Lightolier DPB2S9LS3FT/2U Page 2 of, Photometry, Options & Accessories, Specifications, Type

Section 2A/Folio G50-86 REV. B

DEEPCELL SURFACE DPB2S9LS3FT/2U OR 17

Page 2 of 2

PHOTOMETRY

G90051

DPB2S9LS3FT120X3

2' x 2' SURFACE FLUORESCENT, 3" TYPE, 9 CELL PARABOLIC LOUVER 3 LAMP TWIN TUBE T5, 1-5/8" U LAMP OR 2' LAMP T8

MODEL NO. DPB2S9LS3FT120X3 coefficients of utilization — zonal cavity method

	RF		20			20			20
	RC		80			50			30
	RW	70	50	30	50	30	10	50	30	10
ratio	1	69	67	65	63	61	60	60	59	58
	3	60	55	51	52	49	47	51	48	46
	2	64	60	57	57	55	53	55	53	52
cavity	4	55	50	45	47	44	41	46	43	41
	5	51	45	40	43	39	36	42	38	36
room	6	47	40	36	39	35	32	38	34	32
	8	40	33	28	32	27	24	31	27	24
	7	44	36	32	35	31	28	34	31	28
	9	37	29	25	28	24	21	28	24	21
	10	34	27	22	26	22	19	25	21	19

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		71	62	58	62		75	67	63	71
20	30		75	67	61	55		78	72	68	59
20	40		75	71	66	59		81	75	72	64
20	60		75	71	70	63		83	77	75	68
30	20		75	69	60	63		80	73	83	69
30	30		79	73	63	56		83	70	68	59
30	40		79	76	68	60		85	79	72	63
30	60	lengthwise	79	76	71	64	crosswise	86	80	75	67
40	40		79	77	72	61		85	79	75	64
30	80		79	76	71	64		85	80	75	70
40	20		75	69	65	64		80	73	68	69
40	30		79	74	68	58		83	77	72	60
40	60	luminaries	79	77	75	65	luminaries	85	80	78	68
40	80		79	77	75	65		85	80	78	70
40	100		79	77	75	65		85	80	78	70
60	30		79	74	69	61		83	77	74	63
60	40		79	77	73	65		84	80	78	67
60	60		79	77	77	68		85	80	80	70
60	80		79	77	77	69		85	80	80	73
60	100		79	77	77	69		85	80	80	73
100	40		79	77	73	65		84	80	78	67
100	60		79	77	77	69		85	80	80	71
100	80		80	77	76	70		85	80	80	73
100	100		80	77	76	70		85	80	80	74

ORDERING INFORMATION Explanation of Catalog Number. Example: DPB2S9LS3FT120X3GLR

DP B 2 S S

3

DEEPCELL		FIXTURE		NUMBER OF		BALLAST
PARABOLIC:		WIDTH		CELLS		COVER
Pre-anodized				9 or 12
Aluminum
Louver
	BODY STYLE:		CEILING		LOUVER FINISH*:
	Surface Box		TYPE:	L= Low-iridescence semi-specular
			S=Surface		(standard)

P= Low-iridescence specular

W=White Paint

*Consult factory for availability of louver finishes.

LAMP

QUANTITY:

(By Others)

3=3 Lamp

LAMP/

FIXTURE LENGTH:

2U=T8, 1-5/8" U Lamp

FT=Twin Tube T5

17=T8, 2' Lamp

(Nominal 24")

VOLTAGE:		OPTIONS:
120 or 277	Add appropriate suffix
	to catalog no., ie: (GLR)
BALLAST TYPE:
	<20THD <10THD
1 & 2 Elec. T8	SO*	HI*
1-3 Lamp Elec. T8	O3*	H3*
1 & 2 Lamp Elec. T5	SB*	IB*
1-3 Lamp Elec. T5	X3*	I3*
LOL Dimming T8	PS	–
LOL Dimming T5	PB	–

*Instant Start Standard

Other dimming options. Consult factory.

OPTIONS & ACCESSORIES

STEM AND CANOPY SETS: Suspends fixture 6", 12", 18" or 24" from surface.

(Four per fixture is recommended.) Catalog Number: ASC6 CSP (6"), ASC12 CSP (12"), ASC18 CSP (18"), ASC24 CSP (24")

FUSING: Internal fast-blow fusing.

SUFFIX: GLR.

Internal slow-blow fusing.

SUFFIX: GMF.

RADIO INTERFERENCE FILTER 120 or 277 volt, 50 or 60 Hz. One per fixture is standard. SUFFIX: RF.

ELECTRICAL/WIRING OPTIONS Consult factory.

SPECIFICATIONS

PERFORMANCE: In an installation of 3U lamp 40W luminaires in a room cavi- ty ratio of 1, with a reflectance of 80% ceiling, 50% wall, 20% floor, the C.U. shall not be less than .67. To prevent glare the VCP shall be not less than 79 either lengthwise or cross wise (at 100fc level) and the average brightness at 65° shall not exceed 682 footlamberts. To control veiling reflections, luminaire output in the 30°-90° zone shall be not less than 64%.

MATERIALS: Chassis parts are die-formed 20 gauge cold rolled steel, stud-

SPECIFICATIONS (continued)

welded for rigidity with all seams finished smooth. LOUVER: pre-anodized aluminum (Coilzak® or equal).

STANDARD FINISH: Louver—low iridescence, semi-specularpre-anodized vertical grain reflector sheet. Cavity—white baked acrylic enamel minimum 86% reflectance. Phosphate undercoating. Chassis exterior—white baked 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 C-UL.

Job Information	Type:
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.

© 2002 Genlyte Thomas Group LLC (Lightolier Division) A0902