DANGER: Explosion/Fire Hazard
Special rules apply to installations in explosive or flammable atmospheres. Do not install
the product or any auxiliary equipment in an explosive zone unless it is rated explosion-
proof or intrinsically-safe. If the product is EN/ATEX-, MSHA- or FM-approved, then see
the specific EX information in the Safety chapter before taking any further actions.
WARNING: Explosion/Fire Hazard
Do not install CSA-approved products in locations that are classified as hazardous in the
National Electric Code(TM), ANSI/NFPA 70-2005.
Grounding (earthing)
Grounding (earthing) must be done in compliance with all local codes and regulations.
DANGER: Electrical Hazard
All electrical equipment must be grounded (earthed). Test the ground (earth) lead to
verify that it is connected correctly and that the path to ground is continuous.
WARNING: Electrical Hazard
If the power cable is jerked loose, then the ground (earth) conductor must be the last
conductor to come loose from its terminal. Make sure that the ground (earth) conductor is
longer than the phase conductors at both ends of the cable.
WARNING: Electrical Hazard
Risk of electrical shock or burn. You must connect an additional ground- (earth-) fault
protection device to the grounded (earthed) connectors if persons are likely to come into
contact with liquids that are also in contact with the pump or pumped liquid.
Time to zero energy state
This product contains high voltage capacitors that take time to discharge after the power
supply is disconnected. Voltage is present at the terminals and in the motor control unit
for up to one minute after the disconnection of the power supply.
The STOP function does not remove the voltages.
6.2 Requirements
General requirements
• To connect the unit to the public mains, the supply authority may need to be informed
first. For more information, check the local regulations and codes. When the unit is
connected to the public power supply, it may cause flickering of incandescent lamps
when started.
• The mains voltage and frequency must be in accordance with the specifications on the
data plate.
• Fuses or circuit breakers must be installed between the power supply and the unit.
• All fuses and circuit breakers must have the correct rating, and comply with the local
regulations.
• For FM-approved pumps, a leakage sensor must be connected and in use to meet the
approval requirements.
NOTICE:
Do not use Variable Frequency Drive (VFD) with this unit.
NOTICE:
Do not use any type of soft start equipment with this unit.
6 Electrical Installation
Concertor
™
6020 Installation, Operation, and Maintenance Manual 25
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