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Klockner Bartelt 500081-6 Cable vs Honeywell NOVAR XIO-8CTI-B I/O Module: Which Control Part Do You Need?

Choosing between the Klockner Bartelt 500081-6 cable assembly and the Honeywell NOVAR XIO-8CTI-B remote I/O module comes down to whether you need a wiring replacement or a new current transformer input module. This head-to-head compares condition and intended role to help you decide.

Last updated Aug 17, 2026

When signal loss or control hiccups slow down a line, the first question is whether the problem is in the wiring or in the input module. For anyone working with control cables, connectors, and I/O components, two very different parts often show up on the same list: the Klockner Bartelt 500081-6 Industrial Control Cable Assembly and the Honeywell NOVAR Opus XIO-8CTI-B Remote I/O Module with CT. One is a cable assembly meant to carry control signals; the other is a remote I/O module built to read current transformer inputs. Choosing between them starts with identifying the failed part, then weighing a lower-priced used cable against a new, more specialized module.

Quick verdict

If you need to replace a control cable assembly and a used part is acceptable, the Klockner Bartelt 500081-6 at $159.99 is the straightforward pick. If your system requires a new remote I/O module for current transformer input, the Honeywell NOVAR Opus XIO-8CTI-B at $284.88 is the better fit because it is new and clearly specified as a current transformer input module.

At a glance

ProductListed priceConditionWhat you get
Klockner Bartelt 500081-6 Industrial Control Cable Assembly$159.99UsedIndustrial control cable assembly for pneumatic, hydraulic, electronic, and electrical control equipment
Honeywell NOVAR Opus XIO-8CTI-B Remote I/O Module with CT$284.88NewCurrent Transformer Input Module rated 22-28VAC 50/60Hz, model XIO.80CT

Where each product wins

  • Choose the Klockner Bartelt 500081-6 when your need is a control cable assembly and you want to spend less on the wiring element.
  • Choose the Honeywell NOVAR Opus XIO-8CTI-B when the job calls for a new current transformer input module and you want a part that is both new and specifically identified.
  • The cable assembly is used; the module is new in original packaging, so the module carries less uncertainty about previous service.

Product notes

Klockner Bartelt 500081-6 Industrial Control Cable Assembly

Klockner Bartelt 500081 6 Industrial Control Cable Assembly

The Klockner Bartelt 500081-6 is the wiring-focused part when the missing piece is the cable itself. Its role as an industrial control cable assembly covers pneumatic, hydraulic, electronic, and electrical control equipment, which gives it a broad fit for control circuits. The main compromise is condition: it is a used part, so it comes with service history rather than the freshness of new packaging. That means it makes sense when you need a cable assembly for a control loop and can accept prior service life. If the project requires a current transformer input module instead, this cable assembly does not fill that role.

Honeywell NOVAR Opus XIO-8CTI-B Remote I/O Module with CT

Honeywell NOVAR Opus XIO-8CTI-B Remote I/O Module with CT 22-28VAC 50/60Hz NEW

The Honeywell NOVAR Opus XIO-8CTI-B is the more specific pick for a current transformer input job. It is new and in original packaging, and the type label says Input Module Current Transformer with a 22-28VAC 50/60Hz rating and model XIO.80CT. That gives you a clear part identification for a remote I/O module rather than a generic wiring piece. The limitation is its narrower purpose: it is not a control cable assembly, so it cannot repair a damaged cable in the loop. For installations where a new remote I/O module is the required component, this is the option that fits.

Final choice by use case

Choose the Klockner Bartelt 500081-6 when your control loop needs a replacement cable assembly and you are comfortable working with a used industrial part. Choose the Honeywell NOVAR Opus XIO-8CTI-B when the project calls for a new remote I/O module with current transformer input capability and you want a part that is new and clearly specified for that role. The first is about restoring wiring; the second is about installing a clearly specified input module.

Products in this article
Klockner Bartelt 500081 6 Industrial Control Cable AssemblyUSD 159.99View on eBayHoneywell NOVAR Opus XIO-8CTI-B Remote I/O ModuleUSD 284.88View on eBay
Klockner Bartelt 500081 6 Industrial Control Cable AssemblyUSD 159.99View on eBayHoneywell NOVAR Opus XIO-8CTI-B Remote I/O ModuleUSD 284.88View on eBay

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