Product Short Description
Product Overview
This module is a custom high-current variant built on the PM3398B high-power planar magnetic base platform, designated by parallel winding suffix code 6P-1-3P-E and exclusive internal engineering drawing number 80026-172-23. The letter P in the suffix code represents parallel multi-strand winding design for high-current load operation: 6P means six parallel primary winding strands, 3P means three parallel secondary copper foil winding groups, E represents enhanced high-temperature thermal encapsulation insulation grade.
Description
Input Electrical Fixed Parameters
Three-phase AC input voltage range: 380 VAC ~ 480 VAC industrial three-phase power grid input
Input operating frequency: fixed 47 Hz ~ 63 Hz industrial grid frequency
Built-in active power factor correction circuit, power factor ≥0.95 under full-load 26.8 A output operating state
Three-phase input phase loss protection, input overvoltage surge protection and input reverse phase sequence protection integrated on input terminal connector
Fixed output DC voltage: 24 VDC, output voltage regulation tolerance ±1% under full input voltage fluctuation and full load current change conditions
Continuous rated output current: 26.8 A, total rated output power 643.2 W
Transient peak output current: 38 A, sustainable for maximum 10 seconds to meet heavy-load equipment instantaneous startup surge current demand
Line regulation value: ±0.2% across full 380~480 VAC three-phase input voltage fluctuation range
Load regulation value: ±0.5% from 0 A no-load to 26.8 A full-load output current variation
Output ripple and noise peak-to-peak value: less than 50 mV under full-load continuous operation
Primary three-phase winding to secondary output winding isolation withstand voltage: 2500 VAC, 1 minute continuous withstand without insulation breakdown, leakage current ≤1 mA
Internal winding insulation class: F-class high-temperature resistant insulation material, maximum sustainable continuous operating temperature 155°C
Insulation resistance between primary winding, secondary winding and aluminum rack chassis ≥100 MΩ measured with 500 VDC insulation resistance tester
Standard PM3398B base platform 5-inch rack outer dimension: 127 mm Width × 127 mm Depth × 292 mm Height
Mounting method: Horizontal rack locking installation, customized Elcon drawer hot-plug connector pin layout defined exclusively by drawing 80026-172-23
Housing material: Thickened extruded aluminum alloy rack shell, high-flow automatic speed regulation forced air cooling fan assembly built inside rack
Net complete module weight: 5.2 kg
Continuous full-load operating temperature range: 0°C ~ +50°C, can stably output full 643.2 W rated power without power derating within this temperature interval
Storage temperature range with power disconnected: -40°C ~ +85°C
Relative humidity adaptability range: 5% ~ 95% non-condensing air operating environment
Mechanical compliance standard: IEC 60068-2-6 industrial vibration and shock resistance specification
EMC & Safety Certification: IEC 61000-6-2 industrial electromagnetic immunity standard, UL industrial power supply safety certification, CE electromagnetic compatibility certification
Three-phase input phase loss automatic shutdown protection
Input overvoltage and undervoltage lockout protection
Output overcurrent multi-stage current limiting protection
Output short-circuit continuous lockout protection with automatic fault reset
Internal planar magnetic winding and power switching tube over-temperature power reduction shutdown protection
Output overvoltage clamping protection to avoid breakdown of rear-end servo control board and battery charging circuit components
- Multi-Parallel High-Current Planar Winding Custom Structure
Suffix code 6P: Six parallel enameled copper wire strands for primary three-phase winding, disperses input three-phase high current across multiple parallel strands to reduce single wire current density and lower winding heat generation
Suffix code 3P: Three groups of parallel laminated copper foil winding stacks for secondary output side, thick multi-layer copper foil structure minimizes AC high-frequency winding loss under continuous 26.8 A large output current
Suffix code E enhanced grade encapsulation: High thermal conductivity flame-retardant epoxy resin fully encapsulates entire planar magnetic core and multi-parallel winding assembly, strengthens heat transfer between winding heat sources and aluminum rack heat dissipation baseplate, supports long-term heavy-load continuous operation without excessive temperature rise
- High-Current PCB Fixed Layout Design
All secondary output power circuit traces adopt ultra-wide thick copper multi-layer PCB layout to reduce circuit conduction resistance and avoid abnormal heating under 26.8 A continuous large current load, PCB footprint strictly follows drawing 80026-172-23 fixed layout specification
- Exclusive Connector Pin Definition
Front panel Elcon drawer-type hot-plug power connector pin assignment layout is uniquely defined by internal drawing code 80026-172-23, pinout cannot be replaced with other PM3398B series variant connector layouts, mismatched wiring will cause three-phase input phase loss, output overvoltage or short-circuit faults leading to permanent module hardware burnout damage
The overall power conversion flow adopts the universal PM3398B base platform multi-stage AC-DC power conversion architecture, all electrical parameters, multi-parallel winding turns ratio and thermal encapsulation performance indicators are factory pre-calibrated and fixed according to drawing 80026-172-23 customized specifications. The six-parallel primary winding and three-parallel secondary copper foil winding design disperses high operating current across multiple parallel conductive paths, drastically reducing winding current density and internal heat generation under heavy continuous load operation. The enhanced forced air cooling fan with automatic speed regulation dynamically increases airflow volume when internal temperature rises, maintaining stable magnetic core and circuit board operating temperature within safe threshold range during long-term full-load operation. All fault protection trigger current, voltage and temperature threshold values are locked by factory firmware, field users cannot adjust protection parameters through external configuration software or hardware potentiometers.
All mechanical rack mounting, three-phase power wiring, cabinet environmental layout and protective grounding installation rules follow the universal PM3398B base platform installation standard specifications, with one exclusive customized limitation: front panel Elcon three-phase input and DC output power connector wiring must strictly follow drawing 80026-172-23 fixed pin assignment definition, cross-use of other PM3398B variant connector wiring pin layouts is prohibited, mismatched wiring will trigger input phase loss protection or output short-circuit fault and permanently damage module internal high-power components.
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All general operation, maintenance, troubleshooting and spare parts storage specifications follow the universal PM3398B base platform maintenance standard rules, with exclusive customized precautions for this variant:
- Spare part replacement restriction: When replacing damaged modules on production heavy-load equipment, only the complete full part number PM3398B-6P-1-3P-E with internal drawing reference code 80026-172-23 can be used as qualified replacement spare parts; other PM3398B series suffix variant models with different parallel winding configuration codes and drawing numbers cannot be interchanged for equipment replacement use, mismatched variants cannot provide stable 26.8 A high-current output and will cause rear-end servo drive and battery charging equipment burnout damage.
- Engineering document and procurement specification requirement: All equipment system schematic design, cabinet wiring PCB layout, production equipment BOM and spare parts procurement documents must record the complete full part number including parallel winding suffix codes and exclusive internal drawing reference number 80026-172-23, generic PM3398B base model number cannot replace the complete full part number for engineering design and procurement work.
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