- Wexxar/BEL manufactures both 3-Phase and Single Phase machines
- There are many configurations of electrical wires available for power cables, and the customer is likely to require a qualified electrician to detach the Single Phase plug from the machine’s power cable and attach the applicable wires in the cable to the relevant connections in the corresponding 3-Phase plug
- Single Phase machines can be installed in a 3-Phase environment simply by connecting only 2 of the wires in the cable to the prongs of a 3-Phase electrical plug
- Wexxar WS-class sealers have 3-Phase motors which require 3-Phase power at a higher rating than the motors; For example, a machine with a 115 Volt motor requires at least 120 Volt power
- Wexxar WF-30H machines require 3-Phase power, but balance the phases internally, selecting 2 phases each for the conveyors, Hot Melt unit, and Single Phase motor; The wiring and load-sharing configuration for WF-30H machines is shown on the machine’s electrical schematic
- In a circumstance where there are 3 phases available to choose from to power a Single Phase machine, a qualified electrician at the factory where the machine is to be installed must choose 2 out of the 3 phases to power the machine; the choice of phases depends on the existing load-sharing configuration at the point of installation
- It is the responsibility of a qualified electrician designated by the customer to “balance” Single Phase electrical loads required by Wexxar machines between phases in a 3-Phase environment, analogous to the way that electrical loads in a household are balanced between different circuits to prevent blown fuses
- If the electrician chooses inappropriate phases to power the machine, then the power factor of the customer’s electrical system will drop, with tangible effects on optimal power usage and potential financial penalties from the electrical utility for wasted power
- There are anomalies in power ratings such that a 240V power source can be either 3-Phase (4 wire) or Single Phase (3 wire), so the specifications of the electrical system configuration at the installation site must be clear at the time of order
- The attached table demonstrates various common power configurations and the relation between the power rating of a machine’s motor and the actual supply voltage
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