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- sales@andcorp.com.au
RapidConnect Fusion Splice Protectors mechanically reinforce completed fibre optic fusion splices. Each sleeve combines a polyolefin heat-shrink outer tube, hot-melt adhesive inner tube and stainless-steel strength member. Available in 30 mm, 45 mm and 60 mm lengths, with 12 protectors per pack.
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RapidConnect® Fusion Splice Protectors provide mechanical reinforcement for completed fibre optic fusion splices. Once heated, each protector supports the stripped fibre, shields the delicate splice point and helps prevent bending or handling damage inside a splice tray. Consequently, installers can organise and secure completed splices with greater confidence.
Every fusion splice protector combines three essential components: a heat-shrink outer sleeve, an adhesive inner tube and a stainless-steel strength member. Together, these components form a rigid protective assembly around the completed splice. However, the sleeve does not replace a correctly selected fibre optic enclosure or splice tray. Instead, it protects the individual splice inside that managed environment.
RapidConnect Fusion Splice Protectors are available in 30 mm, 45 mm and 60 mm lengths. Therefore, installers can select a sleeve that suits the fusion splicer, heater oven, splice tray and protector holder used for the project.
Fusion Splice Protectors are heat-shrink sleeves designed to reinforce completed fibre optic fusion splices. Although a correctly formed fusion splice creates a permanent optical connection, the splicing process removes the original fibre coating from a short section of each fibre. As a result, the bare glass around the completed joint requires additional mechanical support.
The protector surrounds this vulnerable area. First, the installer slides the protector over one fibre before completing the splice. Next, the installer fuses the two prepared fibre ends. The completed splice is then centred inside the sleeve. Finally, the sleeve passes through the fusion splicer’s heater oven.
As the protector heats, the outer tube shrinks around the splice. At the same time, the inner adhesive softens and conforms around the fibre. Meanwhile, the stainless-steel strength member provides longitudinal rigidity. Therefore, the completed assembly helps prevent excessive bending at the exposed splice point.
The protector also allows the splice to sit securely within the designated holder in a fibre optic splice tray. Consequently, the splice remains organised and separated from other fibres inside the enclosure.
Optical fibre consists primarily of extremely fine glass. Although its coating makes the fibre practical to handle, the fusion-splicing process requires the installer to remove that coating from each fibre end.
After stripping, cleaning and cleaving, the fusion splicer aligns the two bare fibre ends and joins them with a controlled electric arc. This process produces a continuous glass connection. However, the completed splice area no longer has the original protective coating that surrounded the fibre before preparation.
Therefore, an unprotected fusion splice remains vulnerable to several risks:
A Fusion Splice Protector provides a controlled method of reinforcing this exposed section. In particular, the steel strength member reduces bending along the protected area. Meanwhile, the heat-shrink and adhesive components hold the fibre in position.
However, the protector cannot correct a defective fusion splice. If the splicer reports excessive loss, poor alignment, bubbles, deformation or another fault, the installer should remake the splice. The sleeve protects a satisfactory splice; it does not improve the optical quality of a poor one.
RapidConnect Fusion Splice Protectors use a three-part construction. Each component performs a different role during the heating and protection process.
The transparent outer sleeve uses heat-shrinkable polyolefin. When the installer places the protector in the fusion splicer’s heater oven, the sleeve reduces in diameter and closes around the internal components.
Because the outer sleeve is transparent, the installer can observe the position of the splice and fibre during preparation. This visibility helps the installer centre the fusion splice before heating. Furthermore, the transparent construction assists with inspecting the sleeve after the heating cycle.
The outer sleeve also keeps the adhesive tube, fibre and stainless-steel strength member together as one assembly. Therefore, each component remains correctly positioned around the splice.
Nevertheless, installers should not judge a completed splice solely by looking through the sleeve. The fusion splicer’s splice result, physical inspection before heating and relevant optical testing remain important parts of quality assurance.
The inner tube contains a heat-activated adhesive material. During heating, this material softens and conforms around the prepared fibre and splice area. Consequently, it helps hold the fibre securely within the protector.
The adhesive also fills the space around the fibre inside the sleeve. Therefore, the fibre receives support across the protected section rather than resting loosely inside an empty tube.
