Description

PIONEER MAGNETICS PM3398B-6P-1-3P-E 80026-172-23 | Genuine Industrial Power Spare Part

Product Core Brief

Model: PM3398B-6P-1-3P-E, Alternate PN: 80026-172-23
Brand: PIONEER MAGNETICS
Series: PM3398B High Power Industrial AC-DC Power Family
Core Function: Rack-mount AC-DC switching power supply to supply stabilized DC power for industrial control racks
Type: Rack Mount Power Supply Module
Key Specs: 100–240 VAC universal input | 56 VDC / 26.8 A output | 1500 W rated power
Condition Note: Available as new surplus; refurbished units will be clearly marked separately

⚠️ Original series production discontinued, available inventory limited

Key Technical Specifications

Parameter	Specification
Full Part Number	PM3398B-6P-1-3P-E, Drawing No. 80026-172-23
Input Voltage	100–240 VAC, 50 / 60 Hz
Input Rated Current	23 A max
Output Rating	56 VDC, 26.8 A continuous, total 1500 W
Regulation Type	Fully regulated switching power supply
Protection Functions	Overvoltage, overcurrent, short-circuit, thermal shutdown, foldback current limiting
Cooling Method	Internal forced air cooling with integrated fan
Operating Temperature	-20 °C ~ +60 °C (derating required at high altitude)
Storage Temperature	-40 °C ~ +85 °C
Relative Humidity	5% – 95% RH, non-condensing
Safety Certification	UL recognized, CE compliant
Mechanical Form Factor	Standard rack mount enclosed power unit
Altitude Restriction	Derated operation above 10,000 feet per nameplate warning

PIONEER MAGNETICS PM3398B-6P-1-3P-E 80026-172-23

Product Introduction

PIONEER MAGNETICS PM3398B-6P-1-3P-E (80026-172-23) is a heavy-duty enclosed AC-DC switching power supply designed for mission-critical industrial control racks. It converts wide-range mains AC into stable 56 VDC high-current output for DCS, turbine monitoring and continuous process automation hardware.

This power unit incorporates comprehensive built-in fault protection circuits to avoid cascaded equipment damage during abnormal electrical conditions. Internal active cooling maintains stable output under full continuous load. The unit supports long-term 24/7 operation in plant environments, and is widely specified as original equipment power source for many legacy distributed control and machinery monitoring platforms.

Application Scenarios & Pain Points

Power supply failure leads to full rack shutdown for critical continuous production sites. OEM factory lead times often extend multiple months, leaving plants exposed to unplanned outage risks without spare hardware.

Typical application scenarios:

Thermal Power Plants – Turbine Control & DCS Cabinets

Supplies power to boiler control systems, turbine supervisory instrumentation and auxiliary process I/O racks. Unplanned power loss triggers equipment interlock trips.
Petrochemical Facilities – Continuous Process DCS Control

Used for legacy control system racks in refineries and chemical plants running non-stop production cycles.
Oil & Gas Compressor Stations – Onshore Monitoring Cabinets

Provides reliable high-current DC power for field control and vibration monitoring equipment.
Water & Wastewater Treatment – Large SCADA Control Rooms

Suitable for centralized control racks requiring stable high-power DC feed.
Pulp & Paper Mills – Continuous Production Automation

Harsh factory environments demand robust power supplies resistant to dust and temperature fluctuation.

Real Site Case

A thermal power plant encountered a PM3398B-6P-1-3P-E power supply fault last year. Internal fan failure triggered thermal protection shutdown, threatening to interrupt boiler control functions. Official manufacturer delivery lead time reached 9 weeks. The plant could not sustain relying on degraded backup arrangements. They ordered stocked spare module from us. We completed continuous full-load aging testing and shipped within two working days. Maintenance engineers performed replacement during scheduled unit shutdown, restoring full power availability without unplanned downtime. Afterwards the site added one identical spare unit to permanent MRO inventory.

PIONEER MAGNETICS PM3398B-6P-1-3P-E 80026-172-23

Compatibility & Replacement Matrix

PM3398B-6P-1-3P-E (80026-172-23) → PM3398B-6P-1-3P variants with different suffix: Confirm output rating and mounting dimensions; not all suffix revisions are direct drop-in.

PM3398B-6P-1-3P-E → PN 80026-172-23: Exact equivalent, same hardware, dual part marking. Direct replacement.

PM3398B-6P-1-3P-E → PM3398B series other output models: Not interchangeable. Output voltage/current ratings differ.

PM3398B-6P-1-3P-E → Non-Pioneer Magnetics third-party power supplies: Not plug-and-play; verify voltage, current, terminal layout and control signal definition before substitution.

Replacement reminder: Confirm rack total DC load to maintain minimum 20% power margin. Inspect cabinet ventilation and air filter condition after swap.

Quality Control Process

Inbound Inspection

Verify dual part numbers PM3398B-6P-1-3P-E and 80026-172-23 on nameplate. Visual inspection to check enclosure deformation, connector damage, capacitor leakage or traces of prior repair. Record serial information for traceability.
Live Bench Testing

Connect power supply to programmable electronic load. Run continuous 24-hour full-load aging test. Monitor output voltage stability, fan operation and thermal behavior. Validate all protection shutdown functions. Generate formal test records.
Electrical Characteristic Test

Carry out continuity and insulation resistance testing using Fluke 115 multimeter. Simulate input voltage fluctuation to confirm stable DC output regulation.
Label & Hardware Documentation

Capture clear photos of front nameplate, terminals and ventilation grille. All test measurement data will be archived.
Final Packing

Wrap unit with anti-static material and bubble cushioning, placed inside rigid export carton. Attach QC Passed label with inspection date. Test photos and records can be shared upon request.

Field Pitfall Guide

Ignoring high altitude power derating rule

I have supported a site installed this power supply at high elevation. Engineers ran full load without derating, and thermal protection randomly activated under warm ambient temperature. Always follow the altitude warning printed on the unit nameplate.
Neglecting cooling fan health inspection

Fan wear is the most common failure mode for this power supply. Gradual fan speed reduction raises internal operating temperature, shortening electrolytic capacitor service life.
Incorrect terminal torque during wiring

Over-tightening damages terminal lugs; under-tightening creates high-resistance connections leading to overheating under heavy load. Follow manufacturer specified torque values.
Operating continuously without adequate power margin

Running the power supply consistently near maximum rated output accelerates component aging. Maintain at least 20% spare capacity for transient load spikes.
Skipping post-replacement load verification

Many technicians only confirm the unit powers on. Connect full actual rack load and monitor output voltage for several hours to detect hidden instability.