Electrical Connection; Lubricating The Motor - Grundfos KP Instrucciones De Instalación Y Funcionamiento

4.5 Electrical connection

DANGER
Electric shock
Death or serious personal injury
- The electrical installation must be carried out by a
qualified electrician in accordance with local
regulations and the manuals provided with the
electrical accessories.
DANGER
Electric shock
Death or serious personal injury
- Before starting any work on the product, make
sure that the power supply has been switched off
and that it cannot be accidentally switched on.
4.5.1 Motors
The motor control circuit must include the following components
in order to comply with the National Electrical Code:
Motor disconnecting device
• Install a motor disconnecting device that is capable of
disconnecting both the controller (motor-protective circuit
breaker) and the motor from their source of power.
• Locate the disconnecting device in such a way that the
controller (motor-protective circuit breaker) can be seen from
the disconnecting device. In all cases, the distance from the
disconnecting device to the controller must be less than 50 ft
(15.24 m).
In most installations, the disconnecting device will be a circuit
breaker or fusible disconnect switch.
Motor short circuit and ground fault circuit interrupter
A short circuit and ground fault circuit interrupter is usually a
circuit breaker or fusible disconnect switch.
• Select the circuit breaker or fuse in accordance with section
430-52 and table 430-152 of the National Electrical Code.
Motor controller with overcurrent protection (magnetic
starter)
• Install these components in accordance with applicable local
and state electrical codes in addition to the National Electrical
Code.
DANGER
Explosive environment
Death or serious personal injury
- Observe the rules and regulations generally or
specifically imposed by the relevant responsible
authorities or trade organizations in relation to
running powered equipment in an explosive
environment.
• The operating voltage and frequency are marked on the motor
nameplate.
• Check that the voltage, phase and frequency of the incoming
power source correspond to the voltage, phase and frequency
of the motor(s).
• Electrical characteristics must match those specified on the
motor nameplate.
• The electrical connections must be carried out as shown on
the motor nameplate or in the wiring diagram on the back of
the terminal box cover. If further information is needed, contact
the motor supplier.
• Mount the control panel or the motor-protective circuit
breaker(s) close to the pump to provide convenient control and
easy installation.
• Make sure that the starters and overload control devices are
suitable for operating the pump motors on the voltage, phase
and frequency available. Always follow the control
manufacturer's instructions for proper installation and
connection.
• Grease-lubricated motors are fully lubricated at the time of
manufacture and do not require further lubrication if prompt
installation follows. If the motor has been in storage for six
months or longer, refer to section
and lubricate it before starting.

8.1.1 Lubricating the motor

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