Lightolier MBS2GPW254 Indoor Furnishings User Manual


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Mini-Beam 2' x 4' Recessed Fluorescent MBS2GPW254
Page 2 of 2 Direct/Indirect, Static, 2 Lamp, Linear T5, 54 Watt or 28 Watt
Lightolier a Genlyte Thomas Company www.lightolier.com
Technical Information: (978) 657-7600 • Fax (978) 658-0595
631 Airport Road, Fall River, MA 02720 • (508) 679-8131 • Fax (508) 674-4710
We reserve the right to change details of design, materials and finish.
Copyright 2004 Lightolier Section5/Folio M20-22 Rev. A
Job Information Type:
Ordering Information
Explanation of Catalog Number. Example: MBS2GPW254120PGGLR
Options/Accessories
Fusing: Internal fast-blow fusing. Suffix: GLR.
Internal slow-blow fusing. Suffix: GMF.
Electrical/Wiring Options: Consult factory.
Specifications
Performance: In an installation of 2 lamps 54W luminaires in a room cavity of
1, with reflectance of 80% ceiling, 50% walls, 20% floor, the C.U. shall not be
less than .74. To reduce glare the average brightness at 65° shall not exceed
8112 candelas per square meter. To control veiling reflections, luminaire output
in the 30°-90° zone shall not be less than 74.8%.
Materials: Housing is die-formed 20 gauge steel.
Finish: Chassis exterior–baked white acrylic enamel. Reflector–baked flat
white acrylic enamel, minimum 86% reflectance. Phosphate undercoating.
Lamp Shield–baked flat white acrylic enamel.
Electrical: Thermally protected class “P” ballast C.B.M. approved, non PCB. If
K.O. is within 3" of ballast, use wire suitable for at least 90°.
Labels: I.B.E.W./UL and ULc Listed.
Photometry
Model No. MBS2GPW254120PG
MB
Mini-Beam
Direct/Indirect
Recessed
with Perforated
Mesh Shield
2
Fixture
Width
G
Ceiling Type:
Fits both
Standard Grid
and
Slot Grid
P
Perforated
Lamp Shield
W
White
Reflector
Voltage:
120 or 277
Options:
Add appropriate
suffix to catalog
no, ie: (GLR)
Ballast:
PI = Linear T5
Instant Start
Less than 10 THD
PG = Programmed
Start
Less than 10 THD
DA = DALI digital
addressable
dimming
coefficients of utilization — zonal cavity method (effective floor cavity reflectance 0.20)
RF 20 20 20
RC 80 50 30
RW 70 50 30 50 30 10 50 30 10
1777470 696764 666462
2706459 605652 575451
3635649 524743 504643
4584942 464137 444036
5534437 413632 403531
6493933 373227 363127
7453529 342824 332824
8423226 312522 302521
9393024 282319 282319
10 37 27 21 26 21 18 25 21 17
visual comfort probability
room size ceiling height ceiling height
W L 8.5 10.0 13.0 16.0 8.5 10.0 13.0 16.0
20 20 36 44 57 71 28 36 51 67
20 30 31 36 43 55 24 26 33 47
20 40 30 32 37 44 23 24 26 33
20 60 29 31 34 39 23 23 24 27
30 20 35 42 53 67 30 37 49 64
30 30 30 34 40 51 25 27 32 44
30 40 28 30 34 41 24 24 25 31
30 60 28 29 31 35 23 23 22 25
30 80 29 30 29 33 24 24 22 24
40 20 36 42 51 64 33 39 49 63
40 30 31 33 38 48 27 29 33 44
40 40 29 30 33 39 26 26 26 31
40 60 29 29 29 33 25 25 23 25
40 80 30 29 28 31 26 25 22 24
40 100 31 30 28 31 27 26 23 23
60 30 33 35 38 47 30 31 34 44
60 40 31 31 32 37 28 27 26 32
60 60 30 29 28 32 27 26 23 25
60 80 31 30 27 30 27 26 23 24
60 100 32 31 23 29 28 26 23 23
100 40 35 35 34 38 33 32 30 35
100 60 34 33 30 32 31 30 26 28
100 80 35 33 29 30 31 29 25 26
100 100 36 33 29 29 32 29 25 25
room cavity ratio
luminaries lengthwise
luminaries crosswise
LER = FL - 60.5 IW - 120.2 BF - 1.00
Comparative yearly lighting energy cost per 1000 lumens = $3.96
S
Body Style:
S = Static
2
Lamp
Quantity
Lamp Quantity:
(By others)
54 = HO/T5 54 Watt
28 = 28 Watt T5
For Local 3 Manufacturing, substitute for . Example: MNS2GPW154120PGGLR .
MN
MN
For Local 3
Manufacturing
MB
THIS REPORT IS BASED ON PUBLISHED INDUSTRY PROCEDURES • FIELD PERFORMANCE MAY VARY FROM LABORATORY PERFORMANCE.
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