Correct heating remains essential. If the sleeve receives insufficient heat, it may not shrink evenly and the adhesive may not flow as intended. Conversely, excessive or uncontrolled heating may damage the protector or place unnecessary thermal stress on the fibre.
For that reason, installers should use the fusion splicer’s designated heater oven and select a heater program appropriate for the sleeve. They should also follow the fusion splicer manufacturer’s operating instructions.
A stainless-steel strength member runs along the sleeve. Its principal purpose is to provide longitudinal rigidity across the completed splice.
Once the protector has cooled, the strength member helps stop the protected section from bending sharply. Consequently, the delicate fusion point receives mechanical reinforcement while the installer transfers it into the splice tray.
The strength member does not place tensile strength into the optical fibre itself. Likewise, it does not make the splice suitable for uncontrolled pulling, twisting or crushing. Instead, it supports the fibre within the protected area under normal installation and fibre-management conditions.
A Fusion Splice Protector changes from a loose sleeve into a compact protective assembly during the heater cycle.
Before splicing, the sleeve has enough internal space to slide along the coated fibre. After the fusion splice has been completed, the installer carefully moves the protector until the fusion point sits near the centre of the sleeve.
The installer then places the assembly into the heater oven. During the heating cycle:
After heating, the protector requires time to cool. As it cools, the adhesive firms and the assembly becomes rigid. The installer can then place it into the corresponding holder in the splice tray.
Although the process appears simple, accurate positioning matters. If the splice sits too close to one end, part of the stripped fibre may remain inadequately supported. Therefore, the installer should centre the prepared area before starting the heater cycle.
RapidConnect Fusion Splice Protectors are available in three lengths:
The different lengths support a range of fusion-splicing equipment, trays and enclosure designs. However, sleeve length should not be selected only according to personal preference. Instead, installers should confirm compatibility with the complete splicing system.
The 30 mm protector provides a compact option for installations with smaller splice holders or limited tray space. Therefore, it may suit high-density trays and compact fibre-management systems that specifically accommodate 30 mm sleeves.
Its shorter length can help conserve space. Nevertheless, the protector must still cover the prepared fibre and splice area correctly. In addition, the fusion splicer heater oven must support the shorter sleeve.
The RapidConnect H30 protector includes a 25 mm stainless-steel strength member.
The 45 mm protector offers an intermediate format between the compact 30 mm sleeve and the traditional 60 mm sleeve. Consequently, it may suit trays and enclosures designed around a medium-length splice protector.
The RapidConnect H45 protector includes a 36 mm stainless-steel strength member.
Before selecting this size, installers should check the dimensions of the splice holder. A 45 mm sleeve should sit securely without being compressed, forced or allowed to move freely.
The 60 mm protector uses the longest format in the RapidConnect range. This sleeve length is widely associated with conventional fibre optic splice trays and heater ovens. However, compatibility should still be confirmed for each application.
The RapidConnect H60 protector includes a 55 mm stainless-steel strength member.
The longer sleeve provides an extended reinforced section around the splice. Nevertheless, additional length does not automatically make it the correct choice. If the tray requires a shorter protector, a 60 mm sleeve may not fit properly or may interfere with fibre routing.
| Specification | H30 | H45 | H60 |
|---|---|---|---|
| Product | 30 mm Fusion Splice Protector | 45 mm Fusion Splice Protector | 60 mm Fusion Splice Protector |
| Sleeve length | 30 mm | 45 mm | 60 mm |
| Strength-member length | 25 mm | 36 mm | 55 mm |
| Inner diameter | 1.2 mm | 1.2 mm | 1.2 mm |
| Reduced size | 2.6 mm | 2.6 mm | 2.6 mm |
| Specified heating temperature | Greater than 125°C | Greater than 125°C | Greater than 125°C |
| Pack quantity | 12 | 12 | 12 |
| Ordering code | H30 | H45 | H60 |
The dimensions above help identify the available products. However, sleeve length alone does not establish compatibility. Therefore, customers should also check their heater oven, splice-tray holder and enclosure documentation.
