Foxboro IPM2-P0904HA I/A Series Industrial Power Module

Description

Product Introduction & Engineering Value

I’ve seen these modules keep older I/A Series cabinets running long after newer power supplies became the standard. The IPM2-P0904HA is an Industrial Power Module designed for Foxboro I/A Series systems. It accepts a selectable AC input (100, 120, 220, or 240 VAC) and delivers a regulated 39 VDC output at approximately 1.7 A continuous.

Status LEDs provide a quick visual indication of module health. The unit is intended for installation in compatible I/A Series power or chassis positions and was commonly used to supply internal logic or specialty power rails in earlier system generations. While later systems moved to the FPS400-24 family for 24 V baseplate power, the IPM2-P0904HA remains relevant for maintaining or expanding legacy installations that still rely on the 39 V rail.

Technical Specifications

Field Application & The “Trench” Experience

A Midwest chemical plant still running an older I/A Series node needed to replace a failed power module that supplied the 39 V rail for several internal cards. An IPM2-P0904HA was installed, the input voltage selector set to match the local 120 VAC feed, and the output verified under load. After confirming the status LEDs and measuring the 39 V rail, the affected cards returned to normal operation without requiring a full cabinet power cycle or reconfiguration of the newer 24 V supplies elsewhere in the system.

Typical niche applications:

• Replacement or spare for legacy I/A Series cabinets that still use the 39 VDC internal power rail
• Maintaining older system nodes where the original Industrial Power Module has failed
• Supporting specialty or migration hardware that requires the 39 V supply rather than standard 24 V baseplate power

Transparency SOP: QA & Testing

• Visual inspection of housing, connectors, input selector, and original P0904HA labeling
• Input voltage selection verification across available ranges
• Power-up and output voltage measurement under light and rated load
• Status LED functional check
• Isolation and basic protection verification
• Extended burn-in while monitoring output stability and temperature

IPM2-P0904HA

IPM2-P0904HA

The Veteran’s Tech Trap Guide

⚠️ Set the input voltage selector correctly. Applying the wrong AC voltage (for example, 240 V into a unit still set for 120 V) can damage the module or produce incorrect output. Always confirm the selector position before applying power.

PRO TIP: Measure the actual 39 V rail under load after installation. Some older systems are sensitive to voltage drop; a marginal supply or high-resistance connection can cause intermittent faults that appear to be card problems.

⚠️ Confirm compatibility with the target chassis. The IPM2-P0904HA is a legacy form factor. It will not directly replace a modern FPS400-24 or other 24 V baseplate supply. Verify that the system actually requires the 39 V output before ordering.

Dynamic FAQ

Q: What input voltages does the IPM2-P0904HA accept? A: It has a selectable input for 100, 120, 220, or 240 VAC.

Q: What is the output voltage and current? A: Regulated 39 VDC at approximately 1.7 A continuous.

Q: Is this the same as the modern FPS400-24 24 V supply? A: No. The IPM2-P0904HA is a legacy Industrial Power Module that provides 39 VDC. The FPS400-24 series supplies the standard 24 V DC used by 200 Series baseplates.

Q: Does the module have status indication? A: Yes. Front-panel status LEDs provide visual indication of module health.

Q: Are New Surplus units original Foxboro product? A: Yes. Units are original OEM material that have passed functional testing of input selection, output regulation, and status indication.

Q: What warranty is provided? A: 12-month warranty against defects in materials and workmanship from the date of shipment for both New Surplus and fully tested refurbished units.