Input Power Connection; Primary Power - ESAB ESP-600C Manuel D'instruction

sectIon 3

3.4 Input power connection

WarnIng

3.4.1 primary power

ESP-600C is a 3-phase unit. Input power must be provided from a line (wall) disconnect switch that contains
fuses or circuit breakers in accordance to local or state regulations.
* Sizes per National Electrical Code for a 90° C (194˚ F) rated copper conductors @ 40° C (104˚ F) ambient. Not more
than three conductors in raceway or cable. Local codes should be followed if they specify sizes other than those listed
above.
** During heavy duty cutting at 600A, input current can momentarily rise above 200A and cause nuisance blowing of
200A fuses. When cutting currents are below 500A, 200A fuses are sufficient.
To estimate the input current for a wide range of output conditions, use the formula below.
Input current =
notIce
electrIc shocK can KIll!
provIDe MaxIMuM protectIon agaInst electrIcal shocK.
Before anY connectIons are MaDe InsIDe the MachIne, open
the lIne Wall DIsconnect sWItch to turn poWer off.
Recommended input conductor and line fuse sizes:
Input at rated load
volts amperes
400 206
460 179
575 143
Rated load is output of 600A at 200V
(V arc) x (I arc) x 0.688
(V line)
Dedicated power line may be necessary.
esp-600c is equipped with line voltage compensation but to avoid
impaired performance due to an overloaded circuit, a dedicated
power line may be required.
Input and ground
conductor* cu/
mm (aWg)
2
95 (4/0)
95 (3/0)
50 (1/0)
104
InstallatIon
time delay
fuse size
(amperes)
250
250**
200