Electrical Unit - SA -033-M Installation And Maintenance Manual

ELECTRICAL UNIT

• The electrical unit should have a multiple separation system with contact opening
of at least 3 mm.
• Connection to the mains can only be done using a rigid cable. In the event that a
flexible cable is used this should have terminals to connect it to the pump motor
terminals.
• A heat protector is incorporated into single-phase pumps. In these, switch
installation is sufficient as in the "Network connection" diagram
• In the three-phase motor a motor guard with heat-magnetic protection needs to be
used.
• A protection differential of 0.003 A is needed for any pump in order to protect from
electrical escapes (shown in diagrams).
• Three-phase motors should be protected from overload by a safety switch for the
motor.
• The heat relay regulation data for the single-phase motor are merely illustrative
since the motor comes with an incorporated protector.
CONEXIONES ELÉCTRICAS - ELECTRICAL CONNECTIONS
BRANCHEMENTS ELÉCTRIQUES - ELEKTRISCHE ANSCHLÜSSE
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