Furthermore, the specified heating temperature should not be treated as a universal instruction to manually override a fusion splicer. Heater temperature, heating duration and sleeve program can differ between machines. Consequently, installers should use a compatible program recommended for the fusion splicer and sleeve format.
The correct Fusion Splice Protector should work with every relevant part of the splicing system. Therefore, selection should consider more than the protector itself.
First, confirm that the fusion splicer’s heater oven accepts the selected sleeve length. Some heater ovens support several lengths, while others work best with a particular protector format.
The oven’s clamps, supports and heating area should hold the fibre without forcing the splice away from the centre. Moreover, the protector should sit within the intended heated area.
If the sleeve is too long for the heater, it may not shrink uniformly. Conversely, a very short sleeve may not sit correctly in an oven designed around longer protectors.
Next, inspect the sleeve holders within the splice tray. These holders often use slots, clips or flexible retaining points designed for a particular protector length and finished diameter.
The completed sleeve should fit securely. However, the holder should not crush, kink or deform it. If the sleeve remains loose, it may move during installation or later maintenance. If the holder is too tight, the installer may apply excessive force to the protected fibre.
Therefore, always match the protector to the tray manufacturer’s requirements.
The enclosure must provide enough space for both the protector and the required fibre bend radius. This consideration becomes especially important in compact wall boxes, high-density trays and small fibre termination enclosures.
A longer sleeve can occupy more of the available routing space. As a result, it may affect how the fibre approaches and leaves the splice holder. A shorter compatible protector may assist with density, although it must still support the prepared splice area correctly.
The protector must cover the stripped fibre and fusion point. Therefore, the technician’s stripping and cleaving procedure should suit the sleeve length and splicer requirements.
Excessive stripping can leave bare fibre outside the protected area. Conversely, unsuitable preparation lengths may interfere with splicer alignment or heater positioning.
Where an organisation operates several fusion splicers or uses multiple enclosure types, standardisation can reduce errors. For example, a business may nominate a preferred sleeve size for a specific splicer and tray combination.
However, standardisation should follow a compatibility review. It should not assume that one protector suits every enclosure, tray or field application.
Correct installation begins before the fibres enter the fusion splicer. The installer should keep the protector clean, position it carefully and avoid unnecessary stress throughout the process.
Confirm the required sleeve length before preparing the fibre. In particular, check the heater oven and splice-tray holder.
Also, inspect the protector before use. The sleeve should appear clean and undamaged, while the stainless-steel strength member should remain straight.
Before fusion splicing, slide one protector onto one of the coated fibres. Then move it far enough away from the stripping, cleaning and cleaving area.
This step must occur before the fusion splice is completed. Once the two fibre ends have been fused, the installer cannot add a conventional closed protector without cutting and remaking the splice.
Use a suitable fibre stripping tool to remove the coating according to the fusion splicer’s preparation requirements.
Avoid damaging the glass during stripping. Even a small scratch can weaken the fibre and cause it to break during handling, heating or later service.
Clean the stripped fibre with the approved materials and method. The bare glass must remain free from coating residue, dust and contamination before cleaving.
At the same time, keep the open protector away from cleaning fluid and debris. Contamination inside the sleeve can affect the completed assembly.
Use a suitable precision fibre cleaver to produce the required end face. A poor cleave can cause excessive splice loss or fusion failure.
After cleaving, avoid touching the prepared glass. Instead, place the fibre directly into the fusion splicer.
Load both fibres into the fusion splicer and complete the selected splice program. Then review the machine’s splice-loss estimate and visual result.
If the splice shows a defect, cut it out and repeat the preparation process. Do not heat-shrink a protector over a splice that has already failed inspection.
Where the splicer includes an automatic proof test, allow that process to finish. Avoid manually pulling or flexing the bare splice.
Once the fusion cycle and proof test have finished, open the splicer clamps carefully.
Move the sleeve gently along the fibre until the fusion point sits near the centre. The prepared bare-fibre area should remain inside the protector.
While moving the sleeve, support the fibre and avoid sharp bends. The bare fusion point remains vulnerable until heating and cooling have been completed.
Transfer the centred protector into the heater oven. Then position the fibre according to the fusion splicer manufacturer’s instructions.
