SENTINEL
series
Sentinel 14”x14”x4”, 18 ga. galvanized steel box
Sentinel 14”x14”x4”, 16 ga. galvanized steel box
Sentinel 14”x14”x4”, 18 ga. stainless steel box
Installation of arrestors in entry panel boxes, includes hardware. (Arrestors only).
Price: $9/unit, any brand or model. Increase quantity after adding to cart.
90˚ mounting bracket for M-348 units, rotates unit so terminal strip is facing up. Makes wiring duties much easier; with hardware.
Price: $9
Click for paint color samples
18”x14”x4”, 16 ga. galvanized steel box
18”x14”x4”, 18 ga. stainless steel box
$392
$410
Click to enlarge.
Concrete mounting fixture for entry panel.
Click pic for more info.
Terminal strip for rotor/control wire connections, 8 double terminals.
Price: $5.50
Copper wire lug for ground wire, 4-14 gauge, and 2-14 gauge.
4-14 ga., Price: $4.50
2-14 ga., Price: $5.25
Package of 25 self drilling sheet metal screws for mounting Morgan arrestors to copper or aluminum sheet.
Price: $4
Tinned copper ground braid, 1/2” wide and 3/4” wide. (Specify number of feet after adding to cart).
1/2”, Price: $1.10/ft.
3/4” Price: $2.25/ft.
Copper split bolt for connecting two 4 gauge copper ground wires.
Price: $4.00
Conduit install kit for entrance panel, comes with inside bushing, locknut, male adaptor and 12” of 1.5”, 2’, or 3” ID PVC conduit. Requires cutting conduit and terminating on the indoor side.
1.5” kit, Price: $14.50
2” kit, Price: $17.50
3” kit, Price: $24.50
Penetrox-A anti-oxidant connection grease. For all aluminum to aluminum and aluminum to copper connections. Prevents oxidation, corrosion and improves conductivity between arrestors and copper (or aluminum) sheet. Also great for antenna element construction.
2 oz., Price: $8.45
8 oz., Price: $20.95
For Morgan Mfg. lightning arrestors, go to our Morgan Mfg. products page.
For Alpha Delta lightning arrestors, go to our Alpha Delta products page.
Master Lock, brass lock with keys to keep nosy kids out of your entry panels. Fits on all boxes that come with new lid catch.
Price: $9.45
Sentinel Series™ entrance panel, bottom thru-wall hole
This version entry panel box has the large conduit hole in the back of box, bottom left or right corner, making it possible to run cables through a wall and between the floor joists. When you need to run cables under the floor, through a crawl space, or across the ceiling of a basement, this is the one to use! (If you need a hole in a back top corner, check out our original entry panel boxes HERE.) Boxes are hand crafted one at a time and customized for your specific needs.
Common, included features of all Sentinel Series™ entry panel boxes:
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• Made from galvanized steel or stainless.
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•Powdercoated your choice of many colors, seen below.
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•Lockable latch, padlocks available below.
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•Gasketed lid.
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•Designed to maximize number of arrestors while not kinking cables.
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•Copper mounting sheet.
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•Slots on bottom for copper strap to enter and ground copper sheet.
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•Grommet holes on bottom for cables; extra holes can be plugged for future use.
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•Larger cutouts for conduit in bottom also possible.
To order:
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1) Choose box size below. Adhere to notes below as to how many arrestors can fit in each size box.
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2) Pick a paint color from chart above and type it in, along with any other notes such as number of grommet holes or position of conduit. (We will go over details via email before I start building.)
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Then click “add to cart” button.
3) Pick out “Optional Accessories” below, including grommets and plugs. These do NOT come
with the box; all accessories are a la carte.
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4) Let me know of any additional requirements by sending me an email. I will correspond with you
before starting. Thanks!
Weatherproof cable glands, for large RG8, and smaller RG58/8x cables. Note: Cables need to be run through BEFORE adding connectors. Cable glands useful in keeping box water tight when circumstances require cables entering from sides or top of box. For standard bottom fed cables, regular grommets are adequate. Glands are black in color.
Large (RG8), Price: $2.95
(fits in 7/8” hole)
Small (RG58/8x), Price: $2.95
(fits in 3/4” hole)
Rubber grommets for cable entry into boxes. FITS PL-259 and N CONNECTORS! Specify quantity after adding to cart.
Price: $.75/ea
Plastic plugs to seal unused holes. Specify quantity after adding to cart.
Price: $.50/ea
Self adhesive weatherstripping for sealing box to wall of home. (Size specific.)
Small box: $4.50
Medium box: $6.50
Large box: $7.50
Extra large box: $8.95
For Polyphaser. lightning arrestors, go to our Polyphaser. products page.
