Catalog
Number
Notes
FEATURES & SPECIFICATIONS
INTENDED USE ­— Ideal for parking lots, walkways and entrances.
CONSTRUCTION ­— Rugged, heavy-gauge, lightweight aluminum housing. Rectilinear shape,
continuously seam-welded for weather-tight integrity.
Type
Naturally anodized, extruded, aluminum doorframe with mitered corners is retained with (two) .188"
diameter hinge pins and secured with (one) quarter-turn, quick release fastener.
Arm-Mounted Rectilinear Cutoff Lighting
Weather-proof seal between housing and door frame is accomplished with an integrally designed, extruded,
silicone gasket that snaps into door frame.
KT1
Lens is .125" thick, impact-resistant, tempered glass with thermally-applied, silk screened power door
shield.
Finish: Standard finish is dark bronze (DDB), polyester powder with optional architectural colors available.
OPTICS ­— High reflectance, white reflector, IES cutoff distribution.
LOW PRESSURE SODIUM: 90W
ELECTRICAL ­— High reactance autotransformer is 100% factory tested. Double contact bayonet socket.
INSTALLATION ­— Extruded, 4" aluminum arm for pole or wall mounting.
LISTINGS ­— UL listed for wet locations. Listed and labeled to comply with Canadian Standards (see
Options).
Note: Specifications subject to change without notice.
20' to 30' Mounting
Specification
4
(10.2)
15-3/4
(40.0)
EPA: 2.3 ft2 (.21m2) (includes arm)
Length: 29-3/4 (75.6)
Width: 15-3/4 (40.0)
Depth: 8-1/4 (21.0)
Arm length: 4 (10.2)
*Weight: 42 lbs (19 kg)
8-1/4
(21.0)
29-3/4
(75.6)
All dimensions are inches (centimeters) unless otherwise specified.
*Weight as configured in example below.
ORDERING INFORMATION
Example: KT1 2/90L 120 SP04 LPI
For shortest lead times, configure product using bolded options.
KT1
Series
Wattage
Voltage
KT1
90L
2/90L
120
2081
2401
277
347
4801,2
Ballast
(blank) Magnetic
Mounting3
Options
Shipped separately4, 5
SP04
4" square pole arm
RPO4
4" round pole arm
WWO4 4" wood pole or wall arm
WB04
4" wall bracket arm
SP06
6" square pole arm
RP06
6" round pole arm
WW06 6" wood pole or wall arm
WB06
6" wall bracket arm
DA12P Degree arm (pole)
DA12WB Degree arm (wall)
KMA
Mast arm adapter
KTMB
Twin mounting bar
Accessories: Tenon Mounting Slipfitter
Order as separate catalog number.
Tenon O. D.
2-3/8”
2-3/8”
4”
OUTDOOR
One
T20-190
T25-190
T35-190
Two@180°
T20-280
T25-280
T35-280
Two@90°3
T20-290
T25-290
T35-290
Three@120°
T20-320
T25-320
T35-320
Three@90°3
T20-390
T25-390
T35-390
Four@90°3
T20-490
T25-490
T35-490
Shipped installed in fixture
SF
Single fuse (120, 277, 347V)
DF Double fuse (208, 240, 480V)
PER NEMA twist-lock photoelectric
receptacle13
EC Emergency circuit6
CSA Listed and labeled to comply with
Canadian Standards
Shipped separately4
PE1 NEMA twist-lock photocontrol (120,
208, 240V)
PE3 NEMA twist-lock photocontrol (347V)
PE4 NEMA twist-lock photocontrol (480V)
PE7 NEMA twist-lock photocontrol (277V)
SC Shorting cap for PER option
Finish7
Lamp8
(blank) Dark bronze
DWH White
DBL
Black
DMB
Medium bronze
DNA
CR
Natural aluminum
Corrosion resistant
finish
LPI
Lamp
included
L/LP Less lamp
Notes
1 Consult factory for availability in Canada.
2 Reactor ballast.
3 The SP06, RP06 or WW06 must be used when two or more luminaries are oriented on a 90° drilling pattern.
4 May be ordered as accessory.
5 Must specify finish when ordered as an accessory.
6 Maximum allowable wattage lamp included.
7 See www.lithonia.com/archcolors for additional color options.
KT1-L
KT1 Arm-Mounted Rectilinear Cutoff Lighting
Coefficient of Utilization
Initial Footcandles
KT1
.0
.1
.2
.3
.4
.5
.6
2
1
0
5
2.5
1
.5
.25
1
2
3
4
0
1
2
3
4
5
DISTANCE IN UNITS OF MOUNTING HEIGHT
Test No. 1190022803
COEFFICIENT OF UTILIZATION
6
2/90LW Low Pressure Sodium lamp, 13500 rated
lumens. Footcandle values based on 25'
mounting height, Distribution , cutoff.
Notes
1. For electrical characteristics consult outdoor technical data specification sheets on www.lithonia.com.
2. Tested to current IESNA and NEMA standards under stabilized laboratory conditions. Various operating factors can
cause differences between laboratory and actual field measurements. Dimensions and specifications are based on
the most current data and are subject to change.
Mounting Height Correction Factor
(Multiply the fc level by the correction factor)
15 ft.= 2.78
18 ft.= 1.93
20 ft.= 1.56
30 ft.= 0.69
2
Existing Mounting Height
= Correction Factor
New Mounting Height
KT1-L
OUTDOOR: One Lithonia Way Conyers, GA 30012 Phone: 770.922.9000 Fax: 770-918-1209 www.lithonia.com
©2001-2010 Acuity Brands Lighting, Inc. All rights reserved. Rev. 12/6/10