Brochures and Data Sheets

Performance Features
• 3 standard models to choose from
• Feature ASCO 918 RC Contactors. (electrically operated,
mechanically held, designed for lighting applications)
• Quieter operation (no AC hum)
• Longer life expectancy for contactor
• Fully rated for all types of lighting loads, including metal
halide, mercury vapor, quartz halogen, tungsten, and uo-
rescent
Construction Features
• All controls, except for photocell, in common Type 1 enclo-
sure (Type 12, 3R, 4, and 4X enclosures are available)
• Available in 6 or 12 pole design
• ASCO 918 visual position indicators show open/closed
position of each main contact
• ASCO 918 line, load, and control terminals accept no. 18 to
no. 10 AWG wire
• Large dial, multifunction 7-day timer with reserve power
feature or digital time clock with battery backup (Models
641A, 641 S)
• Clamp-type, self-rising terminal plates for solderless con-
nection with the screws for fast termination
Electrical Features
• Available 120 or 277 V, 60 Hz control
• All control wiring stranded #14 AWG
• UL 1015 Red wiring
• Terminal block for all incoming wiring
• Fused power circuit
• UL Listed to UL508 Industrial Controls
• Rated 20 amps to 600 VAC (30 amps general purpose)
• Fully rated for all types of lighting loads
• High withstand current ratings
Distinguishing Features
Standard Configurations
Standard panels feature the
ASCO 918 Lighting Contac-
tor that’s based on ASCO’s
electrically operated, me-
chanically held solenoid
operator that also is the heart
of all ASCO power transfer
switches.
The solenoid does not rely
on magnetic latches or
impressed current to main-
tain contacts in the open or
closed position. The contac-
tor offers quieter operation,
longer life expectancy and
eliminates the continuous
power drain associated with
electrically held solenoid
designs.
This contactor is specically
designed for metal halide,
mercury vapor, quartz halo-
gen, tungsten and uores-
cent lighting systems.
Custom Configurations
Custom congurations for
comprehensive lighting con-
trol requirements can include
up to 10 lighting contactors
in one enclosure, in addition
to related controls and acces-
sories.
Besides the 918 Lighting
Contactor, the panel also
is available with the 920
Lighting Contactor. Panels
congured with 920 Light-
ing Contactors become the
ASCO 642 Lighting Contactor
Panel.
Controls and accessories can
include relays, building man-
agement interfaces, time
clocks, photocell interfaces,
pilot lights, control switches,
power fusing, and other func-
tionalities.
The lighting control
panel is ideally suited for
ballast lighting, tungsten
and general-purpose loads.
The ASCO 641A Lighting
Contactor Panel satises
requirements of large-area
applications. 641S meets
requirements for security ap-
plications and 641 AS meets
requirements for both.
Applications include
large areas, stadium park-
ing garages and facilities
using TOD (Time of Day)
photo-sensor control for
automatic on-off operation.
Other applications are signs,
interior and exterior build-
ing lighting, interior safety
lighting, recreational lighting
and applications suitable for
manual on-off operation.
The 641 Lighting Control
Panel is available in standard
and highly customized con-
gurations. Three standard
congurations offer quicker
delivery, while customized
congurations offer the ex-
ibility to tailor performance
to site-specic requirements.
A Range of Lighting
Control Applications
The ASCO 918 Remote
Control (RC) Lighting Contac-
tor is the heart of the ASCO
641 Lighting Control Panel.
It provides reliable and
convenient lighting control
in a variety of applications.
It is rated at 30 amperes to
600 volts AC and is listed to
UL 508.
Solid-state control mod-
ules enable energy manage-
ment systems, microproces-
sors, photoelectric cells,
timers and similar control
devices to manage the light-
ing contactor.
The 918 Lighting Contactor Is the Heart of the 641 Lighting Control Panel
ASCO 918 Product Description Offering
918 6 20 3 1 0
Product Open Frame
4
6
8
12
# of Poles Amps
918
20
Voltage Sub-Panel
3 = 110-120V
6 = 208-240V
7 = 265-277V
1 0
Notes : 1. 4 pole units only available on Standard 641 units not Custom.
2. Subpanels are standard with all 641 product.
3. All 641 units will be open frame 918 individual units.