We also stock and install POLYPHASER, ALPHA DELTA and MORGAN MANUFACTURING surge protectors in our boxes! Arrestors can be pre-installed for a small charge; see “Optional Accessories” below to select this option.
Visit our FAQ page.
Strut channel for junction boxes, entry panels, plus clamps and accessories can be found here, see link below.
Masonry mounting kit for mounting an entry panel or junction box to a brick, stucco, or concrete wall. Requires a 1/4” masonry drill bit and (preferably) a hammer drill. Plugs install in a 1.5” deep by 1/4” hole; screws are stainless steel and 1.5” long, perfect for installation in the pre-punched mounting holes in the entry panels and junction boxes.
Price: Masonry mounting kit $4
Price: Screws only, for wood,
siding, etc. $2
Grommet to cable seals. Round foam tubing slides over coax cables and seals cable inside of rubber grommet. Keeps critters and cold air out of your entry panel box.
Price: $.75 ea.
Wire pulling lubricant
makes it easy to install
grommet to cable
seals. 2oz. is just
enough to install two
dozen seals without
having to buy a large container.
Price: $2.95 ea.
Flat strap attachment hardware allows for easy bonding of 2” wide copper strap onto left or right bottom corner of entry panel box. Copper strap slides up through bottom and is sandwiched into clamp. Comes pre-installed; you provide strap. No drilling necessary.
Price: $40/unit
18”x14”x4” boxes can hold:
5 Morgan arrestors*, OR
4 Morgan arrestors* plus one Morgan M-348 rotator arrestor, OR 3 Morgan arrestors* plus two Morgan M-348 rotator arrestors,
10 Alpha Delta arrestors, OR
8 Alpha Delta arrestors plus one Morgan M-348 rotator arrestor,
9 Polyphaser arrestors, OR
7 Polyphaser arrestors plus one M-348.
Recommended conduit size: 2”
*Using Morgan double units can double the number of these units.
Grommet for ladder line!
Click pic for more info.
$307
$332
$350
14”x14”x4” boxes can hold:
3 Morgan arrestors*, OR
2 Morgan arrestors* plus two Morgan M-348 rotator arrestors,
7 Alpha Delta arrestors, OR
5 Alpha Delta arrestors plus one Morgan M-348 rotator arrestor,
6 Polyphaser arrestors, OR
5 Polyphaser arrestors plus one Morgan M-348.
Recommended conduit size: 2”
*Using Morgan double units can double the number of these units.
Sub floor
Floor joists
Foundation
Sill plate
Area where cables need to go through siding or exterior and go under floor.
The problem: If cables need to go through an exterior wall in the space between first floor and basement (or crawl space), then the entry panel box needs a hole in the bottom.
If a regular entry panel was placed here with a top thru-wall hole, then the box would be very low and hanging partially on siding and partially on the foundation. Besides looking bad, the cable grommets in the box’s bottom may be right in the dirt.
The solution: Use an entry panel with a thru-wall hole in the bottom corner, allowing the box to be higher on the siding and not on the foundation wall. This leaves room for cables to enter the bottom through grommets and providing for good cable radius.
Arrestors are mounted to the included copper sheet vertically down the center. Cable flow is in an inverted U pattern (as seen in photos), with all cables from antennas entering in the bottom on a far left or right side, and the cables going through wall on the opposite side as entry.
If your circumstances dictate cables coming in/out the bottom (and NOT going through the wall), then consider a Junction Box.
2x4 wall
Siding
Basement or crawl space
Foundation
14”x14”x4” Sentinel Series box, with a mix of Morgan and Alpha Delta arrestors. Note the Morgan M-348 rotator arrestor in the bottom position. Powdercoated Sand Granite. Grommets are usually in a 2x2 pattern (4 grommets), 2x3 (6 grommets), or 2x4 (8 grommets. More can be added as all boxes are custom made.
14”x14”x4” Sentinel Series box, with Morgan arrestors. Medium brown powdercoat. Thru-wall hole can be in either left or right bottom corner. Cables enter in grommets on bottom left. Conduit entry is also possible. See notes below regarding how much of what arrestors fit in these boxes.
14”x14”x4”entry panel box with bottom corner hole, includes copper sheet and your color choice of powdercoat paint in the metals and gauges below.
18”x14”x4”entry panel box with bottom corner hole, includes copper sheet and your color choice of powdercoat paint in the metals and gauges below.
Comes with small grommet strategically placed below stud used to mount the copper sheet into box. This allows for easy bonding of copper wire through the box and into a wire lug, as pictured. Lugs available below.
