ABB NKTU01-10 I/O Module to Termination Unit Cable | Replacement, Equivalent & Selection Guide
The ABB NKTU01-10 is a dedicated I/O Module to Termination Unit (TU) interconnect cable designed for ABB’s AC 800M / S800 I/O system. It provides a reliable, low-noise signal path between I/O modules and their corresponding termination units, ensuring system integrity in demanding industrial automation environments. This page covers full technical specifications, compatible replacement options, application guidance, and ordering information.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | NKTU01-10 |
| Manufacturer | ABB |
| Description | I/O Module to Termination Unit Cable |
| Cable Length | 1.0 m (nominal) |
| Connector Type | Proprietary ABB S800 I/O interface connectors (both ends) |
| Compatible I/O Series | ABB S800 I/O, AC 800M controller system |
| Weight | ~800 g |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -25 °C to +70 °C |
| Shielding | Shielded for EMI/RFI protection |
| Compliance | CE, RoHS |
Compatible Replacement & Equivalent Models
When the NKTU01-10 is unavailable or requires substitution, the following ABB cables and third-party equivalents may be considered. Always verify connector pinout and cable length before substitution.
| Model | Manufacturer | Length | Notes |
|---|---|---|---|
| NKTU01-10 | ABB | 1.0 m | Original — direct fit |
| NKTU01-05 | ABB | 0.5 m | Shorter variant; same connector standard |
| NKTU01-20 | ABB | 2.0 m | Longer variant; same connector standard |
| NKTU01-30 | ABB | 3.0 m | Extended reach; verify signal integrity |
| Custom OEM Cable | Third-party | Custom | Must match ABB S800 connector spec; confirm with Konmask before ordering |
Note: ABB part numbers in the NKTU01-xx series share the same connector interface but differ in cable length. Confirm physical routing requirements before selecting an alternative length.
Why Choose the Original Model
- Guaranteed compatibility — factory-tested with ABB S800 I/O modules and TU termination units
- Signal integrity — shielded construction minimizes noise in high-density I/O cabinets
- Plug-and-play installation — no field wiring or crimping required; reduces commissioning time
- Warranty compliance — use of original ABB cables preserves system warranty and support eligibility
- Long-term availability — ABB S800 I/O is an active platform with ongoing spare parts support
Typical Applications
- Process automation: oil & gas, chemical, and power generation plants using ABB AC 800M DCS
- Factory automation: discrete manufacturing lines with S800 I/O distributed I/O nodes
- Panel building: marshalling cabinets requiring flexible I/O-to-TU routing
- System expansion: adding I/O modules to existing ABB S800 racks with extended cable runs
- Maintenance replacement: like-for-like swap of damaged or aged interconnect cables
System Compatibility
| ABB Platform | Compatible | Notes |
|---|---|---|
| AC 800M Controller (PM851, PM856, PM860, PM861, PM864, PM866) | ✅ Yes | Primary target platform |
| S800 I/O Modules (AI810, AO810, DI810, DO810, etc.) | ✅ Yes | All standard S800 I/O module types |
| S800 Termination Units (TB820, TB840, TB845, etc.) | ✅ Yes | Connects module to TU |
| AC 800PEC / AC 800xA | ⚠️ Verify | Confirm I/O bus architecture before use |
| Freelance / AC 900F | ❌ No | Different I/O connector standard |
Selection Guide
Use the following criteria to select the correct NKTU01-xx cable for your application:
- Step 1 — Measure routing distance: Measure the physical cable path from the I/O module slot to the termination unit. Add 15–20% slack allowance.
- Step 2 — Select cable length: Choose NKTU01-05 (0.5 m), NKTU01-10 (1.0 m), NKTU01-20 (2.0 m), or NKTU01-30 (3.0 m) based on Step 1.
- Step 3 — Confirm I/O module type: Verify the target I/O module is an S800-series unit (AI, AO, DI, DO, or specialty module).
- Step 4 — Confirm termination unit type: Verify the TU is an ABB S800-compatible termination unit (TB820, TB840, TB845, or equivalent).
- Step 5 — Check cabinet layout: For high-density cabinets, prefer shorter cables (NKTU01-05 or NKTU01-10) to minimize cable management complexity.
- Step 6 — Contact Konmask if uncertain: Our technical team can verify compatibility based on your system BOM or project drawings.
Quality Assurance & Sourcing
- Genuine ABB parts — Konmask sources NKTU01-10 cables from authorized ABB distributors and verified surplus channels
- Inspection before shipment — each cable is visually inspected for connector integrity, shielding continuity, and labeling accuracy
- Traceability — batch records and supplier documentation available upon request for critical projects
- Anti-counterfeit policy — Konmask does not knowingly stock or sell counterfeit or relabeled parts; contact us if you have concerns about part authenticity
- Warranty — 12-month warranty against manufacturing defects on all genuine ABB parts sold through Konmask.com
How to Order
- Add the NKTU01-10 to your cart directly from this page
- For bulk orders (5+ units), contact support@konmask.com for volume pricing
- For urgent requirements, call +0086 19859288691 to confirm stock availability and lead time
- Provide your project BOM or system model number for technical pre-sales verification if needed
- International orders: Konmask ships globally — contact us for freight options and export documentation
Replacement & Compatibility FAQ
Q: Can I use a longer NKTU01-20 or NKTU01-30 instead of the NKTU01-10?
A: Yes, provided the physical routing allows it. Longer cables introduce negligible signal degradation in S800 I/O systems, but excess cable should be neatly bundled to avoid EMI coupling.
Q: Is the NKTU01-10 compatible with older ABB Advant / Master systems?
A: No. The NKTU01-10 is specific to the S800 I/O platform. Advant and Master systems use different I/O bus architectures and connector standards.
Q: Can a custom-length cable be used as a replacement?
A: Custom cables are possible but must exactly replicate the ABB S800 connector pinout and shielding specification. Konmask can advise on qualified third-party cable suppliers if required.
Q: What is the lead time for NKTU01-10?
A: In-stock units ship within 1–3 business days. Out-of-stock items typically have a 2–6 week lead time depending on ABB supply chain status. Contact us for current availability.
Q: Does Konmask provide installation support?
A: Konmask provides pre-sales technical guidance and documentation. On-site installation support is not included but can be arranged through our partner network.
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Contact: support@konmask.com | +0086 19859288691
