Lincoln Electric IM512 INVERTEC RACKS - Manual (Page 12)

INSTALLATION
INVERTEC RACKS
- 5 -
Wiring K898-3, -4 Slave Units
The input cables to the slave unit are pre-wired from
the factory for minimal installation. Remove tie-wrap
and uncoil the cables. Feed cables through the close
nipple that connects slave unit to primary unit.
Connect cables to main fuse block in primary unit.
Secure all connections. Connect ground lead
between ground bar of primary and slave units.
The slave unit can be used as a stand alone unit
where the customer is required to supply the racks
main fusing and disconnect. If so, simply remove the
feed through cables in the slave unit and connect the
main input lines. Strain relief connectors and reducing
washers are not supplied with slave units.
Fusing
All racks are shipped without fuses which are sold
separately. All racks accommodate the following
types of fuses.
Qty./Rack Available Fuse Manufacturers
Product K898 K912 Littelfuse Bussman Gould
Power Source 12* 24* JTD LPJ AJT
Rack 3 3 JLLS JJS A6T
* Maximum quantity based on a full rack for 3 phase operation.
Fusing of Products Supported
See Operator ’ s Manual for each type of power source
for recommended fusing. A 35 amp and 50 amp fuse
is available from the factory, to meet the input require-
ments for all of the Lincoln power sources. See Fuses
in Parts List Section for replacement part numbers.
Products Supported
The products that may be placed into the racks are
listed with approximate weights.
Product Weight
Invertec ® V300-PRO (Codes 9825 & up) 64 lb / 29.0 kg
*Invertec V250S 36 lbs/17.0 kg
Pro-Cut ® 40 (25 ft. torch) 88 lbs/ 39.9 kg
Pro-Cut 40 (50 ft. torch) 96 lbs/ 43.5 kg
DC TIG Starter 20 lbs/ 9.10 kg
*Requires K934-1 Bracket Kit
Rack Main Fusing
The fuse protection for all racks must not exceed 200
amps. The following table shows the recommended
fusing for racks based on the applied input voltage
and a full rack of Invertec V300-PRO power sources.
Aluminum (4) Steel (8)
Input Voltage Operation Fusing Fusing
Single Phase 208VAC or 230VAC 200A 200A*
Three Phase 208VAC or 230VAC 150A 200A
Single Phase 460VAC or 575VAC 150A 200A
Three Phase 460VAC or 575VAC 110A 200A
*When Steel Racks are used on single phase low volt-
age (208/230V) only, the Invertec V300-PRO power
sources have reduced output capability at high duty
cycles and maximum output currents. The maximum
number of power sources that can be used at one
time for the most common welding applications is 5 -
6. Exceeding this number may cause the main input
fuses to open.
Fuses listed above are available from the factory.
See Fuses in Parts List Section.
ELECTRICAL
K898 and K912 series of racks are designed to oper-
ate any combination of single phase or three phase
power sources, on 208V, 230V, 460V or 575V opera-
tion. The main disconnect switch is the limiting factor
for maximum input power to the rack, which is 200
amps of service. K898 and K912 series of racks are
designed for the domestic market. For proper fusing
of racks and products supported see above.
LIMITATIONS
When Steel Racks (8) are used on single phase low
voltage (208/230V) only, the Invertec V300-PRO
power sources have reduced output capability at high
duty cycles and maximum output currents. The maxi-
mum number of power sources that can be used at
one time for the most common welding applications is
5 - 6. Exceeding this number may cause the main
input fuses to open.