The MAG-150 is a three-wire grounded device (hot-neutral-ground) rated for 125 V maximum.
THE MAG-150 SHOULD BE OPERATED FROM A SINGLE-PHASE 60Hz, AC POWER SUPPLY. THE INPUT VOLTAGE SHOULD MATCH THE ELECTRICAL INPUT VOLTAGES SHOWN ON THE INPUT DATA LABEL ON THE UNIT NAMEPLATE. SEE SECTION 2.1 FOR EXAMPLE
DO NOT ATTEMPT TO CUT OFF THE GROUND PIN TO FIT IT TO A 1–15R OUTLET OR EXTENSION CORD. BY DOING SO, THE LIVE/NEUTRAL POLARITY IS LOST AND WILL INCREASE THE RISK OF SHOCK.
The time-delay fuses or circuit breaker of an individual branch circuit may trip when welding with this product due to the amperage rating of the time-delay fuses or circuit breaker.
The recommended time-delay fuses or circuit breaker size is 30 amperes. Fuse/circuit breaker size is based on not more than 200 percent of the rated input amperage of the welding power source (Based on Article 630, National Electrical Code).
An individual branch circuit capable of carrying 30 amperes and time-delay fuses or circuit breaker protection is recommended for this application. Each unit incorporates an INRUSH circuit. When the MAIN CIRCUIT SWITCH is turned on, the inrush circuit provides pre-charging for the input capacitors. A relay in the Power Control Assembly (PCA) will turn on after the input capacitors have charged to operating voltage (after approximately 5 seconds)
Damage to the PCA could occur if 133 VAC or higher is applied to the Primary Power Cable.