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521S Series Doors
Model 521S

EverServe® Aluminum Glass Door model 521S is a sectional aluminum door appropriate for environments where maximum light infiltration and/or visual access is required. Designed to fit openings up to 20'2" (6147 mm) wide and 18'1" (5512 mm) high, the Model 521 features a wide, 2-11/16" (68 mm) center stile, 3-3/4" (95 mm) or 4-1/2" (114 mm) bottom rail, based on door size.
Color Options
Anodized Finishes




Clear (Standard)
Light Bronze
Medium Bronze
Dark Bronze
Power Coat Color Options
PowerGuard Premium powder coat options are available in approximately 200 colors as well as custom matching to specification.
Glass Options

Double Strength (DSB)

Gray Tint

Satin Etched

Obscure

Impact Frosted Polycarbonate

Green Tint

Bronze Tint
Construction
Standard Max Width: 20' 2"
Standard Max Height: 18' 1"
Panel Thickness: 1-3/4"
Lock: Galvanized, Interior-Mounted Single Unit
Lock: Galvanized, Interior-Mounted Single Unit
Rollers: Nylon (Standard) Steel (Wind Load)
Control Panel: Electronic controller with micro-processor self-diagnostics. Digital readout, time delay self-close timer and non-resettable cycle counter. Enclosure is IP54 rated (NEMA 3 equivalent)
Actuator: Single open/close/stop push button station incorporated into control panel
Hinges & Fixtures: Galvanized Steel
Operation: Direct drive integrated gear/motor/brake assembly; Drive assembly and limit sensors are factory pre-assembled; Manual hand chain for power outage; Horsepower appropriate to door size/weight; 230V AC 3-phase motor (operating range 208-245V)
Center Stile Width: 2-11/16"
End Stile Width: 3-5/16"
Top Rail Width: 2-3/8"
Mounting: Side mount, left or right, vertical only
Top Int. Rail Width: 2-1/8"
Bottom Int. Rail Width: 1-19/32"
Bottom Rail Width: 3-3/4"
Top Int. Rail Width: 2-1/8"
Bottom Int. Rail Width: 1-19/32"
Bottom Rail Width: 3-3/4"
Options
Finish Options:
*Bronze
*Anodized or Painted
*PowerGaurd Permium powder coat and
*PowerGaurd Max hardened powder coat available in approximately 200 colors
*PowerGard Textured Finish
Operations Options:
*208vt, Single Phase, 60 Hz (190-207V range)
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*208vt, Three Phase, 60 HZ, (208-245V range)
*230vt, Singe Phase, 60Hz (208-245V range)
*230vt, Three Phase, 60Hz (208-245V range)
*460vt, Three Phase, 60Hz (456-495V range)
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*575vt, Three Phase, 60Hz (517-632V range)
Accessory Options:
*Receivers/Transmitters/radio control
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*Loop & Motion Detectors
*Additional push buttons/Treadle Switch/Horn/Strobe
*Key Switch/Traffic Light/Warning Light/LED System Break
*Cover/Gear Box Heater/Transformer 9KVA
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*Coil-Cord Kit/ Hand Chain Extension/Hoist Switch Extension
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*Photo Eye
Window Glazing Options:
*1/8" DSB
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*1/8" or 1/4" Acrylic
*1/8" or 1/4" Tempered
*1/8" or 1/4" Clear Polycarbonate
*1/4" or 3/8" Twin-Wall Polycarbonate. 5/8" Triple-Wall Polycarbonate
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*1/4", 3/8" & 5/8" Twin-Wall Polycarbonate, Triple-Wall Polycarbonate 1/4" Wire Glass
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*1/2" Insulated Glass
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