Greenbelt Applications

Grade Level Boxes (GLB™)

SGLB3048-36

The SGLB 3048 is the latest addition to Channell’s Shutter Box Series family of grade level boxes. Leading the way with the SGLB 1730 and SGLB 2436, Channell has proven and set new high performance standards in the industry for subsurface thermoplastic enclosures.

The SGLB 3048 features a straight sidewall "I Beam" construction combined with a high rib design that greatly enhances the cover’s load bearing qualities. Unlike tapered boxes, the straight sidewall design of Channell's Shutter Box Series grade level boxes provides support for the cover's load across the entire vertical sidewall. A strength member molded into the sidewall and an added center crossbar neutralize sidewall deflection.

These features allow the SGLB 3048 to be used in greenbelt applications where boxes must meet or exceed 3,000 pounds vertical load. When equipped with the applicable covers, they can be used in sidewalk applications and are able to withstand the heavier load requirements and meet or exceed 20,000 pound vertical load specifications.

Channell’s factory installed stud system allows a full range of options including the installation of a galvanized rack system, horizontal brackets and a two-position swing arm bracket. All of these options can be pre-installed at our factory or installed in the field after vault installation. The SGLB 3048 is available with a standard depth of 36" (914.4mm), or an optional depth of 24" (609.6mm). It can easily store 650 ft. (200 meters) of 0.5" (12.7mm) diameter fiber cable, in addition to the industry's largest fiber and copper splice cases.

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Features and Benefits

Removable crossbar is standard feature on all SGLB3048 applications
Straight sidewall “I-beam” design permits higher vertical load-bearing capacity
Cross-ribbed sidewall eliminates sidewall deflection in extreme soil conditions, securing box placement during final grade and over the life of the underground installation placement during final grade
High quality HDPE body with additional mold-in strength member carries load evenly across sidewall to eliminate bowing and sidewall deflection on the lower half of the base
Solid single piece thermoplastic covers and polymer concrete split lid covers are available with a variety of logo markings

Universal “L” bolt security system (available only on thermoplastic covers) eliminates the worry of losing the cover bolts of cover bolts
Unique “T” style overlapping cover design improves appearance and reduces soil migration into box
Four winterized drop access points are standard with all SGLB 3048 units
Cable locator/marker device can be added in a protected recessed area on the underside of the cover

Specifications


Length:	52.25" (1.33m)
Width:	34.75" (0.88m)
Depth:	36.0" (0.92m)

Ordering Information

	SGLB	3048	XX	X	X	X	X	X	A04
Shutter Box Series GLB	SGLB
Cover Size 30" x 48"		3048
Body Depth 24 - 24" (Optional) 36 - 36" (Standard)			XX
Cover Color 1 - Green 3 - Gray				X
Cover Identification B - Broadband N - Blank T - Telecommunications					X
Cover Type 1 – Solid thermoplastic 2 - Polymer Concrete Cover (2-piece) 3 - Polymer Concrete Cover and Ring						X
Cover Security 1 - "L" bolt (available only on thermoplastic covers) 2 - Bolt-down 3 - Penta Bolt							X
Racking 0 – None (Equipped with eight mounting studs for mounting brackets and racks) 1 – Step racks (Three 15" racks) 2 – Swing-arm with butterfly mounting plate 3 – Step racks(3) and swing-arm 4 – Sidewall mounting plate 6 – Step racks and large steps (3 ea.) 8 - Swing-arm only 9 - Cable loop harness								X
Accessory Options A04 - Marker/Locator									A04