OEX ACX1109 Convoluted Split Tubing ID: 16.3mm OD:20.9 Length 10m

OEX ACX1109 Split Convoluted Tubing 16.3mm Internal Diameter 10m Largest Size in the OEX Convoluted Tubing Range

The OEX ACX1109 is a split convoluted tubing sleeve in 16.3mm internal diameter, supplied in a 10m length. Constructed from corrugated polypropylene with a UL flammability rating of HB or V2, the split design allows cables to be inserted from the side without threading. At 16.3mm ID and 20.9mm OD with a maximum bundle size of 16.6mm, this is the largest internal diameter in the OEX split convoluted tubing range. Rated for continuous operation from -20°C to +90°C with a 120°C maximum peak temperature. Covered by a one year warranty.

Product overview

The ACX1109 is the largest size in the OEX split convoluted tubing range, stepping up from the 12.6mm (ACX1108 and ACX1108/150) to accommodate heavy main wiring harnesses, large multi-cable bundles and thick individual cables that exceed the capacity of the smaller sizes. The corrugated polypropylene construction provides flexibility for routing around bends while maintaining abrasion and chafing protection. The split design allows cables to be pressed in from the side along the lengthwise opening without threading from one end, making it practical for retrofitting protection to installed harnesses without disconnecting connectors.

The UL flammability rating of HB or V2 confirms a tested level of flame resistance suited to general automotive wiring protection. The operating range of -20°C to +90°C continuous with a 120°C maximum peak covers the wide temperature swings of Australian automotive environments. The 10m length suits single-vehicle and short-run installations where a full trade roll is not required for the main harness sections.

Features and benefits

Split design for retrofit installation: Cables snap in from the side without threading, allowing the tubing to be added to existing wiring runs without disconnecting connectors or rerouting cables.

16.3mm internal diameter largest in the OEX convoluted tubing range: Accommodates large cable bundles and heavy harnesses up to 16.6mm maximum bundle diameter, suited to main vehicle wiring harnesses and thick multi-cable runs.

Corrugated polypropylene construction: Flexible and resistant to abrasion and chafing, suited to routing through bends and tight spaces in automotive and marine wiring installations.

UL flammability rating HB or V2: Tested flame resistance confirming the material meets automotive wiring protection standards for general use applications.

-20°C to +90°C continuous operating range: Covers automotive, underbonnet and cold-climate applications across the wide temperature range typical of Australian conditions.

120°C maximum peak temperature: Provides a safety margin above the continuous rating for short-duration heat exposure.

10m length: Suited to single-vehicle and short-run installations where a full trade roll is not required.

One year warranty: Covered by a one year OEX warranty.

Technical specs

Frequently asked questions

What is split convoluted tubing? Split convoluted tubing is a flexible ribbed sleeving with a lengthwise split along one side. Cables can be pressed into the split opening rather than threaded through from the end, making it easy to add protection to existing wiring without disconnecting anything. The corrugated construction gives it flexibility and abrasion resistance.

What does the UL HB or V2 flammability rating mean? UL flammability ratings indicate how a material behaves when exposed to flame. HB is the base horizontal burn rating, indicating the material burns slowly or self-extinguishes. V2 indicates the material self-extinguishes within 30 seconds of a vertical flame test, though it may drip flaming particles. Both ratings confirm a level of flame resistance suitable for general automotive wiring protection.

How does the ACX1109 compare to the smaller sizes in the OEX convoluted tubing range? The ACX1109 at 16.3mm ID and 16.6mm maximum bundle is the largest size in the OEX range, suited to main vehicle wiring harnesses and heavy multi-cable runs. For smaller bundles, the 12.6mm range (ACX1108, ACX1108/150), 9.7mm range (ACX1104, ACX1105, ACX1105/250) or 7mm range provide progressively smaller options. Select based on the diameter of the cable bundle to be protected.

Is this tubing suitable for underbonnet use? Yes. The -20°C to +90°C continuous operating range and 120°C maximum peak temperature make it suitable for most automotive underbonnet environments. For areas with sustained extreme heat exposure, verify the ambient temperature against the tubing rating before use.

How do I cut split convoluted tubing to length? Split convoluted tubing can be cut with scissors, side cutters or a sharp blade. Cut between the ribs rather than through them for a cleaner end.