Description
Replacing or stocking the GE Fanuc / Emerson PACSystems RX7i IC698PSA350 350W power supply? Read critical input/output specs, thermal considerations, and stocking levels.
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When an industrial PLC system goes dark, the issue is rarely a corrupted program; more often, it is a hardware failure in the power supply section due to decades of thermal stress. The Emerson / GE Fanuc PACSystems RX7i IC698PSA350 is a robust, high-capacity 350 Watt AC/DC power supply module. This module is designed to fit directly into the dedicated power supply slot of an RX7i VME64-based chassis. It accepts a wide range of input voltages and converts them into regulated DC voltages (+5 VDC, +12 VDC, and −12 VDC) to power high-density CPU, coprocessor, and I/O modules across the backplane.
Technical Specification Snapshot
Before mounting a replacement power supply into a live production rack, verify these mechanical and electrical operating thresholds:
| Parameter | Specification Value |
| Model Code | IC698PSA350 (Includes variations like IC698PSA350-ED) |
| Product Family | PACSystems RX7i (Formerly GE Fanuc / Intelligent Platforms, now Emerson) |
| Nominal Input Voltage | 85 to 264 V AC (47 to 63 Hz) or 125 V DC (nominal operating range: 100 to 300 V DC) |
| Max Output Power | 350 Watts maximum total for all outputs combined |
| Outputs Provided | • +5 VDC: 0 to 60 Amps
• +12 VDC: 0 to 12 Amps • −12 VDC: 0 to 1 Amp |
| Input Inrush Current | 40 Amps maximum peak (at 264 V AC input) |
| Chassis Slot Requirement | Occupies the dedicated left-hand power supply slot of the RX7i rack |
| Diagnostics / Status Indicators | On-board LEDs: Power, Input OK, Output OK, Over-temperature, Over-voltage |
| Environmental Limits | 0 to 60 °C (32 to 140 °F) operating range |
Sparing & Operational Strategy
Applying standard industrial supply chain principles categorizes the IC698PSA350 as a Class A critical spare. If this power supply experiences an internal fault, the entire rack immediately de-energizes, shutting down the running CPU, communication links, and connected field networks. Because the RX7i family has entered the mature phase of its product life cycle, sourcing brand-new OEM replacements can introduce long lead times.
For facilities operating critical processes with these racks, keeping a minimum of one tested spare module on-site is an essential risk-mitigation step to avoid extended plant outages.
Not Recommended For:
Do not utilize the IC698PSA350 in standard, low-power Series 90-30 or RX3i controller racks. Its VME64-compatible physical size and dedicated power connectors are keyed strictly for the larger RX7i chassis.