Ensure that the sleeve does not twist and that the strength member remains correctly aligned. In addition, check that the fibre exits naturally from both ends.
Select the heater program that suits the protector type and length. Then allow the complete cycle to run.
Do not interrupt the heating cycle unless the equipment manufacturer directs you to do so. Furthermore, do not use an uncontrolled heat source as a substitute for the fusion splicer heater oven.
The protector may remain hot and flexible immediately after heating. Therefore, transfer it carefully to the splicer’s cooling tray or another designated cooling position.
Allow the protector to cool before installing it in the splice tray. Otherwise, bending or pressing it while the adhesive remains soft may disturb the fibre’s position.
After cooling, inspect the sleeve for:
If the protector appears defective, do not attempt to cut the sleeve from the fibre while preserving the splice. Instead, follow the organisation’s approved rework procedure, which will generally require remaking the splice.
Finally, place the cooled protector into the designated holder. The sleeve should sit securely without excessive force.
Route the remaining fibre through the tray while maintaining the required bend radius. Additionally, confirm that the tray lid or enclosure cover will not press against the splice.
Several avoidable problems can reduce the quality of a protected splice.
This is one of the most common installation errors. Once the fibres have been joined, the installer cannot slide a standard closed sleeve over the splice.
Therefore, make placing the protector onto one fibre part of the standard preparation sequence.
If the splice sits too close to one end of the sleeve, the protector may not support the entire prepared section. In addition, bare fibre may extend beyond the adhesive area.
Always check the splice position before starting the heater cycle.
An incompatible sleeve may not fit the heater or splice tray. Furthermore, forcing a long sleeve into a short holder can create stress on the fibre.
Confirm compatibility before arriving on site, particularly when using an unfamiliar enclosure.
An unsuitable heater program can produce incomplete shrinking, excessive heating or uneven adhesive flow.
Therefore, use the equipment manufacturer’s recommended program for the sleeve format. If a custom program is required, it should be established through a controlled procedure.
The protector remains comparatively soft immediately after heating. Consequently, bending or pressing it too soon may affect its final shape.
Allow the full cooling period before placing the sleeve in the tray.
Dust, fibre fragments, coating residue or cleaning materials should not enter the sleeve. Keep protectors in their packaging until required and maintain a clean preparation area.
Before heating, the completed fusion splice has little mechanical reinforcement. Therefore, the technician should support the fibre while transferring the splice from the fusion chamber to the heater oven.
A correctly selected sleeve should fit the designated holder. If significant force is required, stop and check the sleeve and tray specifications.
Forcing the protector into place can damage the sleeve, holder or fibre.
A Fusion Splice Protector does not create the optical connection. Instead, the fusion splicer forms the connection by aligning and fusing the glass fibre.
Consequently, splice performance depends primarily on factors such as:
The protector then provides mechanical support for that completed joint. Therefore, it helps preserve a correctly made splice during installation and service.
If measured splice loss appears excessive, replacing or reheating the protector will not normally correct the underlying optical problem. The technician should investigate the splice itself and remake it when necessary.
RapidConnect Fusion Splice Protectors can support fusion-splicing work involving common singlemode and multimode optical fibres, provided the prepared fibre and coating dimensions suit the protector and equipment.
Potential applications include:
However, installers should not assume that every fibre construction uses the same preparation method. Ribbon fibre, speciality fibre and non-standard coating systems may require different protection products.
Therefore, confirm compatibility whenever the fibre or splicing process differs from conventional single-fibre fusion splicing.
Fusion splicing commonly joins an installed fibre optic cable to a connectorised pigtail. The pigtail provides the factory-terminated connector, while the fusion splice creates a permanent connection to the installed fibre.
During this process, the technician places the protector over either the cable fibre or pigtail before splicing. After completing and heating the splice, the technician installs the protected joint in the splice tray. Meanwhile, the pigtail routes from the tray to the adaptor panel.
Correct pigtail management remains important. The protected splice should sit securely in the holder, while the remaining pigtail length should follow the tray’s routing path.
For compatible connectorised fibres, visit the RapidConnect Fibre Optic Pigtails Authority Hub.
A protector and an enclosure perform different but complementary functions.
