Description
Key Technical Specifications
- Product Type: Rack backplane (passive)
- Product Line: Modicon Quantum automation platform
- Slot Count: 10 free slots
- Supported Module Types: Local I/O, remote I/O, and distributed I/O modules
- Mounting Support: Mounting plate
- Fixing Mode: By screw
- Net Weight: 1 kg (2.2 lb)
- Contractual Warranty (OEM): 18 months
- Standards/Compliance: RoHS compliant
- Successor Part: 140XBP01000C is the current active replacement per Schneider’s product line
This is a passive backplane — no processor, no protocol, nothing to configure. Confirm your CPU and total module current draw against Quantum system sizing guidelines before finalizing your rack layout, since backplane slot count alone doesn’t guarantee power budget headroom.
Product Introduction
The Schneider Electric 140XBP01000 is a ten-slot rack backplane for the Modicon Quantum platform. It’s the passive chassis that carries power and bus signals between the CPU and whichever local, remote, or distributed I/O modules you populate the rack with — no logic, no firmware, nothing riding on the part itself beyond the physical connection.
It’s the go-to replacement when a rack is physically compromised — bent connector pins, a cracked backplane PCB, corrosion from a wet environment — rather than any individual module failing. Because it holds no configuration, swapping it is mechanical work: pull the modules, mount the new backplane, reseat everything in the same slots, done.

140XBP01000
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| One slot’s module won’t power up | Bad backplane connector pin at that slot | ✅ High | Visually inspect connector pins for bending/corrosion, try the module in a different slot | If the module works elsewhere, that backplane slot is suspect |
| Entire rack dead, no modules powering | Power supply module failure | ❌ Low | Check output voltage at the power supply module terminals | Troubleshoot the power supply before condemning the backplane |
| Intermittent faults across multiple modules | Loose module seating or backplane crack | ✅ High | Reseat all modules firmly, visually inspect backplane PCB for hairline cracks | Physical backplane damage usually means replacement |
| Single module faults, others fine | Module-level failure, not the rack | ❌ Low | Swap the suspect module into a known-good slot | Issue is likely the module, not this part |
| Rack won’t accept a specific module in outer slots | Slot addressing or backplane variant mismatch | ❌ Low | Check module’s slot restrictions against Quantum system planning docs | Verify compatibility before assuming backplane defect |
If reseating and cross-testing don’t isolate it, send us photos of the affected slot’s connector pins and note the exact slot number — that’s usually enough to confirm a backplane fault versus a module-level issue.
Frequently Asked Questions (FAQ)
Is this a powered module or just a rack?
Just the rack. The 140XBP01000 is a passive backplane — it has no processor, no firmware, and nothing to configure. It carries power and bus signals to whatever CPU, I/O, and communication modules you install across its ten slots.
Is this model still active, or has it been replaced?
It’s been superseded in Schneider’s current lineup by the 140XBP01000C. That doesn’t make the original non-functional — it’s still a fully working 10-slot Quantum backplane — but if you’re speccing a brand-new system, note that 01000C is the currently stocked part number.
Can I mix local, remote, and distributed I/O modules on one backplane?
Yes. This backplane supports all three module categories across its ten slots, so your rack architecture isn’t limited to one I/O type.
Do I need to reconfigure my PLC program after swapping backplanes?
No. There’s no configuration or firmware stored on the backplane itself. Reseat your existing modules in the same slot positions and your program, IP addresses, and module configs carry straight over.
Is this a direct fit for my existing 10-slot Quantum rack?
If your current backplane is a 140XBP01000 (or its successor 140XBP01000C), yes — direct swap. Don’t assume interchangeability with other XBP slot-count variants; physical dimensions and mounting differ.
Why is this priced lower than buying new through Schneider’s current channel?
Standard New Surplus economics — this stock comes from decommissioned systems, cancelled builds, or excess OEM inventory rather than Schneider’s active production/distribution channel. The part itself is the same design; you’re avoiding the new-channel premium, not getting a lesser unit.
What’s the warranty on this unit?
We back it with our standard warranty from ship date. For reference, Schneider’s own contractual warranty on this part is 18 months from date of manufacture.

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