Section 3 - Installation; Specifications; Duty Cycle And Overheating - Miller Spectrum 300 Manuel Du Propriétaire

3-1. Specifications

Amperes Input at
Rated Output,
Single-Phase
115 V
Rated Output
115 VAC Input:
20 A @ 89 Volts DC
(20 A Input Circuit);
25 A @ 89 Volts DC
26
(30 A Input Circuit);
(0.4*)
230 VAC Input:
25 A @ 89 Volts DC;
35% Duty Cycle In All
Cases
*While idling

3-2. Duty Cycle And Overheating

115 VAC Input Power: 35% Duty Cycle At 20 Amperes, 20 Ampere Input Circuit
115 VAC Input Power: 35% Duty Cycle At 25 Amperes, 30 Ampere Input Circuit
230 VAC Input Power: 35% Duty Cycle At 25 Amperes
3-1/2 Minutes Cutting
Overheating
SECTION 3 – INSTALLATION
50 Hz,
230 V
KVA
115 VAC
Input: 3.1
17 (0.05*)
(0.2*) 230 VAC
Input: 4.0
(0.05*)
6-1/2 Minutes Resting
0
15
Minutes
Gas Flow/
Plasma
KW Pressure
Gas
115 VAC
Input: 2.4
Air Or
(0.04*) (129 L/min)
Nitrogen
230 VAC
Only
(414 kPa)
Input: 3.1
(0.04*)
Plasma
Max
OCV
4.5 CFM
265 Volts DC
At 60 PSI
Duty Cycle is percentage of 10
minutes that unit can cut at rated
load without overheating.
If unit overheats, thermostat(s)
opens, output stops, Temperature
trouble light goes On, and cooling
fan runs. Wait fifteen minutes for
unit to cool or temperature light to
go off. Reduce amperage or duty
cycle before cutting or gouging.
Y Exceeding duty cycle can
damage unit and
warranty.
A
OR
Reduce Duty Cycle
duty1 4/95 – Ref. ST-159 463-B
OM-177 545 Page 11
IP
Rating
23
void