Emerson ASCO 911 Brochures and Data Sheets
ASCO 911 Remote Control Switch
Remote Control Switch Provides Flexibility And Increases Reliability
The ASCO 911 Remote Control Switch is a proven,
time-tested solution for remotely controlling feeder
disconnect applications, such as bulk load control
and energy management.
Using an ASCO 911 switch reduces wear on the overcurrent protective devices, provides more flexibility
and increases system reliability.
The switch is available for single phase or 3 phase
applications in sizes from 100 through 1200 amps.
ASCO 911 Remote Control Switch
Features and Benefits
• Rated for total system loads and can be used on any com bination of motor, ballast, and tungsten lighting and
general use loads, without de-rating
• Optional 2 or 3 poles with a solid-neutral
• Available in single-throw mechanically held remote
control switch. They are available for single or 3 phase
applications in sizes from 100-1200 amperes
• Specied for all load classes up to 600 VAC to its full
rating open or closed frame
• Interrupting capacity 600 percent of rated current at
480 VAC 0.4 to 0.5 power factor
• Thermal capacity 20 times full load rating
• Power driven contacts lock in place, no continuous
control power consumption
The ASCO 911 Remote Control Switch
ASCO 911 Withstand Current Rating
Switch Rating
(Amps)
100-225A
260-400A
600-1000A
1200A
When Used with Circuit Breakers
WCR with Specific
Circuit Breaker
22,000
42,000
65,000
85,000
WCR with Any
Circuit Breaker
22,000
35,000
50,000
65,000
• Mountable in any position, rugged construction
The 911 Remote Control Switch Ordering Information
ASCO 911 Remote Control Switch Ordering Information
911 Remote Control Switch Catalog
Prefix Product Neutral Phase Poles Amps Voltage Code Accessories Enclosures
H 911 A 3 600 C 1 X C
100
O = 100-225A
E = 260-400A
H = 600-1200A
911
A-
Solid
Neutral
02
03
150
200
225
260
400
600
800
1000
A = 115V*
B = 120V*
C = 208V
D = 220V
F = 240V
G = 277V
L = 440V
N = 480V
1 = CP
Code
X - If Acc.
are ordered
C = Type 1
F = Type 3R
L = Type 12
H = Type 4X
1200
Note: * Voltage Codes A&B only available for 100-400A.
Transfer Switch Terminals for Power Conductors
RC Switch Rating
(Amps
)
100
150
200
225
260
400
600
800
1000
1200
Maximum Number
of Conductors per
Terminal
ONE
ONE
TWO
ONE
TWO
FOUR
Range of Conductor
Sizes
AL - CU AWG
#14 to 1/0
#6 to 350MCM
# 1/0 to 250MCM
#4 to 600MCM
# 1 to 600MCM
Recommended
Tightening
Torque
35-50 In-LB
375 In-LB
600 In-LB
375 In-LB
ASCO 911 Optional
Accessories:
• 47 – 2 –Wire control
auxiliary control relay
• 48 – 3 – Wire control
auxiliary control relay
• 49 – Form 3-control
auxiliary control relay
• 14A/B – Auxiliary
contacts (1) NO, (1)
NC supplied as pair.
Rated 20A at 480V
• 52A – Control Line
fuse for grounded
control voltage
• 52B – Control line fuse
for ungrounded
control voltage
(up to 300V)
• 52C – Control line
fuse for ungrounded
control voltage
(310 to 600V)
• 53B – Hoa 3-Position
selector switch with
center off position
• 9A/B – (2) indicating
lights open/closed
ASCO 911 Dimensions
Switch Rating
(Amps)
100
150-225
260-400
600-1000
1200
Open Frame
7.93W, 4.12D, 14.25H
7.93W, 4.12D, 14.25H
12W, 6.87D, 18.5H
26.93W, 12.69D, 30.94H
26.93W, 12.69D, 30.94H
Dimensions in Inches
Compare, Then Prefer, ASCO
Publication 3236
Type 1 Enclosure Type 3R/12 Enclosure
13W, 4.5D, 18.25H
13W, 4.5D, 24H
18W, 13D, 48H
34W, 20D, 72H
34W, 20D, 87H
20W, 6D, 22H
20W, 6D, 22H
18W, 13D, 48H
34W, 20D, 75H
34W, 20D, 87H
Compare remote control switch
products, then prefer the ASCO 911
Remote Control Switch for exibility,
reliability and performance.
800-800-ASCO www.ascopower.com 50 Hanover Rd, Florham Park, New Jersey 07932 U.S.A.
February, 2011
©
ASCO 911 Shipping Weights
Switch Rating
(Amps)
100
150-225
260-400
600-800
1000
1200
. .
Approximate Shipping Weights in LBS.
Open Frame
8
9
21
119
131
131
Type 1 Enclosure Type 3R Enclosure
25
30
108
300
300
450
50
62
122
450
450
450
For more information on the ASCO 911
Remote Control Switch:
• Call 800-800-ASCO (2726)
• Email customercare@asco.com
• Visit ascopower.com
• Visit ascoapu.com
Printed in the U.S.A.
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