Lightolier 340, 440, 240 Photometry, Ordering Information, Options & Accessories, Specifications

SECTION 1A/Folio F50-11 REV. B

	XT, XR XT2/XR2 SERIES 240/340/440
Page 2 of 2	2'x4' LAY-IN RECESSED FLUORESCENT STATIC, FLAT STEEL LENS FRAME (XT)
	REGRESSED ALUMINUM LENS FRAME (XR), 2, 3, 4 LAMPS, T8 OR T12

PHOTOMETRY

MODEL NO. XT2GVA340120SO coefficients of utilization — zonal cavity method

	RF		20			20			20
	RC		80			50			30
	RW	70	50	30	50	30	10	50	30	10
	1	89	86	83	81	78	76	78	76	74
ratio	2	82	76	72	72	68	65	70	67	64
	3	76	68	63	65	60	56	63	59	55
cavity	4	70	61	55	58	53	49	56	52	48
	5	64	55	48	52	47	42	51	46	42
room	6	59	49	43	47	41	37	46	41	37
	7	55	44	38	43	37	33	41	36	32
	8	51	40	33	38	33	28	37	32	28
	9	47	36	29	34	29	25	34	28	24
	10	43	33	26	31	26	22	31	25	22

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		64	68	75	82		61	65	72	79
20	30		57	61	66	73		54	58	63	69
20	40		54	57	62	66		49	53	58	62
20	60		51	54	57	61		46	49	52	57
30	20		65	69	74	80		63	67	72	78
30	30		58	61	65	70		55	59	62	68
30	40		54	57	60	64		50	53	57	60
30	60		50	53	55	59		46	49	51	55
30	80	lengthwise	49	51	52	55	crosswise	44	46	48	51
40	40		55	57	60	63		51	54	57	61
40	20		66	70	75	79		65	69	73	78
40	30	luminaries	59	63	66	70	luminaries	57	60	64	68
40	60		51	53	55	58		47	49	51	54
40	80		49	51	51	54		44	47	48	51
40	100		49	50	50	52		43	45	45	48
60	30		60	63	66	70		58	62	65	69
60	40		55	58	60	63		53	56	58	61
60	60		51	53	55	58		48	50	51	55
60	80		49	51	51	54		45	47	47	50
60	100		49	50	49	51		44	45	45	48
100	40		58	60	62	65		56	59	61	64
100	60		54	55	56	59		51	53	54	57
100	80		51	52	52	55		48	49	49	52
100	100		50	51	50	52		46	47	46	48

ORDERING INFORMATION

Explanation of Catalog Number. Example: XT2GVA340120SOGLR

		2
XT = Recessed
	Fluorescent
	with Flat Steel	FIXTURE
	Lens Frame	WIDTH

XR= Recessed Fluorescent with Regressed Aluminum Lens Frame

G

VA

40

CEILING

TYPE:

LAMP

QUANTITY:

VOLTAGE:

OPTIONS:

G = Grid (lay-in

2, 3 or 4 Lamps

120 or 277

BALLAST

TYPE:

Add appropriate

T-bar)

LENS/SHIELDING

LAMP/

LE=Magnetic (T12)

suffix to catalog no,

TYPE:

FIXTURE LENGTH:

OC=Magnetic (T8)

ie: (GLR)

VA = Virgin Acrylic

(Nominal 48")

SS=Electronic (T12)

(standard) see

S3=1-3 Lamp Elect. (T12)

options and

SO=Electronic Elect. (T8)

consult factory

O3=1-3 Lamp Elect. (T8)

O4=1-4 Lamp Elect. (T8)

DIM=Dimming (T12)

PS=LOL Power Spec T8

Dimming Ballast

OPTIONS & ACCESSORIES

SPECIAL LENSES: Substitute VB for .125" nominal pattern 12 with 7.8 oz. average weight per square foot. Substitute VI for .125" nominal pattern 12 with 6.9 oz. average weight per square foot.

ACCESS PLATES: Top wiring access plate is shipped with fixture as standard. When access plates are required in advance for wiring convenience, specify separately. Order Catalog Number: ACP CSP.

ELECTRICAL/WIRING OPTIONS: Consult factory.

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.

SPECIFICATIONS

PERFORMANCE: In an installation of 4 lamp 40 W luminaires in a room cavity ratio of 1, with reflectance of 80% ceiling, 50% walls, 20% floor, the C.U. shall not be less than .78. To reduce glare the VCP shall be not less than 42 either lengthwise or crosswise (at 100 fc level) and the average brightness at 65 shall not exceed 718 footlamberts. To control veiling reflections, luminaire output in the 30°-90° zone shall be not less than 66%.

MATERIALS: Chassis parts are die-formed code gauge cold rolled steel. Housing is embossed for added strength and rigidity with all edges rolled over

for safe handling. Lens frames—(XT) flat full-size steel frame, (XR) regressed full-size aluminum frame.

FINISH: Chassis exterior—white baked polyester enamel. Cavity—white baked polyester enamel minimum 86% reflectance. Phosphate undercoating. LENS: Extruded virgin acrylic 3/16" square based female cones, running 45° to the panel edge, .095" nominal thickness (similar to pattern 12).

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. Listed by Underwriters Laboratories.

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