Pioneer Magnetics PM3326B-6-1-2-E | 1000W 56VDC 17.9A AC-DC Power Supply
Pioneer Magnetics PM3326B-6-1-2-E | 1000W 56VDC 17.9A AC-DC Power Supply - Image 2
Pioneer Magnetics PM3326B-6-1-2-E | 1000W 56VDC 17.9A AC-DC Power Supply - Image 3

Pioneer Magnetics PM3326B-6-1-2-E | 1000W 56VDC 17.9A AC-DC Power Supply

  • Model: PM3326B-6-1-2-E
  • Brand: Pioneer Magnetics
  • Series: PM3326B AC-DC power module
  • Core Function: Converts universal AC input to regulated 56 VDC for industrial and communications loads
  • Type: Single-output AC-DC power supply
  • Key Specs: 1000 W output; 56 VDC at 17.9 A; 90–264 VAC input; >90% efficiency; convection-cooled
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Description

Key Technical Specifications

Parameter Specification
Part Number PM3326B-6-1-2-E
Alternate P/N 80026-529-01
Input Voltage 90–264 VAC
Input Current 18.2 A
Output Voltage 56 VDC
Output Current 17.9 A
Output Power 1000 W
Efficiency >90%
Isolation Voltage 2 kVrms
Hold-Up Time 20 ms
Protections Overvoltage, short-circuit
Cooling Natural convection
Operating Temperature -20 to 70 °C
Storage Temperature -40 to 85 °C
Humidity 5–95% RH, non-condensing
Dimensions 270 × 260 × 40 mm
Weight 3.87 kg

 

Product Introduction

Pioneer Magnetics PM3326B-6-1-2-E is a 1 kW AC-DC power supply that delivers 56 VDC at 17.9 A from a universal 90–264 VAC input. It is typically used where a single, stable DC bus is required for industrial equipment, communications hardware, UPS subsystems, or test systems.The unit is convection-cooled and does not rely on an internal fan, which reduces dust ingestion and fan-failure risk. Its 20 ms hold-up time helps ride through brief AC dips, and the 2 kVrms isolation supports safer system integration. Because this is a legacy supply, always verify the label, revision, and connector layout before deployment.

Installation & Configuration Guide

Preparation — about 10 minutes

  1. Verify the nameplate reads PM3326B-6-1-2-E and matches the required 56 VDC / 17.9 A output.
  2. Confirm the AC source is within 90–264 VAC and can supply at least 18.2 A at minimum input voltage.
  3. Check that the load does not exceed 1000 W or 17.9 A continuous.
  4. Ensure airflow around the module; convection cooling needs clearance above and below the unit.
  5. Record the serial number and label data before installation.

Removal — 5–10 minutes

  1. Disconnect AC power and verify zero voltage at the input terminals.
  2. Disconnect the DC load and any remote On/Off or monitoring signals.
  3. Remove mounting hardware.
  4. Place the unit in an ESD-safe container if it will be stored or returned.

Installation — about 10 minutes

  1. Mount the supply securely using the specified fasteners.
  2. Keep AC input wiring separated from DC output and signal wiring.
  3. Verify correct polarity on the 56 VDC output before connecting the load.
  4. Confirm the DC return path is sized for 17.9 A continuous.
  5. Do not block ventilation surfaces.

Power-On & Test — about 10 minutes

  1. Measure AC input voltage before energizing.
  2. Apply AC power with no load if possible.
  3. Measure the DC output voltage; confirm it is 56 VDC and stable.
  4. Apply load gradually and monitor voltage regulation and temperature.
  5. If the unit trips or shows no output, disconnect the load and recheck input voltage, polarity, and short-circuit conditions.

 

Troubleshooting Quick Reference

Symptom Most Likely Cause First Check
No DC output No AC input or blown input protection Measure AC input at the supply terminals
Output voltage low Overload or input undervoltage Measure load current and AC input voltage
Intermittent output Loose input/output terminals Retorque AC and DC connections
Overheating Blocked airflow or excessive ambient temperature Check clearance around the module and ambient temp
Output trips under load Short circuit or overcurrent Disconnect load; test output with a known resistive load
Unit runs but output is noisy Poor DC wiring or failed filtering Inspect DC cabling, grounding, and load connections

Dimensions, Mounting & Wiring Notes

  • Dimensions: 270 × 260 × 40 mm.
  • Weight: 3.87 kg.
  • Mounting: Panel or chassis mount; confirm exact hole pattern from the OEM drawing.
  • Input wiring: Use conductors rated for at least 18.2 A AC and local code requirements.
  • Output wiring: Size DC conductors for 17.9 A continuous with appropriate fuse or breaker protection.
  • Cooling: Natural convection only. Do not cover the module or install it in a sealed enclosure without thermal verification.
  • ESD handling: Treat internal electronics as sensitive. Avoid touching exposed circuitry.

 

FAQ

What output does PM3326B-6-1-2-E provide?
It is rated for 56 VDC at 17.9 A, about 1000 W.Can it run on 120 VAC and 230 VAC?
Yes. The input range is listed as 90–264 VAC.Does it have a fan?
No. It uses natural convection cooling.Is this a DIN-rail supply?
No. It is a larger chassis/panel-mount power module, not a standard DIN-rail PSU.Can I use it for a 48 VDC system?
Only if the system accepts 56 VDC. Many “48 V” telecom or battery systems tolerate 56 VDC, but this must be confirmed with the equipment manufacturer.Do you have the original Pioneer Magnetics datasheet?
Not always. This part is legacy. We verify the nameplate, serial number, and basic function before shipment.Is it new or refurbished?
Both conditions may be available. Each item is listed as New Surplus, Factory Sealed, or Refurbished (Tested). The exact condition is confirmed per order.

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