Assembly / Installation; Electrical Connection - Wilo SK 545 Instrucciones De Instalación Y Funcionamiento

ENGLISH
4.2 Products delivered
Switchgear,
Installation and Operating Instructions

5 Assembly / Installation

5.1 Assembly
The switchgear is fastened in an existed switchgear either to a top hat rail
or with 2 screws (dimensions: see Fig. 2).
5.2

Electrical connection

Electrical connection should be made by a qualified electrician.
Current national regulations must be observed (e.g. VDE regula-
tions in Germany).
– Check that the mains current and voltage comply with the data on the
rating plate.
– The terminal strips are to be assigned as follows in accordance with the
terminal connection diagram (Fig. 3 „with N-conductor") or (Fig. 4 „with-
out N-conductor"):
L1, L2, L3, PE
P1 OK / P2 OK
P1 DIW / P2 DIW
P1 a, b / P2 a, b
P1 c / P2 c
P1 d / P2 d
Subject to technical alterations!
10
Mains connection:
potential-free open contact for turning off Pump 1 or
Pump 2 in the event of a fault, maximum contact rating
250 V/5 A.
The contacts are closed if the following criteria are
met:
– Rotary field clockwise, green LED lights up,
– DI-monitoring has not responded. Turn-off is therefo-
re only active if DI is connected to P1 c / P2 c.
– WSK closed.
unoccupied
WSK
DI Turn-off
unoccupied