Page 1
Micro-Bay
Luminaire
Page 2
Cable Mounting Kit
Suspension is convenient
and flexible with the SS
Aircraft Cable “Y” Toggle
Mounting Kits. Adjustment
for luminaire mounting height
is provided at luminaire
rather than structure.
Occupancy Sensor
Integral occupancy
sensor available and
provides from 600
sq. ft. up to 1250 sq.
ft. of coverage in a
maximum mounting
height of 40'.
3
1
4
2
1 2
Reflectors
Highly specular reflectors
for precise light control.
Three optical distribution
patterns are available:
Focus - SC < .9
Task - .9 ≤ SC < 1.2
Normal - 1.2 ≤ SC ≤ 1.4
3
5
Micro-Bay luminaire
The MB series (Micro-Bay) is a functional and multi-purpose low profile fluorescent high bay that incorporates
premium performance and durable construction. Designed for T5 and T8 fluorescent technology, the MB series
offers both high performance and application versatility.
Micro-Bay is designed for narrow or medium distributions in high mounting applications.
Row mounting of the Micro-bay is easily accomplished with an external rigid section connector that provides
excellent row alignment through the entire length of the row. Suspension is convenient and flexible with the SS
Aircraft Cable “Y” Toggle Mounting Kits. Adjustment for luminaire mounting height is provided at luminaire rather
than structure height.
Energy Savings – Up to 70% energy reduction for comparable light levels.
Superior Lumen Maintenance and Longer Lamp Life – Rated at 25,000+ hours based on 10 hour starts.
Improved Color Rendering – Improves visual acuity for a more pleasant work environment.
Instant Ignition – Easy and inexpensive integration with emergency lighting requirements.
Increased Energy Savings – Programmed Rapid Start ballasts and pre-wired configuration allow for utilization
of Occupancy Sensors with Photo Control ability, further reducing energy consumption.
Page 3
System Performance
The Micro-Bay series delivers high performance in a streamlined package. The Micro-Bay’s large assortment of
optical distributions meet a wide range of mounting heights and aisle configurations – providing unmatched uniformity
performance. The Micro-Bay is the solution to improving visibility while delivering the lowest watts/sq. ft.
Plug-In Connectors
Optional pre-wired factory installed
multiple circuit plug-in connectors.
5
Rigid Exterior Connector
Rigid exterior connector/coupling
with pre-punched holes facilitates
easy installation of coupled
sections up to 32' long.
4
Watts/Sf.ft. Horizontal (Avg.)
Footcandles
Vertical (5 ft.)
Footcandles
1.51
25
6
Watts/Sf.ft. Horizontal (Avg.)
Footcandles
Vertical (5 ft.)
Footcandles
2.88
30
8
I5
4 Lamp, T5HO
PSMH
400 Watt
Watts/Sf.ft. Horizontal (Avg.)
Footcandles
Vertical (5 ft.)
Footcandles
.8
30
6
Micro-Bay
1 Lamp T8
Focus Beam
Based on: 120' x 10' aisle,
25' mounting height
Page 4
Illuminance Levels (FC) & Watts Per Sq. Ft. (LPD)
Based on 120 ft. x 10 ft. Aisle
Micro-Bay
20 ft 25 ft 30 ft 35 ft 40 ft
Qty FC LPD Qty FC LPD Qty FC LPD Qty FC LPD Qty FC LPD
MB-132-NB 30 31 0.8 38 32 1.01 44 31 1.17 52 31 1.39 58 30 1.55
MB-154-NB 17 31 0.84 21 31 1.03 24 35 1.18 28 30 1.38 32 30 1.57
