Grundfos TPE - Additional Protection; Connection Terminals

English (GB)
10
5.3 Additional protection
5.3.1 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:
The leakage current of the motor can be found in section
19.2 Leakage current.
5.3.2 Three-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 of the following type:
• It must be suitable for handling leakage currents and cutting-in
with short pulse-shaped leakage.
• It must trip out when alternating fault currents and fault
currents with DC content, i.e. pulsating DC and smooth DC
fault currents, occur.
For these motors an earth leakage circuit breaker or ground fault
circuit interrupter, type B, must be used.
This circuit breaker or interrupter must be marked with the
following symbols:
The leakage current of the motor can be found in section
20.2 Leakage current.
Protection against phase unbalance
The motor must be connected to a power supply with a quality
corresponding to IEC 60146-1-1, class C, to ensure correct motor
operation at phase unbalance.
This also ensures long life of the components.
5.4 Connection terminals
The descriptions and terminal overviews in this section apply to
both single-phase and three-phase motors.
For maximum tightening torques, see section 22.1 Torques.
The number of terminals depends on the functional module (FM).
The fitted module can be identified on the motor nameplate.
See fig. 8.
Fig. 8 Identification of functional module
Note
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.
Note
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.
ELCB
(GFCI)
ELCB
(GFCI)
TM05 8641 2513
Env.Type :
Serial no :
SF CL:
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:
:
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:
Made in Hungary
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in
:
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:
f
in
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Hz
P2
I
SF Amp:
rpm
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:
:
:
:
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E.P. Motor
DK - 8850 Bjerringbro, Denmark
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