Grundfos CMBE, Инструкция по установке и эксплуатации

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6. Electrical connection
WARNING
Electric shock
‐
Do not make any connections in the terminal box
unless the power supply has been switched off for at
least 5 minutes.
‐
Make sure that the power supply cannot be switched
on accidentally.
‐
The motor must be earthed and protected against
indirect contact in accordance with local regulations.
‐
If the power supply cable is damaged, it must be
replaced by the manufacturer, the manufacturer’s
service partner, or a similarly qualified person.
The user or the installer is responsible for the installation of correct
earthing and protection according to local regulations. All operations
must be carried out by a qualified electrician.
1. Carry out the electrical connection according to local
regulations.
2. Check that the supply voltage and frequency correspond to the
values stated on the nameplate.
6.1 Protection against electric shock, indirect contact
WARNING
‐
The motor must be earthed and protected against
indirect contact in accordance with local regulations.
Protective-earth conductors must always have a yellow/green (PE)
or yellow/green/blue (PEN) color marking.
6.1.1 Protection against mains voltage transients
The motor is protected against mains voltage transients in
accordance with EN 61800-3.
6.1.2 Motor protection
The motor requires no external motor protection. The motor
incorporates thermal protection against slow overloading and
blocking.
6.2 Mains supply
6.2.1 Single-phase supply voltage
• 1 x 110-115 V - 10 %/+ 10 %, 50/60 Hz, PE
• 1 x 200-240 V - 10 %/+ 10 %, 50/60 Hz, PE.
We recommend that you check that the supply voltage and
frequency correspond to the values stated on the nameplate.
If the motor is supplied through an IT network, a dedicated IT
network motor should be used. Contact Grundfos for further
assistance.
1 x 200-240 V models
The wires in the motor terminal box must be as short as possible.
Excepted from this is the separated earth conductor which must be
so long that it is the last one to be disconnected in case the cable is
inadvertently pulled out of the cable entry.
N
L
PE
N
L
TM054034
Example of a direct-connected motor with disconnect switch,
back-up fuse, and additional protection
N
L
PE
TM053494
Mains connection for 1 x 200-240 V models, single-phase motors
1 x 115 V models
Connect plug and line cord on the pump to the 1 x 115 V outlet from
the electricity supply.
TM063507
Connect 1x 115 V models into a 1 x 115 V outlet
We recommend connecting 1 x 115 V models directly into a 1 x 115
V outlet. If an extension cord is used, do not use wire smaller than
14 AWG.
Use of metal conduit with metal conduit connectors is
recommended for all electrical connections.
6.2.2 Single-phase motors
If the motor is connected to an electric installation where an earth
leakage circuit breaker (ELCB) or ground fault circuit interrupter
(GFCI) is used as additional protection, this circuit breaker or
interrupter must be marked with the following symbol:
When an earth leakage circuit breaker or ground fault circuit
interrupter is selected, the total leakage current of all the electrical
equipment in the installation must be taken into account.
6.3 Wiring diagram
6.3.1 Standard functional module, FM 200
Inputs and outputs
The module has these connections:
8
English (US)