Buy now the IC695PSD040 — Atlantechdrives supplies this GE Fanuc PACSystems RX3i 40-Watt DC Power Supply, the standard single-slot power module for RX3i universal backplanes operating on 24 VDC nominal input. Whether you need a direct replacement or a spare for critical plant uptime, we ship worldwide with express delivery.
What Is the IC695PSD040?
The IC695PSD040 is a 40-Watt DC power supply module designed exclusively for the GE Fanuc PACSystems RX3i platform. It occupies one slot in the RX3i universal backplane and provides three regulated output rails: +5.1 VDC for backplane logic, +3.3 VDC for internal IC695-series module operation, and a +24 VDC relay output that can power external circuits on Output Relay modules. Originally developed under the GE Fanuc / GE Intelligent Platforms brand and now supported by Emerson Automation, the IC695PSD040 remains one of the most widely deployed power supply variants in the RX3i installed base across manufacturing, utilities, and process industries worldwide.
Key Technical Specifications
- Nominal Input Voltage: 24 VDC
- Input Voltage Range (Start): 18 to 30 VDC
- Input Voltage Range (Run): 12 to 30 VDC
- Maximum Input Power: 60 Watts at full load
- Output Power: 40 Watts maximum
- Output Voltages: +5.1 VDC (0–6 A), +3.3 VDC (0–9 A), +24 VDC relay
- Inrush Current: 4 A maximum for 100 ms
- Ripple and Noise: 50 mV peak-to-peak on all outputs
- Ride-Through Time: 10 ms minimum below minimum input voltage
- 5.1 VDC Electronic Current Limit: 7 A
- 3.3 VDC Electronic Current Limit: 10 A
- Operating Temperature: 0°C to 60°C (derating above 40°C)
- Backplane Compatibility: RX3i Universal Backplane only
- Slots Occupied: 1
- LED Indicators: Power (green/amber), P/S Fault (red), Over-Temperature (red), Overload (red)
- Form Factor: GFK-2376A reference document
Backplane Architecture and Compatibility
The IC695PSD040 is designed strictly for the RX3i universal backplane (IC695CHS-series). It is not compatible with Series 90-30 racks or RX3i serial expansion backplanes. Only one IC695PSD040 can be installed per universal backplane, and it cannot be combined with other RX3i power supplies for load sharing or redundancy — this distinguishes it from the multipurpose IC695PSD140. If the total power demand of modules installed in the rack exceeds 40 Watts, excess modules must be moved to expansion or remote backplanes. Important: Power Supply revision IC695PSD040C or earlier must never be installed in the same backplane as another RX3i power supply, as this may cause equipment damage. Daisy-chaining up to two IC695PSD040 units is electrically possible but does not increase output capacity. The module is compatible with all RX3i CPUs, including IC695CPE305, IC695CPE310, IC695CPE330, IC695CPK330, and IC695CRU320 redundancy processors.
Maintenance Tips
When replacing an IC695PSD040 in the field, always power down the entire RX3i rack before removing the module — this supply does not support hot-swap. Check the revision letter stamped on the module label before installation: revisions C and earlier must never coexist in a backplane with any other RX3i power supply. After installation, observe the Power LED during initial power-up: green indicates normal backplane output; amber indicates that power is applied to the supply but the output switch is off. A red P/S Fault LED indicates the supply has failed and is no longer delivering sufficient voltage — do not attempt to continue operating the controller in this state. Monitor the Overload LED periodically in high-density I/O installations; sustained overload conditions trigger an automatic internal shutdown with continuous restart attempts until the condition is resolved. An internal fuseable link protects against catastrophic input faults and will blow only if the overload protection circuit itself fails first — a blown fuse indicates an internal supply fault requiring full module replacement.
Frequently Asked Questions
Q: Can I use the IC695PSD040 in a redundant power supply configuration?
A: No. The IC695PSD040 is a standard, non-multipurpose supply and cannot be used in load-sharing or redundancy modes. For redundancy or increased capacity applications, the IC695PSD140 or IC695PSA140 multipurpose power supplies are required.
Q: What happens if my load exceeds 40 Watts on the IC695PSD040?
A: The supply will detect the overload internally and shut down, then continuously attempt to restart until the condition is cleared. If the power demand consistently exceeds 40 Watts, additional I/O modules must be distributed across expansion or remote backplanes powered by separate supplies.
Q: Is the IC695PSD040 compatible with Series 90-30 backplanes?
A: No. It is designed exclusively for the RX3i universal backplane (IC695 catalog number backplanes). Series 90-30 main racks are not compatible with RX3i power supplies.
Do you need more references from this brand? Explore our full catalog of GE Fanuc here: https://atlantechdrives.com/manufacturers/ge-fanuc/