MB-232-FB 16 31 0.76 19 30 0.90 23 31 1.09 26 30 1.24 30 30 1.43
MB-254-FB 11 32 0.99 13 31 1.17 16 32 1.44 18 31 1.62 20 30 1.80
Dimensions
T5 Lamp Configurations
Task Beam, 1 or 2 Lamp
5-11/16"
[145mm]
X
X=2-11/16"
[69mm]
1-1/8"
[29mm]
9-1/16" [231mm]
Focus Beam, 1 Lamp
Normal Beam, 1 or 2 Lamp
Focus Beam, 1 or 2 Lamp
Normal Beam, 1 or 2 Lamp
Task Beam, 1 Lamp
5-7/8"
[150mm]
X
X=2-11/16"
[69mm]
1"
[26mm]
7-7/32" [184mm]
T8 Lamp Configurations
Top View
4' and 8'
Coefficients of Utilization
Effective floor cavity reflectance 20%
rc 80% 50% 30%
rw 70 50 30 10 50 30 10 50 30 10
RCR
0
1
2
3
4
5
6
7
8
9
10
Zonal Lumen Summary
Zone Lumens %Lamp %Fixture
0-30
0-40
0-60
0-90
0-180
112 112 112 112 105 105 105 100 100 100
101 97 92 88 90 87 84 87 84 81
92 84 77 71 78 73 69 75 71 67
84 73 65 59 69 62 57 66 61 56
76 65 56 50 61 54 49 59 53 48
70 58 49 43 55 47 42 53 46 41
65 52 43 37 49 42 37 48 41 36
60 47 39 33 45 38 32 44 37 32
56 43 35 29 41 34 29 40 34 29
52 40 32 26 38 31 26 37 31 26
49 37 29 24 35 28 24 34 28 24
722 25.3 26.9
1133 39.8 42.3
2012 70.6 75.0
2679 94.0 99.9
2682 94.1 100.0
Coefficients of Utilization
Effective floor cavity reflectance 20%
rc 80% 50% 30%
rw 70 50 30 10 50 30 10 50 30 10
RCR
0
1
2
3
4
5
6
7
8
9
10
Zonal Lumen Summary
Zone Lumens %Lamp %Fixture
0-30
0-40
0-60
0-90
0-180
113 113 113 113 106 106 106 101 101 101
102 97 93 89 91 88 85 87 84 82
93 84 77 71 79 73 69 76 71 67
84 73 65 59 69 62 57 66 61 56
77 65 56 49 61 54 48 59 53 48
70 58 49 42 55 47 42 53 46 41
65 52 43 37 49 42 36 48 41 36
60 47 39 33 45 37 32 43 37 32
56 43 35 29 41 34 29 40 33 29
53 40 32 26 38 31 26 37 30 26
49 37 29 24 35 28 24 34 28 23
700 24.6 25.8
1104 38.7 40.7
2001 70.2 73.8
2707 95.0 99.9
2711 95.1 100.0
MB-132-NB-UNV-EB81
Electronic Ballast
(1) 32W T8 Lamp, 2850 lumens
Spacing criterion: (II) 1.2 x mounting
height, (⊥) 1.2 x mounting height
Efficiency 94.1%
Test Report: 10267
MB-132-TB-UNV-EB81
Electronic Ballast
(1) 32W T8 Lamp, 2850 lumens
Spacing criterion: (II) 1.2 x mounting
height, (⊥) 1.0 x mounting height
Efficiency 95.1%
Test Report: 10266
Photometrics
Task Beam, 2 Lamp
3-9/32"
[84mm]
4-5/16"
[110mm]
X
1-31/32" [51mm]
X=2-11/16"
[69mm]
1-3/16"
[31mm]
8-5/8"
[220mm]
X
X=2-11/16"
[69mm]
29/32"
[24mm]
4-3/16"
[107mm]
Focus Beam, 2 Lamp
Coefficients of Utilization
Effective floor cavity reflectance 20%
rc 80% 50% 30%
rw 70 50 30 10 50 30 10 50 30 10
RCR
0
1
2
3
4
5
6
7
8
9
10
Zonal Lumen Summary
0-30
0-40
0-60
0-90
0-180
115 115 115 115 108 108 108 103 103 103
108 105 102 99 99 97 95 95 94 92
101 96 91 87 91 87 84 88 85 82
95 87 81 76 83 78 75 81 77 73
88 79 73 68 76 71 66 74 69 66
82 72 65 60 69 64 59 68 63 59
77 66 59 54 64 58 53 62 57 53
72 61 64 49 59 53 48 57 52 48
67 56 49 44 54 48 43 53 47 43
62 51 44 39 49 43 39 48 43 39
58 47 40 36 46 40 35 45 39 35
1251 43.9 45.3
1758 61.7 63.7
2535 88.9 91.9
2759 96.8 100.0
2759 96.8 100.0
MB-132-FB-UNV-EBT1
Electronic Ballast
(1) 32W T8 Lamp, 2850 lumens
Spacing criterion: (II) 1.2 x mounting
height, (⊥) 0.5 x mounting height
Efficiency 96.8%
Test Report: 09363
Illuminance Estimator
Choose the spacing and mounting
height to determine the average
footcandle and watts per square
foot values.
