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