
M-2040 Series
© 2015 Magnaflux
Page 3 Magnaflux-SRVC-IG010
Issued: Apr 2015
Rev. 2
Duty Cycle:
At full output: 30 seconds “ON” – 6 minutes “OFF”
At 1000 amps: 30 seconds “ON” – 3 minutes “OFF”
The equipment can be fused based on less than the maximum amperage draw due to the duty
cycle. Refer to NEC Code Section 630.31 Ampacity of Supply Conductors and Table 630.31
(A) (2) Duty Cycle Multiplication Factors for Resistance Welders (NPFA National Electric Code
2011). Some areas refer to 2 phase instead of 1 phase. The incoming power goes directly to
an isolation transformer so the unit will operate identically on 1 or 2 phase power.
Electrical Input:
Input Volts AC Phase
Full Load
(Amps)
Recommended
Line Fuse (Amps)
Recommended
Wire Size (AWG)
208 1350 250 2/0
230 1300 250 #0
380 1175 125 #3
415 1160 125 #4
460 1150 125 #4
575 1120 100 #6
Note: To obtain full rated output the following conditions must be met:
1. Thirty (30’) feet of 4/0 cable (in a single loop) attached to the Output Lugs on the front of
the unit.
2. A power source of the proper voltage, frequency and phase (as designated on the Mag-
naflux Data Plate) capable of providing current per the nameplate for the power pack. It is
highly recommended that an electrical fused disconnect be installed either on the wall be-
hind the unit or on a pedestal near the unit.