONEER MAGNETICS PM33988-6P-1-3P-E’s low output noise and fast transient response prevent process drift.
Oil & gas drilling rigs also utilize this module to power downhole telemetry systems and hydraulic control units in explosive atmospheres—thanks to its intrinsic safety compatibility and rugged enclosure options. Across all these domains, the PIONEER MAGNETICS PM33988-6P-1-3P-E stands as a benchmark for power integrity under pressure.
Related Products
PM33988-6P-1-3P-F: Variant with liquid cooling instead of forced air; choose PM33988-6P-1-3P-E for standard fan-cooled environments.
PM33977: Lower-power (7 kW) sibling in the same series; suitable for smaller radar or comms payloads.
PM33100: Higher-voltage (270 V DC) output model for aircraft ground power units (GPU); shares similar architecture.
PM33988-6P-1-1P-E: Single-phase input version for sites lacking 3-phase infrastructure.
ABB PFSA140: Not directly related, but often used downstream to distribute PM33988 output to PLC racks in hybrid systems.
GE URXHH: Industrial power module; contrast with PM33988-6P-1-3P-E’s focus on high-current DC rather than control logic supply.
