Renogy Solar Double Cable Entry Housing MTS-CE User Manual

Content

Renogy Solar Double Cable Entry Housing MTS-CE Manual

Introduction

The Renogy Solar Double Cable Entry Housing MTS-CE provides a practical way to route two solar cables through an RV, boat, van, shed, or other roof-mounted solar installation. Its compact housing encloses the cable pass-through point, helping create a cleaner appearance while reducing exposure to rain, sunlight, dirt, and debris.

Made from UV-resistant ABS plastic, this dual cable entry gland is designed for outdoor use and is suitable for many aluminum-framed solar panel installations. The two cable openings allow positive and negative solar leads to pass through one housing, which can simplify wiring layouts and reduce the number of roof penetrations.

The housing supports a drill-free mounting approach when installed with a suitable compatible sealant, although a roof opening is still required for the cables. It is useful for permanent solar panel installations on recreational vehicles, marine platforms, cabins, and other off-grid systems. The waterproof cable glands can be tightened around the cables to help limit movement and improve weather resistance.

This Renogy cable entry housing is best suited to installers who need a compact, low-profile cable route rather than a junction box or electrical disconnect. It does not replace proper overcurrent protection, cable insulation, roof sealing, or professional electrical installation practices.

Specifications and Key Features

Product: Renogy Solar Double Cable Entry Housing MTS-CE
Housing material: UV-resistant ABS plastic
Approximate dimensions: 4.7 × 3.9 × 2.0 inches
Approximate component weight: 7.9 ounces
Cable gland diameter range: 6 mm to 12 mm
Cable routing: Dual entry for two solar cables
Weather protection: Waterproof-rated cable glands when correctly installed and tightened
Recommended adhesive: Sikaflex 252 or a comparable roof-compatible adhesive and sealant
Typical applications: RV solar panels, boat solar systems, camper vans, cabins, and off-grid structures
Panel compatibility: Intended for use with Renogy solar panels and many aluminum-framed panels
Mounting method: Adhesive mounting with cable routing through the roof

Confirm that the cable outer diameter falls within the 6 mm to 12 mm gland range before installation. Cable size, roof material, sealant compatibility, and local electrical requirements should also be checked for the specific project.

How to Install the Renogy MTS-CE Cable Entry Housing

Disconnect the solar panel cables from the charge controller, battery system, and other energized equipment. Cover the solar panel to reduce electrical output during installation.
Select a flat roof location with enough clearance for the housing, cable bend radius, and interior wiring. Avoid roof supports, existing wiring, plumbing, and drainage channels.
Place the housing in position and mark the cable passage location. Check the inside of the roof before drilling.
Drill an appropriately sized cable opening. Remove sharp edges and clean away dust, grease, and loose material.
Feed the solar cables through the housing before routing them through the roof. MC4 connectors may need to pass through the housing before the roof opening is completed.
Apply a continuous layer of compatible adhesive and sealant to the underside of the housing. Position it firmly on the roof without blocking the cable glands.
Route the cables into the interior and leave enough length for service loops. Tighten each gland clockwise until the cable is secure and does not move freely.
Allow the sealant to cure according to its manufacturer’s instructions before exposing the installation to water or mechanical stress.

Do not overtighten the glands, sharply bend the cables, or rely on sealant to support loose wiring. After curing, inspect the seal and perform a controlled water check before reconnecting the solar system.

Troubleshooting the Renogy Solar Double Cable Entry Housing MTS-CE

Cable moves inside the gland

Check that the cable diameter is within the 6 mm to 12 mm range. Tighten the gland gradually and confirm that the cable remains undamaged. If the cable is too small, use a correctly sized gland or compatible installation component rather than forcing the seal.

Water enters around the housing

Inspect the entire adhesive bead for gaps, contamination, lifting, or incomplete curing. Remove failed sealant carefully, clean and dry the surface, and reseal with a roof-compatible product. Do not apply new sealant over wet or dirty material.

Cable insulation is damaged

Look for sharp edges around the drilled opening. Disconnect the system, replace damaged cable, smooth the opening, and protect the cable from abrasion before reinstalling the housing.

Housing separates from the roof

Verify that the roof surface was clean, dry, and compatible with the adhesive. Excessive movement, poor preparation, or premature water exposure can weaken the bond.

Support and warranty assistance

Keep the purchase record, product photographs, installation details, and sealant information. For product-specific guidance, contact Renogy support at +1 (909) 287-7111 during listed support hours or email support@renogy.com. Warranty terms should be confirmed in the documentation supplied with the product.

