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Table of Contents
Installation
Manual
DANGER is used in this manual to warn of high
voltages capable of causing shock, burns, or death.
WARNING is used in this manual to warn
of possible personal injury.
CAUTION is used in this manual to warn
of possible equipment damage.
Catalog Number Identification with Elements Explained
Typical ASCO 920 catalog no. for 3 pole, 100 amp, 208 volt 60 Hz control, with subpanel and enclosed Remote Control Switch:
920
Product
Phase Poles
2
920
– single phase
3
– three phase
ASCO POWER TECHNOLOGIES CANADA PO Box 1238, 17 Airport Road, Brantford, Ontario, Canada N3T 5T3
30 through 225 ampere sizes
3
100
Amperes
30
60
75
100
150
200
225
50 Hanover Road, Florham Park, New Jersey 07932–1591 USA
For sales or service call 1 800 800–2726 (ASCO) www.ascopower.com
Remote Control Switches
This Installation Manual is for green nameplate
ASCO 920s only. For black nameplate ASCO
920s refer to Owner's Manual 2D4920 R16.
ASCO 920 Remote Control (RC) Switches are pre–tested
and ready to use. Installation requires mounting and
connection of service cables (or bus) and control circuit
wires. An experienced licensed electrician should install
the RC Switch.
Each ASCO 920 RC Switch has a ratings / identification
label defining load types and maximum voltage ratings.
Use the switch only within the limits shown on this label.
Do not exceed the values on the rating label.
Exceeding the rating can cause personal injury
or serious equipment damage.
TABLE OF CONTENTS
Installation & Maintenance
Troubleshooting & Parts Kits
Optional Accessories
Wiring & Outline Diagrams
6
1
Control Voltage
Subpanel
3
110 – 120 V
0
– without
6
208 – 240 V
1
– with
7
265 – 277 V
9
440 – 480 V
G
550 – 600 V
X
other voltages
50 – 60 Hz
920
!
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
. . .
back of manual
C
Enclosure
Accessories
X
C
–
if
accessories
ordered
blank – none
blank – open type
381333–005 B
page
1
2
3
–
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Summary of Contents for Asco 920
- Page 1 . . . back of manual of possible equipment damage. Catalog Number Identification with Elements Explained Typical ASCO 920 catalog no. for 3 pole, 100 amp, 208 volt 60 Hz control, with subpanel and enclosed Remote Control Switch: Product Enclosure Phase Poles...
-
Page 2: Installation
Line run can be extended by use of Auxiliary Control Relays. See page 3. Table B provides the ASCO 920 coil inrush current and minimum control circuit fuse sizes. Table B – Inrush Current / Minimum Fuse... -
Page 3: Troubleshooting
(open circuit breakers). 1. Check Wiring. Make sure control stations are not calling on the ASCO 920 to open and to close at A slotted socket in the cover directly connects to the the same time. See Wiring Diagram. -
Page 4: Optional Accessories
– When the control station is located at a distance great- Fuse block has #10–32 terminal screws. The cartridge er than allowable ASCO 920 line run (Table A, page 1). fuses are suitable for ac only as listed on Wiring Diagram.
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