Product Overview
Downtime on a critical process line rarely announces itself. When a Modicon Quantum controller fails, every minute of lost production compounds. The Schneider Electric 140CHS41010 hot standby kit exists to remove that risk. It bundles the core hardware needed to run two Quantum CPUs in a redundant pair, so a primary unit failure triggers a seamless switchover instead of a shutdown.
This is not a single module. The 140CHS41010 is a complete kit: two 140CPU11302 Quantum CPUs, two 140CHS11000 hot standby processors, two 140CRP93101 remote I/O processors, two 140XBP00600 backplanes, two 140CPS11100 power supplies, one S908 terminator kit, one 3 m fiber optic hot standby cable, and an installation manual. Everything arrives matched and ready to assemble.
Technical Specifications
| Component | Quantity |
|---|---|
| 140CPU11302 Quantum CPUs | 2 |
| 140CHS11000 Hot Standby Processors | 2 |
| 140CRP93101 Remote I/O Processors | 2 |
| 140XBP00600 Backplanes | 2 |
| 140CPS11100 Power Supplies | 2 |
| S908 Terminator Kit | 1 |
| Fiber Optic Hot Standby Cable (3 m) | 1 |
| Installation Manual | 1 |
Environmental Limits
Operating temperature spans 0 to 40 degrees Celsius. Storage temperature spans 0 to 50 degrees Celsius. Both operating and storage humidity max out at 80% RH, non-condensing. These figures suit most climate-controlled control rooms and many sheltered industrial enclosures.
How the Kit Compares
Buyers often weigh three paths: replace a single failed CPU, build redundancy from separate parts, or install a complete hot standby kit.
- Single CPU replacement — lowest upfront cost, but no protection against the next failure.
- Piece-by-piece redundancy build — flexible, yet risks mismatched revisions and long sourcing cycles.
- 140CHS41010 complete kit — matched components, one part number, one dispatch. Best fit when uptime matters more than unit price.
For oil, gas and heavy process plants, the third option usually wins on total cost of ownership. A single unplanned outage can outweigh the kit’s price many times over.
Where This Kit Fits
Redundancy pays off in three common scenarios.
Pipeline and terminal control. Remote I/O processors keep field signals flowing while the standby CPU holds ready. A primary fault switches control without dropping the process.
Refinery and petrochemical units. Continuous processes cannot tolerate a controller restart. The fiber optic hot standby cable links the two processors, keeping synchronization tight.
Water treatment and power generation. These facilities run unattended for long stretches. Dual power supplies and dual CPUs reduce the chance of a full stop between maintenance visits.
Integration Notes
The kit uses the Modicon Quantum platform, including the S908 remote I/O network. Wiring into an existing Quantum rack or remote I/O drop may require specific terminators, cables or connection modules beyond what ships in the box. Confirm your exact network layout with Oil AutoTech before ordering so the right accessories arrive together.
Selection Checklist
Before you commit, verify:
- Your existing Quantum rack uses compatible backplane and power supply slots.
- Your remote I/O network matches the S908 terminator configuration.
- Cabinet temperature stays within 0 to 40 degrees Celsius under load.
- Humidity stays below 80% RH, non-condensing.
- You have the correct fiber optic cable length for your panel layout.
Oil AutoTech provides hands-on technical selection help for these checks. Spares when you need them — fast dispatch, worldwide.
Maintenance and Reliability
Inspect the fiber optic cable and terminator connections periodically for contamination or looseness. Keep cabinet filters clean to hold humidity and temperature inside the rated range. Follow Schneider Electric’s safety manual for all service work. Please verify current lifecycle status and availability with Oil AutoTech before ordering.
Contact Oil AutoTech today for pricing and availability.
