Miller Electric Spectrum 2050 - Manual (Page 2)

2
Rated Output
55 A at 110 VDC,
60% duty cycle,
3-Phase
55 A at 110 VDC,
50% duty cycle,
1-Phase
Amps Input at Rated Output
208 V 230 V 380 V 400 V 415 V 460 V 575 V KVA
KW
21 20 10 10 10 9 8 7.6 7.4
(7.9 @ 575 V)
36 33 — — — 16 13 7.5 7.4
Max.
Open-Circuit
Voltage
280 VDC
Plasma
Gas
Air or
Nitrogen
only
Weight
with
Torch
Net:
86 lb
(39 kg)
Ship:
93.5 lb
(42.4 kg)
Specifications
(Subject to change without notice.)
Control Panel
Mild Steel Cutting Capability
(Thickness to scale.)
Dimensions
H: 17 in (432 mm)
W: 12-1/2 in (318 mm)
D: 20-3/4 in (527 mm)
Note: For any single- or three-phase voltage from 208 V to 575 V, the Amps Input at Rated Output is the same for 50 or 60 Hertz input power.
Cutting Performance
1
2 4
6
5
3
1. Gas/Air Pressure Adjustment Control
2. Gas/Air Pressure Gauge
3. Torch Connection Receptacle
4. Output Control
5. Pilot Arc Mode Switch
6. Status and Troubleshooting Lights
To determine the maximum rated cutting
thick ness of mild steel, follow the line from
the 10 IPM (inches per minute) point on
the cutting chart. The point at which this
line intersects the cutting curve determines
the maximum recommended production
cutting thickness of the unit.
Note: The rating is based on 10 IPM because this is
the minimum speed at which the operator achieves a
smooth, steady cut when using a hand-held torch.
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
(3.2) (6.4) (9.5) (15.9) (22.2)
0.0
1.0
2.0
3.0
4.0
Cutting Speed Meters/Minute
Material Thickness Inches (mm)
Mild Steel Aluminum Stainless
Cutting Speed Inches/Minute
Cutting Speed vs. Material Thickness
0 1/8 1/4 3/8 5/8 7/8
(25.4)
1
Note: Recommended maximum piercing capacity for hand-held applications is 7/16 in (11 mm).
Maximum Sever cut of 1-1/8 in (28.6 mm) a 3 IPM
For aluminum and other metals with high thermal conductivity, cutting capabilities will be derated as much as 30%.
7/8 in (22.2 mm) at 10 IPM 1/2 in (12.7 mm) at 27 IPM
Maximum Sever cut of
1-1/8 in (28.6 mm) at 3 IPM
Rated cut capacity is based on traveling
approximately 10 inches per minute to achieve
a steady, precise cut. This is the key rating that
should meet or exceed your typical cutting
thickness requirements.
Rated Rated