Miller | Spectrum 300 | Spectrum® 375 - Terrace Supply

Spectrum® 375 - Terrace Supply
Spectrum 375
Issued Nov. 2012 • Index No. PC/9.1
Air Plasma
Industrial Applications
Cutting Capability
Required Input Pressure/Flow
Light Construction
Body Shops
HVAC Ductwork
Air Plasma Cutting
Rated: 3/8 in. (9.5 mm)
Sever: 5/8 in. (15.9 mm)
5.0 SCFM (142 L/min.) at
90 PSI minimum (621 kPa)
120 PSI maximum (828 kPa)
Rated Output
15 – 27 A at 90 VDC,
35% Duty Cycle
With torch: 55 lb. (25 kg)
The Power of Blue .
Comes Complete With:
XT30C hand-held torch with
20-ft. (6.1 m) cable
Heavy-duty work clamp with
20-ft. (6.1 m) cable
10-ft. (3 m) power cord with
115 VAC, 20 A plug
Built-in gas/air filter and regulator
Extra consumables (2 electrodes,
2 tips and 1 air fitting)
XT30C torch with ergonomic handle to
help prevent operator fatigue while the
flexible cable makes maneuvering easier.
Dual input voltage located in back of
unit allows either 115 or 230 VAC input
power and provides patented protection
in case of incorrect switch position.
Unit provides full cutting capacity when
powered by most engine-driven welders
with 240 VAC auxiliary receptacles.
Consumables storage compartment
provides convenient access to
consumables and parts.
Starts without high-frequency so it will
not interfere with controls or computers.
Pressure gauge and pressure knob
for manual adjustment of pressure
to the torch.
Electronic pilot arc controller
automatically controls the pilot circuit
to provide expanded metal cutting
capability without having to re-trigger
the torch, increasing productivity and
extending tip life.
LED indicators for pressure, power,
cup and temperature allow faster
troubleshooting, eliminating
unnecessary downtime.
LVC™ line voltage compensation
provides peak performance power under
variable conditions (power fluctuations
up to ±15 percent) for steady cuts and
cleaner ending cuts.
Heavy-duty clamp included.
Postflow cooling circuit
extends the life of the
consumables and torch by
cooling them with postflow air
after the trigger is released.
Power factor correction expands
operator’s work area via extension
cords while minimizing nuisance trips
caused by voltage drops.
Can be powered by any Miller engine
drive with generator power (e.g. Bobcat™)
or equivalent competitive equipment. See
page 3 for engine drive compatibility and
recommended settings.
Gas/air filter/regulator inside the
power source provides added protection
during transportation. Standard air
connection on back panel for easy gas
or air hookup.
Power source is warranted for 3 years, parts and labor.
XT torch is warranted for 1 year, parts and labor.
Miller Electric Mfg. Co.
Equipment Sales US and Canada
An Illinois Tool Works Company
1635 West Spencer Street
Appleton, WI 54914 USA
Phone: 866-931-9730
FAX: 800-637-2315
International Phone: 920-735-4554
International FAX: 920-735-4125
Rated Output
15–27 A at 90 VDC,
35% duty cycle
(Subject to change without notice.)
Max. OpenCircuit Voltage
Amps Input at Rated Output, 60 Hz, 1-Phase
115 V
230 V
Weight with Torch
288 VDC
Air or
H: 13.5 in. (343 mm)
W: 8.5 in. (216 mm)
D: 16 in. (406 mm)
Net: 55 lb. (25 kg)
Ship: 61.5 lb. (27.9 kg)
*Recommended 30 A branch circuit for maximum performance. Performance on 20 A branch service may be limited due to breaker/line fuse.
Reducing unit output amperage will minimize nuisance breaker/line fuse tripping.
Certified by Canadian Standards Association to both the Canadian and U.S. Standards.
Mild Steel Cutting Capability (Thickness to scale.)
Maximum Cutting Speeds at 27 Amps Output
1/4 in. (6.4 mm) at 27 IPM
Approximate Travel Speeds*
3/16 in. (4.8 mm)
47 IPM (1194 mm/min.)
1/4 in. (6.4 mm)
25 IPM (635 mm/min.)
3/8 in. (9.5 mm) at 14 IPM
3/8 in. (9.5 mm)
15 IPM (381 mm/min.)
1/2 in. (12.7 mm)
6 IPM (152 mm/min.)
Note: Recommended maximum piercing capacity for hand-held applications is 1/8 inch (3.2 mm).
Maximum sever cut of 5/8 inch (15.9 mm) at 6 IPM.
For aluminum and other metals with high thermal conductivity, cutting capabilities will be derated as much as 30%.
Rated cut capacity is based on traveling approximately 15 inches per minute to
achieve a steady, precise cut. This is the key rating that should meet or exceed
your typical cutting thickness requirements.
Maximum Cutting Speeds at 20 Amps Output
Approximate Travel Speeds*
16 ga. (1.5 mm)
162 IPM (4115 mm/min.)
3/16 in. (4.8 mm)
26 IPM (660 mm/min.)
1/4 in. (6.4 mm)
18 IPM (457 mm/min.)
3/8 in. (9.5 mm)
7 IPM (178 mm/min.)
* Travel speeds are approximately 80% of maximum.
Control Panel
Status and Troubleshooting Lights
Power Switch
Output Control
Gas/Air Pressure Gauge
Gas/Air Pressure Adjustment Control
Engine Drive Compatibility
Generator Power
Steel Quality Cut (Approximate)
Spectrum Output Amp Setting
Wildcat® 200
6.5 KW
3/8 in.
27 A, 240 V, full KVA plug
Bobcat , Trailblazer
11 kW
3/8 in.
