Product Overview
Engineers maintaining Modicon Quantum systems know the frustration of a stalled line waiting on a small but essential component. The 140XTS00200 from Schneider Electric is a 40-pin screw terminal block built for the Modicon Quantum platform. It connects field wiring to all 140 series I/O modules, giving technicians a secure, serviceable interface at every I/O point.
This is a practical, field-proven accessory rather than a complex intelligent device. Its job is simple: hold conductors firmly, label clearly, and allow quick module swaps without disturbing the cabinet wiring. For plants running legacy Quantum racks, that simplicity is exactly the point.
Please note: this item is discontinued (End of Sale, last verified 2026-09). Verify current lifecycle status and availability with Oil AutoTech before ordering.
Technical Specifications
| Specification | Value |
|---|---|
| Model | 140XTS00200 |
| Brand | Schneider Electric |
| Series | Modicon Quantum |
| Type | Screw terminal block |
| Pins | 40-pin |
| Compatible With | All 140 series I/O modules |
| Weight | 0.15 kg |
| Protection Rating | IP20 |
| Lifecycle | Discontinued (End of Sale) |
The 40-pin count matches the standard field wiring density of Quantum I/O modules, so one block serves a full module without adapters. Screw clamping suits harsh plant environments where vibration and temperature cycling can loosen push-in terminations. At 0.15 kg, the block adds negligible load to the mounting rail. IP20 means it belongs inside a protected enclosure — standard practice in control cabinets.
Why This Part Still Matters in Legacy Systems
Quantum installations remain widespread across oil, gas, and heavy process industries. When an I/O module fails, the terminal block often stays behind — and sometimes it is the block itself that suffers stripped screws or cracked housings after years of service.
Sourcing a genuine replacement protects the investment already made in the rack, wiring, and application program. Rewiring an entire module to a different termination style costs engineering hours and risks wiring errors. A direct-fit block keeps the change minimal and the commissioning time short.
Compatibility and Integration
The 140XTS00200 works with all 140 series I/O modules, which keeps spares planning straightforward. One part number covers digital, analog, and specialty modules across the Quantum family. That reduces the number of line items a maintenance storeroom must carry.
When integrating into existing Quantum racks, confirm the module model and slot arrangement before ordering. If your architecture extends into fieldbus networks, remember that wiring into such networks may require an external gateway or connection module. Confirm cables and gateways with the supplier.
Installation Guidance
Mount the terminal block according to the module’s mechanical keying. Route field conductors through the cabinet’s cable management, leaving a service loop for future module removal. Tighten screw terminals to the torque specified in the Quantum installation documentation — over-tightening damages strands, under-tightening creates heat.
Label each conductor before termination. In legacy cabinets, faded or missing labels are the leading cause of miswiring during emergency repairs. A few minutes of labeling prevents hours of troubleshooting later.
Maintenance and Reliability
During scheduled shutdowns, inspect terminal blocks for discoloration, loose screws, and corrosion. Thermal cycling and vibration are the main wear drivers in oil and gas environments. Re-torque screws as part of the routine I/O inspection, and replace any block showing cracked insulation or damaged threads.
Because the part is discontinued, treat existing stock as critical spares. Holding one or two blocks on the shelf is inexpensive insurance against extended downtime. Fast dispatch, worldwide, matters most when a line is already stopped.
Selection Checklist
Before purchasing, verify the module series, pin count, and termination type against your existing hardware. Confirm that the cabinet environment stays within IP20 expectations — that is, a clean, protected enclosure. If you need help matching the block to a specific Quantum module, contact Oil AutoTech today for pricing and availability. Our team provides hands-on technical selection help for oil, gas, and industrial automation applications.
Frequently Asked Questions
Is the 140XTS00200 still in production?
No. Schneider Electric lists it as discontinued (End of Sale). Availability depends on remaining stock, so verify with Oil AutoTech before planning a repair.
Which modules does this terminal block fit?
It is compatible with all 140 series I/O modules in the Modicon Quantum platform, covering a 40-pin interface.
Can I use it outdoors or in a washdown area?
No. The IP20 rating requires a protected enclosure. Outdoor or wet locations need additional cabinet protection.
What should I check before ordering a replacement?
Confirm the module model, pin count, and existing termination style. Also inspect the old block for damage that might indicate a wiring fault.
Do you provide help identifying the correct spare?
Yes. Send your module details to Oil AutoTech, and our team will help match the right terminal block for your Quantum rack.
