Matco Tools MA48, Operator'S Manual

4 

3.3 Input Power Connections 

The PCA48 PFC plasma cutting machine features electronic switching power supply allowing it to be 

connected to any 110-240VAC, 1-Phase LINE power outlet. 

208-240VAC LINE CONNECTION: 

Machine is provided with NEMA 6-50P LINE Service cord to be 

plugged into any 6-50R outlet with 208-240VAC, single-phase power and 

50-amp circuit breaker. 

110-120VAC LINE CONNECTION: 

Machine is provided with NEMA 6-50R to NEMA 5-15P  “Jumper” 

Service cord. This allows machine to be plugged into any 5-15R standard outlet with 110-120VAC, 

single-phase power and 

20-amp circuit breaker.

In the event NEMA6-50R or 5-15R outlets, with rated LINE circuit breaker amperage are not 

available, they should be installed by a licensed electrician in accordance to all national & local 

codes. 

In the event LINE power supply is over voltage (>245) or under voltage (<195), protection circuit inside 

the machine will illuminate alarm light and current will be cut off.   

If the power supply voltage continually goes beyond the safe work voltage range, it will shorten the life 

of the machine. If this occurs, the below measures should be taken:   



Change the LINE power supply. Such as, connect the welder to a dedicated circuit. 



Shut off other machines using LINE power supply at the same time as welding. 

WARNING: Any modification or removal of factory installed service power cords will VOID 

MACHINE WARRANTY! 

3.3 Input Gas Connections 

The  PCA48 PFC plasma cutter is supplied with a compressed air filter/dryer and adjustable air flow 

knob. The air hose from the compressor should be connected directly to this air regulator

.

  Connecting 

additional regulator on line can reduce air flow to the cutting torch and damage the system. 

The pressure regulator should be set 

~70 psi (4.8 bar)

 and flow rate should be 210 SCFH (100 lpm) 

minimum with ¼” (6mm) minimum hose diameter at 1/4G regulator input.     

WARNING: Maximum Line air pressure should not exceed 125 PSI (8.6 bar)