codes and standards • • • • • • • • UL listed to standard 924 NFPA 101 (Life Safety Code) NFPA 70 (National Electric Code) OSHA illumination standards UL 94V-O Flame rating UL listed for damp locations UL 1008 Transfer Switch Rated UL listed for field installation CB-34300 installation • The MTD20D doesn’t affect normal luminaire operation and comes fully assembled for immediate installation. • In addition to available wiring, the device requires a direct, unswitched connection to a normal power circuit and depending on the application, an unswitched connection to a generator-supplied or central inverter system-supplied emergency panel. Transfer Device MTD20D Series Dimming electronics • Universal input voltage 120/277. • VAC 50/60Hz. • The MTD20D works in conjunction with an • The MTD20D senses the loss of normal power auxiliary generator or central inverter system to and switches the lighting load, connecting it to a power designated emergency lighting loads up to user-designated emergency circuit. No routine 20 amps regardless of local switch position. The maintenance is required to keep the MTD20D device consists of relay switching circuitry in a functional; however, like other life safety unit single, wall-mountable enclosure. The MTD20D equipment, it should be checked periodically to senses the loss of normal power and, in response, ensure that it is working properly. switches the lighting load to a designated alternate • Surge and short circuit protection. power source. The device can be used to: (1) transfer a lighting load from normal power to • Operating temperature: -4°F (-22°C) to generator or central inverter system power when 131°F (55°C). normal power is lost; (2) bypass a wall switch • Visual power readiness indicators provide status to allow generator- or central inverter systemat a glance. supplied lighting loads to energize when normal power is lost; (3) bypass a dimming panel and • Audible emergency power circuit failure alarm. prevent backfeed to allow lighting to energize at full • Built in manual emergency circuit test feature. brightness in an emergency situation; and (4) bypass • Momentary test switch. most dimming controls using an auxiliary relay contact. The MTD20D includes three dry form • Emergency egress lighting shall be provided by C contacts, which allows the user a wide variety using existing lighting loads equipped with a of wiring options. The MTD20D is not limited to MTD20D emergency lighting relay control device. emergency lighting applications. For additional • The device shall be capable of bypassing the local applications and information, contact the factory. switching means when normal utility power has The MTD20D is suitable for use in indoor and been lost. damp locations. • Lighting load rating – 20A max • Energy Conservation-Recent energy mandates • Electrical rating – 4.0 Watts (sensing circuit only) require improved vigilance in the conservation of resources. By eliminating the need for nightlight • AC input current - 45mA circuits, MTD20 power controls conserve energy • Approved lighting loads- Any type by allowing all area ambient lighting to be turned • Full 20 amp load capability. off while still assuring the availability of emergency illumination in the event of a utility power failure. warranty application construction • The MTD20D consists of relay switching circuitry, a test switch, a normal power indicator light and an alternate power indicator light contained in one 9"x6"x3.5" enclosure. • Weight: 5 lbs. • Five year warranty from date of purchase. Ordering Information Catalog Number MTD20D CB-34300 02/15 Description Chloride Auxiliary Transfer Device – Dimming Specifier’s Reference Project Type Model No. Comments CB-34300 dimensions MTD20D Series Dimming 3.5" MTD20D 6.0" DIMMING TRANSFER DEVICE 9.0" mounting Wall Mounting wiring TR ANS F E R S WI TCH E E ME R GE NCY P OWE R E M E R GE NCY P ANE L MTD20D N NOR M AL P OWE R NOR M AL P ANE L NE UTR AL B US F OR NOR M AL P ANE L WAL L S WI TCH VOLTAGE S E NS I NG LIGHTING LOAD UP TO 20 A NE UTR AL B US F OR E M E R GE NCY P ANE L The MTD20D can be used with a 3-wire dimming system. © 2014 Koninklijke Philips N.V. All rights reserved. Philips reserves the right to make changes in specifications and/or to discontinue any product at any time without notice or obligation and will not be liable for any consequences resulting from the use of this publication. philips.com/luminaires CB-34300 02/15 page 2 of 2 Philips Lighting North America Corporation 200 Franklin Square Drive Somerset, NJ 08873 Tel. 855-486-2216 Imported by: Philips Lighting A division of Philips Electronics Ltd. 281 Hillmount Rd, Markham, ON Canada L6C 2S3 Tel. 800-668-9008