Electrical Connection; Line Reactors; Overload Protection - Grundfos TPE2 D Manual Del Usuario

1.4 Electrical connection

1.4.1 Conductors
See section 9.2 Cable requirements.
1.4.2 Torques
Maximum tightening torques for the terminals can be found in
section 34.1 Torques.

1.4.3 Line reactors

1.4.4 Maximum line reactor size must not exceed 1.5 mH.
Short circuit current
If a short-circuit occurs, the pump can be used on a power supply
delivering not more than 5000 RMS symmetrical amperes, 600 V
maximum.
Fuses
Fuses used for motor protection must be rated for minimum
500 V.
Motors up to and including 3.0 hp (2.2 kW) require class K5 UR
fuses.
Branch circuit protection
When the pump is protected by a circuit breaker, this must be
rated for a maximum voltage of 480 V. The circuit breaker must
be of the "inverse time" type.

Overload protection

Degree of overload protection provided internally by the drive, in
percent of full-load current: 102 %.
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