The Fusion Splice Protector reinforces the individual fusion splice. In contrast, the enclosure manages the fibres and protects the complete splicing system from its surrounding environment.
Depending on the application, an enclosure may provide:
Therefore, the splice protector should never be treated as a substitute for an appropriate enclosure.
For example, an outdoor joint still requires a correctly selected and sealed fibre optic splice closure. Similarly, an indoor termination requires a suitable wall box, rack enclosure or other fibre-management system.
Protecting the splice is only one part of a reliable installation. The fibre on both sides of the protector must also be routed correctly.
Always observe the specified minimum bend radius for the cable, buffer tube, pigtail or fibre involved. In addition, avoid crossing fibres tightly over the protector or trapping them beneath tray components.
The completed sleeve should sit in its holder without transferring tension to the fibre. Likewise, sufficient fibre should remain available for future maintenance or resplicing.
Good tray management provides several benefits:
Although a protector reinforces the splice point, unmanaged fibre can still experience excessive bending or pressure elsewhere in the tray.
Fibre optic installation work can involve sharp fibre fragments, cleaning chemicals, laser sources, electrical hazards and regulated customer cabling. Therefore, appropriately trained personnel should complete the work using suitable procedures and personal protective equipment.
Bare fibre fragments require particularly careful handling. They can penetrate skin and may be difficult to see. Consequently, installers should place all fragments into a dedicated fibre-disposal container and keep food and drinks away from the work area.
Installers should also avoid looking into fibre ends or connectors. Instead, they should use approved test equipment and follow the relevant laser-safety procedures.
In Australia, regulated customer cabling work must comply with the applicable rules and standards. The Australian Communications and Media Authority’s cabling standards guidance provides current information about the Wiring Rules, product requirements and cabling responsibilities.
Project requirements can vary. Therefore, the designer, contractor and registered cabler should confirm the standards, specifications and regulatory obligations that apply to the installation.
A consistent inspection process helps identify problems before the splice tray is closed.
Immediately after fusion splicing, review the splicer result. Then inspect the sleeve position before heating. Finally, inspect the protector again after it has cooled.
A completed protector should generally appear:
However, visual inspection does not replace optical testing. Depending on the project, testing may include an optical power meter and light source, optical loss test set or OTDR.
Testing requirements should follow the project specification and relevant standards. Furthermore, installers should retain the required records for handover and future maintenance.
Correct storage helps maintain protector condition before installation.
Keep unused Fusion Splice Protectors:
Remove a protector only when it is required. Then inspect it before use.
Do not use a sleeve if the outer tube appears split, crushed or contaminated. Likewise, do not use a protector if its stainless-steel strength member has become bent or displaced.
Once a sleeve has passed through a heater cycle, it should not be reused. If a protected splice must be removed, the technician should remake the splice with a new protector.
RapidConnect Fusion Splice Protectors are supplied in packs of 12.
Available ordering codes include:
Before ordering, confirm the required sleeve length against the fusion splicer heater oven and splice tray.
If several enclosure or splicer types operate across the same network, identify each required protector size separately. This approach reduces the risk of technicians receiving a sleeve that fits one system but not another.
Anderson Corporation can also assist customers with associated fusion-splicing products, including fusion splicers, fibre optic pigtails and fibre-management solutions.
RapidConnect Fusion Splice Protectors provide a straightforward method of reinforcing conventional single-fibre fusion splices.
Key benefits include:
Furthermore, the three available lengths allow installers to match the protector more closely to the equipment and enclosure used for each project.
Anderson Corporation supplies RapidConnect fibre optic products for commercial, industrial, telecommunications and data-network applications. Therefore, customers can source the splice protector alongside other components needed for a complete fibre installation.
A Fusion Splice Protector reinforces the exposed area around a completed fibre optic fusion splice. Once heated and cooled, it helps prevent bending and handling damage at the splice point.
No. The fusion splicer creates the optical joint before the protector is heated. Therefore, the protector does not improve the optical performance of a defective splice. Instead, it mechanically protects a correctly completed splice.
Slide the protector onto one fibre before stripping, cleaving and fusion splicing. Then move it away from the preparation area until the splice has been completed.