Pros and Cons

Advantages

Dual cable routing: Positive and negative solar leads can pass through one compact housing.
Outdoor-ready material: UV-resistant ABS plastic is suited to exposed roof installations.
Cleaner installation: The housing covers the cable entry area and creates a more finished appearance than an unprotected roof opening.
Flexible use: It can suit RVs, boats, vans, cabins, and other solar mounting surfaces.
Adjustable glands: Cable glands can be tightened around compatible cable diameters to reduce movement.
Simple layout: One housing can reduce the need for separate positive and negative roof penetrations.

Limitations

Requires roof penetration: Adhesive mounting may avoid mounting screws, but the cables still require an opening through the roof.
Sealant-dependent: Long-term water resistance depends heavily on surface preparation and correct sealant application.
Limited cable range: Cables outside the 6 mm to 12 mm gland range may not seal correctly.
Not an electrical enclosure: The housing does not provide circuit protection, cable joining, or a substitute for a junction box.
Best suited to permanent installations: Users needing frequent cable removal or a serviceable disconnect may prefer a dedicated cable gland system or junction enclosure.

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Faqs

How do I install the renogy Solar Double Cable Entry Housing MTS-CE on an RV, boat, or roof?

Choose a clean, dry, level mounting area with enough room for both solar cables. Test-fit the MTS-CE, route the cables, and confirm that the glands can tighten around them. Apply a compatible outdoor adhesive such as Sikaflex 252 or an equivalent, then press the housing firmly into place. Follow the adhesive manufacturer’s curing instructions before exposing the installation to rain or tension. Route cables with gentle bends and secure them to prevent movement.

Does the renogy Solar Double Cable Entry Housing MTS-CE require drilling during installation?

The renogy Solar Double Cable Entry Housing MTS-CE is designed for drill-free surface mounting when the cable route can enter through an existing opening or a suitable roof penetration. However, a new cable opening may still be necessary depending on your installation. Never force cables through a sealed surface or enlarge an opening without checking the roof structure, wiring, and waterproofing requirements. Seal any penetration separately and keep the entry path free from sharp edges.

What cable sizes are compatible with the renogy Solar Double Cable Entry Housing MTS-CE?

The MTS-CE cable glands accommodate cable diameters from approximately 6 mm to 12 mm. Measure the outside diameter of each complete cable, including its insulation, before installation. The gland should compress firmly around the cable without crushing it or leaving a visible gap. If your solar cable is outside this range, use a properly sized entry gland rather than relying on excess sealant or over-tightening the MTS-CE.

Can the renogy Solar Double Cable Entry Housing MTS-CE be used with non-Renogy solar panels?

The renogy Solar Double Cable Entry Housing MTS-CE is intended for solar cable routing and is described as suitable for virtually any aluminum-framed solar panel. Compatibility depends mainly on cable diameter, roof surface, available mounting space, and the panel system’s wiring arrangement. Before installation, verify that both cables fit the glands and that the housing can be bonded securely to the mounting surface. The enclosure does not replace correctly rated solar connectors or cable protection.

What should I do if water enters the renogy Solar Double Cable Entry Housing MTS-CE?

Disconnect the affected solar circuit safely before inspecting the housing. Check whether the adhesive fully surrounds the base, whether the roof surface was clean during installation, and whether the cable glands are tightened evenly around the cables. Look for cracks, displaced cables, or gaps caused by movement. Dry the area completely, repair or replace damaged sealing materials, and retest after curing. Do not rely on surface caulk alone if the housing or gland is damaged.

Why are the solar cables difficult to pull through the renogy Solar Double Cable Entry Housing MTS-CE?

Cable resistance usually results from an undersized gland, excessive bending, debris inside the entry path, or cables being pulled at an angle. Loosen the gland before routing and confirm that the cable diameter falls within the MTS-CE range. Use gradual bends rather than sharply folding the cable near the housing. Never drag connectors through a tight opening or use excessive force, because this can damage insulation, seals, or solar connectors.

How can I improve the weatherproof performance of the renogy Solar Double Cable Entry Housing MTS-CE?

Prepare the surface carefully by removing dust, grease, wax, and loose coating before applying adhesive. Position the housing so water cannot collect around its edges, and maintain continuous adhesive contact beneath the base. Tighten both cable glands evenly after setting the cable length, but avoid over-tightening. Leave adequate curing time before washing the roof or driving in wet conditions. Inspect cable support and sealant after major temperature changes or roof movement.

How should I maintain the renogy Solar Double Cable Entry Housing MTS-CE after installation?

Inspect the MTS-CE several times a year and after severe weather. Check the UV-resistant ABS housing for cracks, discoloration, or distortion, and examine the adhesive edge for lifting or gaps. Confirm that cable glands remain tight and that cables are not rubbing against sharp surfaces. Clean the housing with mild soap and water, avoiding solvents that may weaken plastic or sealant. Replace the housing or reseal the installation if damage threatens the waterproof barrier.