Tu-Wire Overview. Fluorescent Dimming Ballasts Tu-Wire 5% High-Performance Dimming

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1 Overview Tu-wire ballasts are primarily intended for retrofit applications where fluorescent dimming must be achieved without changing the existing switching wiring scheme. Tu-wire ballasts require only two input wires (hot and neutral), used both for power and dimming control. Tu-wire ballasts offer high performance dimming from 00% down to 5% for linear and compact fluorescent lamps. eatures ontinuous, flicker-free dimming from 00% to 5% -wire line voltage control for wiring simplicity Models for T4 compact and T8 lamp types Programmed rapid start design will preheat lamp cathodes before applying full arc voltage Lamps turn on to any dimmed level without flashing to full brightness in (5 mm) high, low-profile design for use in low-profile architectural fixtures requency of operation ensures that ballast does not interfere with infrared devices operating between 38 and 4 kz nrush current limiting circuitry eliminate circuit breaker tripping, switch arcing, and relay failure nd-of-lamp-life protection circuitry ensures safe oper-ation throughout entire lamp life cycle for T4 lamps Ultra quiet operation Protected from shorts between any one lamp lead and ground Low-line voltage protection circuitry prevents damage to the ballast or lamps if the ballast is connected to an incompatible dimmer 00% compatible with all Lutron -wire fluorescent controls 00% performance tested at factory esigned and assembled in the U.S.. allasts that dim T4 compact fluorescent lamps are intended for factory installation by OM fixture manufacturers 5-year limited warranty with Lutron field service commissioning (3-year standard warranty) from date of purchase, case type 3.00 in (76 mm) W x.00 in (5 mm) x 4.90 in (4 mm) L, case type 3.00 in (76 mm) W x.00 in (5 mm) x 6.75 in (7 mm) L, case type.8 in (30 mm) W x.00 in (5 mm) x 8.00 in (457 mm) L c SPTON SUMTTL Page

2 Specifications c Performance imming Range: 00% to 5% measured relative light output (RLO) Lamp Starting: programmed rapid start Minimum Lamp Starting Temperature: 50 (0 ) mbient Temperature Operating Range: 50 to 40 (0 to 60 ) Relative umidity: maximum 90% noncondensing Operating Voltage: 0 V~, 60 z nominal line Lamp urrent rest actor: less than.7 Lamp licker: none visible Light Output: constant ±5% light output for line voltage variations of ±0% Lamp Life: average lamp life meets or exceeds rating of lamp manufacturer allast actor: greater than 0.85 Power actor: greater than 0.95 tal armonic istortion (T): less than 0% at full light output requency of Operation: greater than 4 kz Maximum nrush urrent: 7 per ballast at 0 V~ Sound Rating: naudible in a 7 d ambient Maximum allast ase Temperature: 67 (75 ) Standards alifornia nergy ommission () Listed UL Listed (evaluated to the requirements of UL935) S certified (evaluated to the requirements of. No. 74) * lass P thermally protected Meets NS 8. igh requency allast Standard Meets Part 8 non-consumer requirements for M/R emissions -lamp ballasts for 4-pin compact fluorescent lamps meet Part 8 consumer requirements for M/ R emissions ( : JP00) Meets NS 6.4 ategory surge protection standards up to and including 6 kv Manufacturing facilities employ S reduction practices that comply with the requirements of NS/S S0.0 Lutron Quality Systems registered to SO * or all models except 5 W T8 SPTON SUMTTL Page

3 allast Models c VOLTS Lamp Type T4 4-pin Quad-tube or Triple-tube Lamp Watts (length) Lamps per ballast ase Type allast urrent () Model Number 8 W 0.4 W-T48-0--S (studded) W-T48-0- (non-studded) 6 W 0.7 W-T46-0--S (studded) W-T46-0- (non-studded) / in (.7 mm) diameter T4 4-pin Triple-tube 0.53 W-T46-0--S (studded) W-T46-0- (non-studded) 3 W 0.33 W-T43-0--S (studded) W-T43-0- (non-studded) / in (.7 mm) diameter T8 Linear and U-bent in (5 mm) diameter 7 W [4 in (60 mm)] 5 W [36 in (94 mm)] 3 W [48 in (9 mm)] 0.58 W-T43-0--S (studded) W-T43-0- (non-studded) 0.40 W-T W-T85-0- W-T85-0- W-T83-0 W-T83-0 SPTON SUMTTL Page 3