2-11/16"
[69mm]
3-9/32"
[84mm]
X=2-11/16"
[69mm]
3-9/32"
[84mm]
X=2-11/16"
[69mm]
3-3/8"
[86mm]
X=2-11/16"
[69mm]
3-11/32"
[85mm]
X=2-11/16"
[69mm]
7/8" [23mm] K.O. (3)
Ceiling Stand-Off
Embossments
(4’) 43-3/4" [1112mm]
(4’) 48" [1220mm]
4-5/16"
[110mm]
4-5/16"
[110mm]
7-9/16"
[193mm]
7-3/32"
[181mm]
X
X
X
X
1-31/32" [51mm]
1"
[26mm]
1-31/32" [51mm]
1-7/1 6"
[37mm]
29/32"
[24mm]
29/32"
[24mm]
1-3/4" x 3-1/4" K.O. (1)
Ground Screw Bump
(8’) 91-3/4" [2330mm]
(8’) 96" [2438mm]
⊥
||
||
||
Page 5
SAMPLE NUMBER: MB-154T5-FB-UNV-EBT1-U
Number of Lamps
1=1 Lamp
2=2 Lamps
Lamp Types
32=32W T8 (48")
54T5=54W T5HO (48")
Blank=4' Length
8T=8' Tandem
Length
Series
MB= Micro-Bay
Options
PI/CPI=Plug-In (1, 2 or 3)
Specify Circuit
(see PI Ordering Information Below)
C3=3' Power Cord
(4)
C6=6' Power Cord
(4)
PC3-=3' Power Cord & Plug
(3), (4)
(Specify Voltage)
PC6-=6' Power Cord & Plug
(3), (4)
(Specify Voltage)
Packaging
U=Unit Pack
Reflector
FB=Focus Beam
TB=Task Beam (Medium)
NB=Normal Beam
Accessories (order separately)
AYC-CHAIN/SET/U=(2) Hooks, 36" Chain
Sets w/S-Hooks
(6)
GRIPPLE-Y- =Y Mounting Toggle, #2 Cable
(Specify 10' or 30')
GRIPPLE-TOGGLE-=Single Toggle, #2 Cable
(Specify 10' or 30')
MB-EXT-LONG-CONN-KIT-U= Rigid Connector
Support for Continuous Channel Installation
MS=Aisle Coverage Motion Sensor
(3), (7)
MSO=360˚ Coverage Motion Sensor
(3), (7)
MB-SENSOR-KIT-CTR/MT-U=Aisle Coverage
Motion Sensor, Center Mount Hardware,
120/277V
MB-SENSOR-KIT-END/MT-U=Aisle Coverage
Motion Sensor, End Mount Hardware,
120/277V
MB-SENSOR-KIT-CTR/480V-U=Aisle Coverage
Motion Sensor, Center Mount Hardware,
480V
MB-SENSOR-KIT-END/480V-U=Aisle Coverage
Motion Sensor, End Mount Hardware, 480V
WG/MB-4FT-T5-NB-B=Wireguard for T5HO
(8)
NOTES:
(1)
Products also available in non-US voltages and frequencies for international
markets.
(2)
Voltage to be specified with emergency ballast option.
(3)
Voltage must be
specified when ordered with plugs, motion or emergency ballasts.
(4)
Cannot be combined
with PI/CPI option. See below.
(5)
2 lamp ballast configurations only in UNC versions.
(6)
Not for use in high abuse applications such as gymnasiums.
(7)
Must ship as accessory
separately.
(8)
For use with T5HO Focus, Normal or Wide Beam optics only.
(9)
UNC option
available on select T8 ballast systems. Consult factory.
