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PR-2000
3.4
Connection of electrical supply
For optimum results use 3 phase power
3.4.1 Electrical Plug / Extension cords
3.5 Connection of pneumatic air supply
Air supply port
Copyright © Pro Spot International, Inc. 2005-2009
The PR-2000 Spot Welder requires one of the following voltage / frequency com-
binations:
208-240V 50/60 Hz
400-420V 50/60 Hz
Note: Make sure that the facility supply voltage and frequency are the same as
shown on the welder name plate (see section 4.2 "About your welder").
The power supply must have a ground connection. The supply must also be
protected as follows:
The 208-240V 3-Phase or Single-Phase require 60A breaker.
The 400V and 420V supply require a 32A slow blow fuse (Circuit
breaker 32D).
WARNING! All electrical connections must be made by a qualified
electrician. Risk for electrical shock.
1. Connect the green wire to ground.
Note:
Make sure that the supply cable is at least 6 AWG at 208V and 400 V.
The PR-2000 is rated for over voltage category III and polution degree 3.
2. If an extension cord is used with the welder, ensure that the length of the
extension cord does not exceed 10 m (30 ft) and it meets the specifications of
Item 1 above. The cord must also be grounded. Consult
an electrician for safe and proper installation of the electrical plug.
NOTE: When connecting the welder to Single-Phase input power, install Red and
White wires. Connect Green to earth ground! Leave out the black wire. Insulate
and store the black wire properly.
The PR-2000 Spot welder must be connected to a pneumatic air network.
(100 PSI to 130 PSI)
1. Connect the PR-2000 to the air supply via the threaded input port at
the rear of the welder using a standard connector.
2. If not already set, adjust the air pressure setting on the welder front panel to
60 PSI (4-5 bar) (refer to section 4.5 "Setting the pneumatic air pressure").
IMPORTANT! The air must be clean and free from oil and
moisture. Use a filter.
Figure 3.2
3 Installation
U.S.A., Canada, Japan OR
Europe, Australia
Page 9
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