Safety Requirements for Arc Welding Equipment part 1: EN 60974-1: 1990
Arc Welding Equipment Part 1: Welding Power Sources: IEC 974-1
(April 1995 − Draft revision)
Degrees of Protection provided by Enclosures (IP code): IEC 529: 1989
Insulation coordination for equipment within low-voltage systems:
Part 1: Principles, requirements and tests: IEC 664-1: 1992
Electromagnetic compatibility (EMC) Product standard for arc welding equipment:
EN50199: August 1995
European Contact:Mr. Luigi Vacchini, Managing Director
MILLER Europe S.P.A.
Via Privata Iseo
20098 San Giuliano
Milanese, Italy
Telephone:39(02)98290-1
Fax:39(02)98281-552
dec_con1 10/95
SECTION 1 − DEFINITIONS
1-1.Warning Label Definitions
11.11.2
2
33.13.23.3
44.1
2.1
+
2.2
2.3
+
+
1.3
Warning! Watch Out! There are
possible hazards as shown by the
symbols.
1Electric shock from welding
electrode or wiring can kill.
1.1 Wear dry insulating gloves.
Do not touch electrode with
bare hand. Do not wear wet or
damaged gloves.
1.2 Protect yourself from electric
shock by insulating yourself
from work and ground.
1.3 Disconnect input plug or
power before working on
machine.
2Breathing welding fumes can
be hazardous to your health.
2.1 Keep your head out of the
fumes.
2.2 Use forced ventilation or local
exhaust to remove the fumes.
2.3 Use ventilating fan to remove
fumes.
3Welding sparks can cause
explosion or fire.
3.1 Keep flammables away from
welding. Do not weld near
flammables.
3.2 Welding sparks can cause
fires. Have a fire extinguisher
nearby, and have a
watchperson ready to use it.
3.3 Do not weld on drums or any
closed containers.
4Arc rays can burn eyes and
injure skin.
4.1 Wear hat and safety glasses.
Use ear protection and button
shirt collar. Use welding
helmet with correct shade of
filter. Wear complete body
protection.
5Become trained and read the
instructions before working on
the machine or welding.
6Do not remove or paint over
(cover) the label.
56
+
S-176 254-A
1/96
OM-223 Page 9
Warning! Watch Out! There are
possible hazards as shown by the
symbols.
Electric shock from wiring can kill.
Disconnect input plug or power
before working on machine.
Read the Owner’s Manual before
working on this machine.
1Consult rating label for input
power requirements, and
check power available at the
job site − they must match.
2Read Owner’s Manual and
inside labels for connection
points and procedures.
3Move jumper links as shown
on inside label to match
?
1
2
V
3
voltage at job site.
4Having a loop of extra length,
connect grounding conductor
first.
?
V
?
A
5
5Connect line input conductors
as shown on inside label −
double-check all connections,
jumper link positions, and
input voltage before applying
3
power.
4
123
1
1
56
234
S-179 290
1/96
1Warning! Watch Out! There
are possible hazards as
shown by the symbols.
2Electric shock from wiring and
exposed weld terminals can
kill.
3Close door before turning on
unit.
S-179 563
1/96
1Warning! Watch Out! There
are possible hazards as
shown by the symbols.
2Electric shock from welding
electrode or wiring can kill.
3Sparks from arcing electrode
can cause explosion or fire −
disconnect cable for process
not in use.
4Read Owner’s Manual for
connection procedures.
5Electric shock from wiring can
kill.
6Disconnect input power
before working on unit or
making terminal strip
connections.
OM-223 Page 10
Nameplate D-179 389
1-2.Manufacturer’s Rating Labels For CE Products
Match label to one on
unit. See Section 2-1.
S-174 346 / S-174 347 / S-174 348
OM-223 Page 11
1-3.Symbols And Definitions
NOTE
A
V
U
0
I
1
IP
Some symbols are found only on CE products.
1
Voltage Control/
Panel
Positive Low
Inductance Weld
Output Terminal
Primary Voltage
Rated Welding
Current
Alternating
Current
U
X
S
2
1
Amperes
OutputCircuit BreakerRemoteOn
Positive High
Inductance Weld
Output Terminal
VoltsOffWire Feed
Rated No Load
Voltage (Average)
Primary Current
Degree Of
Protection
U
I
2
Gas Metal Arc
Welding (GMAW)
Negative Weld
Output Terminal
Conventional
Load Voltage
Duty Cycle
KVADirect Current
Temperature
Input
Protective Earth
(Ground)
Line Connection
Three-Phase
Transformer
Rectifier
Percent
OM-223 Page 12
SECTION 2 − INSTALLATION
Di
B
2-1.Selecting A Location
Movement
Location And Airflow
3
4
1Lifting Eye
2Lifting Forks
Use lifting eye or lifting forks to
move unit.
If using lifting forks, extend forks
1
OR
2
6
18 in
(460 mm)
beyond opposite side of unit.
3Rating Label (Non CE Models
Only)
Use rating label to determine input
power needs. Label located under
front access door.
4Plate Label (CE Models Only)
Label located under front access
door.
5Rating Label (CE Models
Only)
Use rating label to determine input
power needs. Label located on rear
access door (see Section 1-2).
6Line Disconnect Device
Locate unit near correct input pow-
er supply.
Y Special installation may be
required where gasoline or
volatile liquids are present −
see NEC Article 511 or CEC
Section 20.
18 in
(460 mm)
2-2.Dimensions And Weights
D
A
C
E
4 Holes
Ref. ST-153 556-A
5
mensions
Height27-1/4 in (692 mm)
Width22-1/4 in (565 mm)
Depth*35-3/4 in (908 mm)
A**35 in (889 mm)
B***1-1/4 in (32 mm)
C21 in (533 mm)
D1-3/16 in (30 mm)
E7/16 in (11 mm) Dia
*300 Amp Model = 28-1/4 in (718 mm)
**300 Amp Model = 25-7/8 in (657 mm)
***300 Amp Model = 3/4 in (19 mm)
Weight
300 Amp
450 Amp
650 Amp
Net: 323 lb (147 kg)
Ship: 340 lb (154 kg)
Net: 384 lb (174 kg)
Ship: 401 lb (182 kg)
Net: 472 lb (214 kg)
Ship: 489 lb (222 kg)
OM-223 Page 13
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