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Core Product Summary
The Pioneer Magnetics PM3326B-6-1-2-E is a 1000 W AC-to-DC switching power supply from the PM33xx PowerFactor series, the manufacturer’s power-factor-corrected front-end line. The “-6” option in the model number designates the wide AC input range of 90 to 264 VAC, allowing the unit to operate from single-phase or three-phase supply lines at 50/60 Hz without hardware changes between regions.
As a PFC front end, it converts the AC line into regulated, isolated DC output for downstream loads, with power-factor correction on the input stage. The unit uses internal forced air cooling and delivers continuous full output power over an ambient operating range of 0 °C to +50 °C. Overvoltage protection on this series latches a shutdown, which clears after the input line is removed for approximately 30 seconds and reapplied.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product type | AC-to-DC switching power supply (PFC front end) |
| Series | Pioneer Magnetics PM33xx PowerFactor series |
| Maximum output power | 1000 W |
| AC input range (option -6) | 90–264 VAC, 50/60 Hz, single-phase or three-phase |
| Input power factor | Corrected (PFC input stage) |
| Output | Single output; isolated DC (output voltage configuration per full model number) |
| Cooling | Internal forced air |
| Operating temperature (full power) | 0 °C to +50 °C ambient |
| Overvoltage protection | Latched shutdown at approx. 125% ±5% of nominal output; clears after line removal and reapplication |
| Output voltage adjustment | ±10% of nominal |
| Voltage stability | ±0.1% over 24 hours after warm-up |
| Safety standards (series) | UL1950, CSA 22.2 No. 950, TÜV to EN60950 |
System Compatibility & Integration Requirements
| Item / Dependency | Verified Requirement | Practical Note |
|---|---|---|
| AC input supply | 90–264 VAC, 50/60 Hz, single-phase or three-phase (option -6) | Circuit protection and input wiring must be rated for the actual line used |
| Output configuration | Defined by the full model-number suffix | Confirm output voltage/current against the unit nameplate before ordering |
| Installation environment | 0 °C to +50 °C ambient for full 1000 W output | Derisk cabinet cooling by including the unit’s heat dissipation in the enclosure thermal budget |
| Fault recovery | OVP latches until input line is removed ~30 s and reapplied | Plan maintenance access or a remote input disconnect if automatic recovery is expected |
| Output adjustment | ±10% trim of nominal output voltage | Useful for load compensation; do not use trim to compensate for an incorrect output configuration |
Detailed Product Overview
The PM3326B-6-1-2-E belongs to the PM33xx PowerFactor series, which Pioneer Magnetics defines as its AC-to-DC converter line with power-factor-corrected input stages. Within the PM33xx family, the PM3326 occupies the 1000 W maximum-power class, which sets the ceiling on what the converter can deliver to the load.
The “-6” option is the most integration-relevant element of the model number: it specifies the wide input range of 90 to 264 VAC. In practical terms, this means the same hardware can be wired to a nominal 120 VAC or 230 VAC supply line, in single-phase or three-phase configurations, which simplifies spares stocking for plants operating across different supply standards. The input stage is power-factor corrected, reducing harmonic current drawn from the line — a requirement in many facility power-quality specifications.
Engineers specifying this unit should verify the exact DC output voltage and current of their specific configuration from the unit’s nameplate or the manufacturer’s model-number configuration record before purchase, because the PM33xx series is built in multiple output-voltage configurations and the suffix codes define the electrical build. The wide-input option does not vary between builds, but the output side does.
Protection behavior matters for system design. On this series, the overvoltage protection circuit shuts the unit down in a latched condition at approximately 125% of nominal output voltage; the latch does not clear until AC input is removed for about 30 seconds and then reapplied. This behavior suits unattended installations where a fault condition should not allow automatic oscillation between trip and restart, but it means a remote-reset capability may need to be designed into the distribution path if rapid recovery is required.
Thermal design is the other main constraint. The unit provides full rated power from 0 °C to +50 °C ambient with internal forced air cooling, so the enclosure must admit airflow and the heat load of both logic and downstream loads should be included in cabinet cooling calculations.
PM3326B-6-1-2-E
PM3326B-6-1-2-E
Dimensions, Mounting & Connection Notes
- The PM33xx front-end units in this power class are housed in Pioneer Magnetics’ traditional 5 × 5 inch front-end package format, with 1000 W and 1200 W models also offered in 2U package variants depending on the specific build.
- Cooling is internal forced air; the mounting location must permit free airflow into and out of the unit.
- Input connection is to the AC line (90–264 VAC); overvoltage shutdown recovery requires removing AC input for approximately 30 seconds.
- Safety certifications for the series are referenced to UL1950, CSA 22.2 No. 950, and TÜV to EN60950.
FAQ
What is the Pioneer Magnetics PM3326B-6-1-2-E?
It is a 1000 W AC-to-DC switching power supply from Pioneer Magnetics’ PM33xx PowerFactor series, with a power-factor-corrected, wide-range AC input stage.
What does the “-6” in the model number mean?
It designates the wide AC input range option of 90 to 264 VAC, usable on single-phase or three-phase, 50/60 Hz supply lines.
How much power can it deliver, and over what temperature range?
The PM3326 is rated in the 1000 W maximum-power class of the PM33xx series, and delivers full output power over an ambient range of 0 °C to +50 °C with internal forced air cooling.
What safety standards does the series comply with?
The PM33xx front-end series is documented to UL1950, CSA 22.2 No. 950, and TÜV to EN60950.
How does the overvoltage protection behave?
OVP shuts the unit down in a latched state at approximately 125% ±5% of nominal output voltage; the latch clears only after AC input is removed for about 30 seconds and reapplied.
Can the output voltage be adjusted?
Yes, the series provides an output adjustment range of ±10% of nominal, with a voltage stability of ±0.1% over a 24-hour period after warm-up.
