Wesco W121E, Manual And Spare Parts List

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Electrical Installation
Important
Electrical ratings are subject to changes. Refer to serial plate decal for electrical ratings information
specific to your machine.
WARNING
Hazardous Voltage. Can cause shock, burn or cause
death. Allow machine power to remain off for two minutes
prior to working in and around AC inverter drive.
WARNING
Hazardous Voltage. Can cause shock, burn or death.
Verify that a ground wire from a proven earth ground is
connected to the lug near the input power block on this
machine.
The AC inverter drive requires a clean power supply free from voltage spikes and surges. If a
transformer or generator is connected to the building's power supply, always install line reactors
before the terminal block connections to the machine. A voltage monitor should be used to check
incoming power. The customer’s local power company may provide such a monitor.
If input voltage measures above 240V for a 220V drive or above 480V for a 400V drive, ask the
power company to lower the voltage. As an alternative, a step-down transformer kit is available
from the distributor.
The AC drive provides overload protection for the drive motor. However, a separate single or
three-phase circuit breaker must be installed for complete electrical overload protection. This
prevents damage to the motor by disconnecting all legs if one should be lost accidentally. Check
the data plate on the back of the washer-extractor or consult Table 2 through 7 for circuit breaker
requirements.
IMPORTANT: Do NOT use fuses in place of a circuit breaker.
For installation in the United States or Canada, branch circuit protection must be provided
according to National and Local Codes. The branch circuit breaker must be of the inverse time or
instantaneous trip type at the values given in the technical specifications for each machine.
Use a circuit breaker of the minimal type of 10kA interrupt current.
CAUTION
Do not use a voltage or phase converter on any variable speed machine.
The washer-extractor should be connected to an individual branch circuit not shared with lighting or
another electrical device.
- In accordance with legal regulations, every machine must be protected with an earth leakage
circuit breaker of 30mA.
- The earth leakage circuit breaker, which one uses, must be of the type SI.
- For countries outside the European Community, the usual safety instructions must be observed.