A conventional closed sleeve cannot be added after the fibres have been joined. If the protector was forgotten, the splice will generally need to be cut and remade.
Check the fusion splicer heater oven, splice-tray holder and enclosure documentation. The correct size must fit all three.
The 60 mm protector reinforces a longer section. However, that does not automatically make it the best choice. A compatible 30 mm sleeve may suit a compact tray, while another enclosure may require a 45 mm or 60 mm sleeve.
Do not force an incompatible sleeve into a holder. Instead, select the protector length specified for the tray.
RapidConnect specifications state a heating temperature greater than 125°C. However, fusion splicer heater programs also control heating duration and behaviour. Therefore, use the appropriate program recommended for the machine and sleeve type.
A fusion splicer heater oven provides controlled and consistent heating. Consequently, it should be used instead of an uncontrolled heat source. A heat gun can create uneven shrinking and may damage the protector or fibre.
No. The protector supports the individual splice and conforms around the fibre. However, the correctly selected and sealed enclosure provides the overall environmental protection.
Yes. Centre the fusion point so that the protector supports the prepared area on both sides of the splice.
The stainless-steel strength member provides longitudinal rigidity. Therefore, it helps prevent the protected splice from bending sharply.
Allow the protector to cool completely and keep it straight. Do not deliberately bend the protected section.
No. A heat-shrink protector is a single-use product. Once heated, it cannot return to its original size.
Removing a fully shrunk sleeve risks damaging the fibre and splice. Therefore, rework will generally require cutting out the protected section and completing a new fusion splice with a new protector.
Yes, they can support conventional single-fibre splicing of compatible singlemode fibres, including OS2 and G.657.A2 fibres.
Yes, they can also support conventional single-fibre splicing of compatible multimode fibres such as OM3 and OM4.
Standard single-fibre sleeves are not automatically suitable for ribbon fibre. Ribbon splicing may require a different protector format. Therefore, confirm the requirements of the ribbon fusion splicer and splice tray.
RapidConnect H30, H45 and H60 protectors are each supplied in packs of 12.
Allow the protector to cool and inspect it. If the sleeve remains visibly defective or fails to support the splice correctly, follow the approved rework process. Do not place a questionable protector into service.
Yes. Testing should follow the project specification. Depending on the installation, this may include insertion-loss testing, polarity verification and OTDR testing.
The Fusion Splice Protector Knowledge Centre will provide practical guidance across product selection, fibre preparation, heater operation, splice-tray compatibility and quality control. As the Knowledge Centre expands, each section will help installers protect fusion splices consistently throughout the installation lifecycle.
First, this section will explain how heat-shrink splice protectors work and why fusion-spliced fibres require mechanical reinforcement.
Articles coming soon.
Next, this section will compare 30 mm, 45 mm and 60 mm protectors. In particular, it will explain how heater ovens, splice holders and tray dimensions affect sleeve selection.
Articles coming soon.
This section will cover sleeve positioning, heater operation, cooling and correct placement inside the splice tray.
Articles coming soon.
Here, installers will learn how to identify incomplete shrinking, poor splice positioning, sleeve deformation and other common installation problems.
Articles coming soon.
This section will explore cleave quality, fusion-splicer results, sleeve inspection and optical testing after installation.
Articles coming soon.
Finally, this section will explain how protected splices should be secured and how the remaining fibre should be routed inside enclosures.
Articles coming soon.
RapidConnect Fusion Splice Protectors reinforce completed fibre optic fusion splices and help protect them during handling, tray installation and ongoing service. Moreover, the choice of 30 mm, 45 mm and 60 mm lengths allows installers to match the sleeve to compatible heater ovens and splice trays.
For the best result, select the required protector before beginning the splice. Then centre the completed joint, use the correct heater program and allow the sleeve to cool before placing it in the tray.
Contact Anderson Corporation for assistance selecting RapidConnect Fusion Splice Protectors or associated fibre optic splicing products.
Available products:
Choose RapidConnect Fusion Splice Protectors for consistent mechanical protection across professionally completed fibre optic fusion splices.
Be sure to check out the rest of the Anderson Product Range for another product that may be suitable for you!
Check out the official Anderson Corporation YouTube Channel for more useful Fibre Optic Information!
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