MB Ordering Information for T5 and T8
Catalog Circuit
Number Number of Wired To
Suffix Circuits Ballast
PI 1 BLK 1 Black
PI 2 BLU 2 Blue
PI 2 BLK 2 Black
PI 3 RED 3 Red
PI 3 BLU 3 Blue
PI 3 BLK 3 Black
BLK=Black Hot
PI1= Single
Circuit
NG= No Ground (ground provided
by fixture body)
WG= With Ground (separate
ground wire in harness)
PI1 - Single Circuit Plug-In
SAMPLE NUMBER: PI1BLK-WG
BLK=Black Hot
BLU=Blue Hot
PI2=Two
Circuit
NG= No Ground
(ground provided by
fixture body)
WG= With Ground
(separate ground wire
in harness)
PI2 - Two Circuit Plug-In
SAMPLE NUMBER: PI2BLK-WG
Leave Blank=Single
Neutral
/WHT=White Neutral
/GRY=Gray Neutral
Leave Blank=Single
Neutral
2NEU=Two Neutrals
BLK=Black Hot
BLU=Blue Hot
RED=Red Hot
PI3= Three
Circuit
NG= No Ground (ground provided
by fixture body)
WG= With Ground (separate
ground wire in harness)
PI3 - Three Circuit Plug-In
SAMPLE NUMBER: PI3BLK-WG
Leave Blank=Single
Neutral
/WHT=White Neutral
/GRY=Gray Neutral
Leave Blank=Single
Neutral
2NEU=Two Neutrals
For complete product data, reference the Fluorescent Specification binder. Specifications & dimensions subject to change without notice. Consult your Cooper Lighting Representative for availability
and ordering information.
Catalog Numbering System
The PI System is available in sections up to 8' in length for continuous row wiring by simply plugging the
sections together. Each PI section is factory wired to the ballast leads. Color coding of wires is as follows:
PI-1 = One Circuit - 2 Wires: one black, one white
PI-2 = Two Circuits - 3 Wires: one black, one blue, one white
PI-3 = Three Circuits - 4 wires: one black, one blue, one red, one white
When ordering the PI2/PI3 System it is necessary to specify the number of fixtures required for each circuit.
Each circuit in fixture must be ordered as a separate line item, with a different hot wire color specified.
All wiring to external feeds, using cord or cord & plug, are responsibility of installing licensed contractor. Cord
and cord & plug sets must be ordered separately if PI option is chosen.
PI Ordering Information
Voltage
UNV=Universal
120-277 Voltage
UNC=Universal
347/480 Voltage
(9)
Options
GL=Single Element Fuse
GM=Double Element Fuse
EL=Emergency Installed
(2)
Ballast Type
(1)
T5 Systems
EBT
=T5 Linear Electronic Program Rapid
Start. Total Harmonic Distortion < 10%
(5)
EHT =T5 Linear Electronic Program Rapid Start
High Ambient.
Total Harmonic Distortion < 10%
(5)
DIM=Dimming
T8 Systems
(9)
No. of Ballast
1 or 2
No. of Ballast
1 or 2
EB8 =T8 Electronic Instant Start.
(5)
Total Harmonic Distortion < 10%
EB8 /PLUS= T8 Electronic Instant Start.
(5)
High Ballast Factor >1.15.
Total Harmonic Distortion < 10%
ER8
=T8 Electronic Program Rapid Start.
Total Harmonic Distortion < 10%
ER8
/PLUS= T8 Electronic Program Start.
High Ballast Factor >1.15.
Total Harmonic Distortion < 10%
DIM=Dimming
No. of Ballast
1 or 2
No. of
Ballast
1 or 2
No. of Ballast
1 or 2
No. of
Ballast
1 or 2
Page 6
Printed in USAADF081052
Cooper Lighting
1121 Highway 74 South
Peachtree City, GA 30269
P: 770-486-4800
www.cooperlighting.com
Cooper Lighting, Metalux and F-Bay are valuable trademark of Cooper Industries in the United States and other countries.
You are not permitted to use the Cooper Trademarks without the prior written consent of Cooper Industries.
Cooper Lighting
Customer First Center
1121 Highway 74 South
Peachtree City, GA 30269
P: 770-486-4800
F: 770-486-4801
www.cooperlighting.com
International Sales, USA
Cooper Lighting
1121 Highway 74 South
Peachtree City, GA 30269
P: 770-486-4800
F: 770-486-4801
Canada
Cooper Lighting
5925 McLaughlin Road
Mississauga, Ontario L5R 1B8
P: 905-507-4000
F: 905-568-7049
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