4 ase imensions c Threaded Stud 0.9 in (7.4 mm) 4.0 in (07 mm).00 in (5 mm) 3.00 in (76 mm) 4.90 in (4 mm) 4.60 in (7 mm) (mounting centers).00 in (5 mm).08 in (7 mm).60 in (4 mm).39 in (35 mm) 8-3 Threaded Stud 0.9 in (7.4 mm) 6.00 in (5 mm).00 in (5 mm) 3.00 in (76 mm) 6.75 in (7 mm) 6.50 in (65 mm) (mounting centers).00 in (5 mm).00 in (5 mm).60 in (4 mm).39 in (35 mm) 6. in (409 mm).00 in (5 mm).8 in (30 mm) 8.00 in (457 mm) 7.70 in (450 mm) (mounting centers) Mounting studs are provided on models ending in "-S". When ordering, delete the suffix -S in the ballast model number if the mounting studs are not needed. SPTON SUMTTL Page 4

5 Wiring iagrams c One T4 ompact Lamp lack (immed ot) imming ontrol allast lue lue 4-pin Lamp older Two T4 ompact Lamps imming ontrol lack (immed ot) allast lue 4-pin Lamp older 4-pin Lamp older lue imming control wire colors do not necessarily match the ballast wire colors (e.g. control dimmed hot may be red and ballast dimmed hot may be black). Wire colors shown are for Lutron ballasts and controls only. allast and lighting fixture must be effectively grounded. Note: or T4 compact lamps, the maximum lamp-to-ballast wire length is 3 ft ( m). SPTON SUMTTL Page 5

6 Wiring iagrams c One T8 Lamp imming ontrol lack (immed ot) imming allast luorescent Lamp 3 lue lue Two T8 Lamps imming ontrol lack (immed ot) imming allast luorescent Lamp 3 luorescent Lamp 3 imming control wire colors do not necessarily match the ballast wire colors (e.g. control dimmed hot may be red and ballast dimmed hot may be black). Wire colors shown are for Lutron ballasts and controls only. allast and lighting fixture must be effectively grounded. 3 ncludes 6 in (5 mm) T8 U-bent lamps. Note: or T8 lamps, the maximum lamp-to-ballast wire length is 7 ft ( m). SPTON SUMTTL Page 6

7 TTNTON LTRNS N ONTRTORS allast/socket Leads Lead lengths from ballast to socket must not exceed 7 ft ( m) for T8 linear lamps, and 3 ft ( m) for T4 compact lamps. Lamp Sockets Quality lamp sockets are required to ensure positive lamp-pin to socket contact. T8 lamps require knife-edge sockets. U-bent lamps require locking sockets and proper lamp support to hold lamp pins in full contact with the socket. Lamp Mounting Many fluorescent lamp sockets are available with mounting slots to vary the height of the lamp away from the grounded metal surface. aving a fluorescent lamp too close to the grounded metal will reduce lamp life. aving a fluorescent lamp too far away from the grounded metal will make the lamp flicker or not turn on at all. Please note that all of the lamp heights are measured between the grounded metal surface and the glass wall of the lamp. Lamp Mounting height allast Mounting for T4 Lamps Lamp Socket (side view) rounded metal MPORTNT: Lamps must never touch ground plane and should be placed without obstruction. o not allow lamp glass to come in direct contact with any grounded metal surface. Mounting for T8 Lamps Mount lamps /8 to 3/4 in (3. to 9 mm) away from the grounded metal surface. allast Operating Temperature allast case temperature must not exceed 67 (75 ) at any point on ballast c old ir low nsure that no cold air (from V system, etc) is blowing across the lamps. ooling the lamp will cause performance issues as noted in NM LS-34. Wiring and rounding ll wiring from the dimming control to the ballasts is line voltage wiring and may be run together in the same conduit. allast and lighting fixture must be effectively grounded. allasts must be installed per national and local electrical codes. Number of allasts per ontrol calculate the maximum number of ballasts allowed per control, divide control s current capacity by individual ballast current. ertain controls allow a specific maximum number of ballasts. TTNTON LTS MNRS PRORMN Lamps Seasoning Requirements Some fluorescent lamp manufacturers recommend that new fluorescent lamps be operated at full output ( seasoned ) before they can be dimmed, to render lamp impurities inert, ensuring proper dimming performance and average rated lamp life. Please contact your lamp manufacturer for seasoning requirements. SRV Replacement Parts Use replacement parts with exact Lutron model numbers. onsult Lutron if you have any questions. urther nformation or further information, please visit us at or contact our 4-hour Technical Support enter at SPTON SUMTTL Page 7