27 A, 240 V, full KVA plug
Big Blue® 300 Pro, Big Blue® 350 PipePro®
12 kW
3/8 in.
27 A, 240 V, full KVA plug
20 kW (optional)
3/8 in.
27 A, 240 V, full KVA plug
Big Blue 500 CC/CV
Genuine Miller Accessories
No. 30B Economy
Cart with Cord Wrap
#300 511
This economical
running gear provides
mobility, includes a
cord wrap and extra
storage space, and is
angled for easy front
panel access.
Protective Cover
#195 144
odor-free, waterproof
cover protects your
machine’s finish.
Adapter Cord, Full KVA #300 517 Field
NEMA 14-50P to NEMA 6-50R. Adapts
engine drive 120/240 V plug to Spectrum®
240 V plug.
RTI Filter and Bracket
#300 491
Filter/dryer with automatic
drain removes water, dirt and
oil as small as one micron
with 99.9 percent efficiency.
Can be mounted on plasma
cutter or on wall. Install as
close as possible to point of
air consumption.
Miller Service Parts Accessories
The following accessories must be
ordered from Miller Service Parts.
RTI Replacement Filter Element #212 771
Replacement filter for #300 491.
Consumable Kit
#253 520
kit includes
5 electrodes,
5 tips, 1 swirl
ring, 1 retaining
cup, 1 o-ring and silicone grease.
Plasma Standoff
Roller Guide
#253 054
Helps maintain
standoff distance
to maximize
cutting performance and improve tip life.
Plasma Circle-Cutting Guide #253 055
Cut straight lines or circles up to 12-inch
diameter with ease.
Suction/Magnetic Pivot Base #195 979
Add this to your cutting guide for convenient attachment to all flat surfaces. The
extended arm accommodates holes up to
30-inch diameter.
Full KVA Plug Kit #119 172 Field
240 VAC, 50-amp plug (NEMA 14-50P) to
fit full KVA receptacle on Bobcat.™
115 VAC, 20 A Receptacle #237 722 Field
Receptacle matches 20-amp plug supplied
with Spectrum 375 (#907 532/903 891).
115 VAC, 15 A Plug Kit #073 690 Field
Allows connection to 15-amp household
In-Line Air Filter Kit
#228 926
Mounts to the back of the
Spectrum® 375 X-TREME™,
375, 625 X-TREME™, 875
and 875 Auto-Line™. Includes
male and female 1/4-inch NPT
quick disconnect fittings and hose for easy
on/off connection. The replaceable filter
element filters to .85 microns for removal
of 99.9 percent of water, dirt and oil.
In-Line Air Filter Replacement Element
#228 928
Replacement filter for #228 926.
MIG Gloves
#249 175 Medium
#249 176 Large
#249 177 X-Large
Breathable pigsplit back with
genuine American deerskin
palm for ultimate comfort. Moisture-wicking
fleece lining provides additional protection.
Multi-Purpose Gloves
#249 184 Medium
#249 185 Large
#249 186 X-Large
Breathable pigsplit back with
top grain cowhide palm for
excellent heat protection. Moisture-wicking
mesh lining and padded palm.
XT Torch and Consumables
XT30C Hand-Held 20-foot (6.1 m) Torch #255 685
#249 969
Swirl Ring
#249 931
Strain relief is
durable and
corrosion resistant
and exclusive
flexible cable
has improved
bend radius.
#249 926
#249 927
Retaining Cup
#249 932
Drag Shield
#249 930
#249 933
Large laser-etched
30 A tip for easy reading.
Robust tip front end design optimizes
arc performance and tip life.
Trigger guard protects
against inadvertent arc initiation.
New retaining cup design provides
increased cutting visibility and quick
turn for easy consumable change.
80-degree handle provides natural arm
and elbow positioning while cutting.
Industry’s only true drag shield
protects tip for long life and easy
template cutting.
Ergonomic design with unique thumb guide and
finger grip contours.
No-slip grip for easy control and torch dexterity.
Ordering Information
Power Source
Stock No.
Spectrum® 375
#907 532
115/230 VAC, 60 Hz, with 20-ft. (6.1 m) XT30C hand-held torch
Replacement Torch and Consumables
XT30C Hand-Held Torch
#255 685
20 ft. (6.1 m). Order from Miller Service Parts
See above. Order from Miller Service Parts
No. 30B Economy Cart with Cord Wrap
Protective Cover
Adapter Cord, Full KVA
RTI Filter and Bracket
RTI Filter Replacement Element
XT30C Consumable Kit
Silicone Grease
Plasma Standoff Roller Guide
Plasma Circle-Cutting Guide
Suction/Magnetic Pivot Base
Full KVA Plug Kit
115 VAC, 20 A Receptacle
115 VAC, 15 A Plug Kit
In-Line Air Filter Kit
In-Line Air Filter Replacement Element
MIG/Multipurpose Gloves
#300 511
#195 144
#300 517
#300 491
#212 771
#253 520
#252 951
#253 054
#253 055
#195 979
#119 172
#237 722
#073 690
#228 926
#228 928
Adapts engine drive 120/240 V plug to Spectrum® 240 V plug
For RTI filter #300 491. Order from Miller Service Parts
Includes 5 electrodes, 5 tips, 1 swirl ring, 1 retaining cup, 1 o-ring
and silicone grease. Order from Miller Service Parts
Order from Miller Service Parts
Order from Miller Service Parts
Order from Miller Service Parts
Order from Miller Service Parts
Field. Order from Miller Service Parts
Field. Order from Miller Service Parts
Field. Order from Miller Service Parts
Order from Miller Service Parts
Order from Miller Service Parts
See page 3. Order from Miller Service Parts
Total Quoted Price:
Distributed by:
Litho in USA
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