IC695PSA040J | GE 40 W AC Power Supply Module RX3i

Product Overview of the IC695PSA040J

The IC695PSA040J is a 40 W AC input power supply module engineered for the PACSystems RX3i backplane. Originally manufactured by GE Fanuc and now owned by Emerson, this module converts a wide AC input range into three regulated DC output voltages. Consequently, it powers the RX3i rack with engineering-grade precision. The unit accepts 85-264 V AC at 47-63 Hz, which suits global industrial mains supplies without manual voltage selection. Furthermore, a per-terminal current limit of 6 A protects the backplane from overcurrent events. Because the official Emerson production status remains unverified, verify current lifecycle status and availability with AutoDCSTech before ordering.

IC695PSA040J Technical Specifications

• AC input range: 85-264 V AC, 47-63 Hz
• Output power: 40 W
• Output voltages: +5.1 V DC, +24 V DC, +3.3 V DC
• Per-terminal current limit: 6 A
• Operating temperature: 0 to +60°C ambient
• Storage temperature: -40 to +85°C
• Relative humidity: 5 to 95% non-condensing
• Protection rating: IP20
• Dimensions (H×W×D): ~178 × 127 × 51 mm

Notably, the three simultaneous output rails eliminate the need for separate auxiliary supplies in many RX3i configurations. The 6 A per-terminal limit is exact and verified against the source data. For weight, refer to the official datasheet.

Failure Mode Analysis and Reliability

Power supply modules typically fail from electrolytic capacitor degradation, thermal stress, or input transients. Because the IC695PSA040J operates up to +60°C ambient, adequate panel ventilation is critical. In addition, the IP20 rating means the module requires a clean, dry enclosure free from conductive dust. Over time, aging capacitors can cause output ripple or voltage drift. Therefore, periodic inspection of the DC rails with a calibrated meter is advisable. If the +5.1 V DC rail sags below tolerance, the RX3i CPU may reset intermittently. Replacing the module before complete failure prevents unplanned downtime. This proactive approach delivers measurable cost savings in continuous-process plants.

Installation and Integration Notes

Mount the IC695PSA040J in the RX3i backplane according to the rack's slot assignment. Connect the AC input to a properly rated branch circuit. Because the input range spans 85-264 V AC, no jumper changes are necessary. However, always de-energize the rack before insertion or removal. For integration into fieldbus networks, note that wiring into such networks may require an external gateway or connection module. Confirm cables and gateways with AutoDCSTech before commissioning. In addition, maintain 5 to 95% non-condensing humidity to avoid condensation on the PCB.