140XBP00400 – Modicon Quantum 4-Slot Rack Backplane
This 4-slot backplane forms the physical backbone for Modicon Quantum automation systems. It supports local, remote, and distributed I/O modules in a single compact chassis. The unit mounts directly onto a mounting plate using standard screws. It provides reliable power and communication distribution across all inserted modules. This backplane is essential for building scalable and maintainable Quantum control architectures.
Technical Specifications
- Brand: Schneider Electric / Modicon
- Model: 140XBP00400
- Series: Modicon Quantum
- Product Type: Racks backplanes
- Application: For local, remote, and distributed I/O modules
- Free Slots: 4
- Mounting: Mounting plate with screw fixing
- Product Weight: 0.45 kg (0.99 lb)
- Package Dimensions: 4.5 x 29.2 x 29.2 cm (1.77 x 11.5 x 11.5 in)
- Package Weight: 891 g (31.43 oz)
Installation & Physical Features
- Standard Quantum form factor ensures drop-in compatibility.
- Four free slots accommodate a mix of I/O and communication modules.
- Robust screw fixing for secure mounting on industrial panels.
- Passive backplane design – no active components, high reliability.
Compatible Devices & Systems
- Modicon Quantum CPUs (all series).
- Quantum digital, analog, and specialty I/O modules.
- Communication modules (Ethernet, Modbus, Profibus).
- Power supply modules for Quantum racks.
- Use in new builds or as replacement for existing 4-slot racks.
Oiltech Controls’s Insight
- This 4-slot backplane is a common point of failure in aging Quantum systems – we stock verified units for immediate replacement.
- Always verify slot count and mounting hole pattern before ordering; 4-slot is the most popular for compact control cabinets.
- We recommend pairing this backplane with a fresh power supply to ensure stable 5 VDC distribution across all slots.
- For systems with more than 4 I/O modules, consider the 10-slot or 16-slot versions to avoid expansion headaches.
Frequently Asked Questions – Expert Selection Guide
- How do I know if this backplane fits my existing Quantum rack? Measure the mounting plate hole spacing. This unit matches standard Quantum 4-slot footprint. Check your current backplane model – if it ends with “00400”, this is a direct replacement.
- Can I mix local and remote I/O on the same backplane? Yes, the backplane itself is passive. Your CPU and communication modules determine the I/O type. You can freely combine local, remote, and distributed I/O modules as long as the CPU supports them.
- What is the maximum current this backplane can handle? The backplane distributes power from the rack power supply. Total current depends on the PSU used. For typical Quantum systems, stay under 8A at 5 VDC to avoid voltage drop across the backplane.
- Is this backplane compatible with hot-swapping modules? Quantum backplanes support module insertion and removal under power, but always follow Schneider’s guidelines – insert modules straight and avoid excessive force to prevent pin damage.
- Should I choose 4-slot or 10-slot for a new project? For small to medium applications (up to 30-40 I/O points), 4-slot is cost-effective and compact. For larger systems or future expansion, choose 10-slot (140XBP01000) to avoid replacing the backplane later.
Why Buy From Oiltech Controls?
- We bring over 15 years of focused industrial automation spare parts expertise.
- Global delivery – we ship via FedEx, UPS, and DHL within 24–28 hours.
- Every backplane is electrically and mechanically verified before packaging.
- We offer both tested surplus units and quality refurbished alternatives.
- All products include a 12-month warranty against defects.
- We actively support obsolete control systems with reliable replacements.
Shipping: We process orders within 24–28 hours and ship worldwide via FedEx, UPS, or DHL. Express options available upon request.
Contact: For inquiries, email info@oiltechcontrols.com or reach us via +86 158 8020 0923 (WhatsApp).
Modicon Quantum Series – explore our full collection of backplanes, CPUs, and I/O modules.
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