Electrical Work; Monitoring Devices - Wilo -Rexa PRO-S Installation And Operating Instructions Manual

2.4

Electrical work

2.5

Monitoring devices

Installation and operating instructions • Wilo-Rexa PRO-S • Ed.01/2022-03
Labelling disc: 0-0.0* W1 FKN CE
–
* Protection level according to EN 170 not relevant for this
work.
• Breathing protection mask (EN 149): Half mask 3M series 6000
with filter 6055 A2
Article recommendations
The branded products in the parentheses constitute non-binding
suggestions. Similar products from other brands can also be used.
Adherence to the standards mentioned is required.
WILO SE does not assume any liability for the adherence of the
aforementioned products to the corresponding standards.
• Electrical work must be carried out by a qualified electrician.
• Disconnect device from the mains and secure it against being
switched on again without authorisation.
• Observe applicable local regulations when connecting to the
mains power supply.
• Comply with the requirements of the local energy supply com-
pany.
• Train personnel on how to make electrical connections.
• Train personnel on the options for switching off the device.
• Observe the technical information in these installation and op-
erating instructions as well as on the rating plate.
• Earth the device.
• Observe provisions for connection to the electrical switching
system.
• Comply with the specifications on electro-magnetic compatib-
ility when using electronic start-up controllers (e.g. soft starter
or frequency converter). If required, take special measures into
account (e.g. shielded cables, filters, etc.).
• Replace defective connection cables. Contact customer service.
The following monitoring devices must be provided on-site:
Circuit breaker
The size and switching characteristics of the circuit breakers must
conform to the rated current of the connected product. Observe
local regulations.
Motor protection switch
Make provision for an on-site motor protection switch for devices
without a plug! The minimum requirement is a thermal relay/mo-
tor protection switch with temperature compensation, differen-
tial triggering and anti-reactivation device in accordance with the
local regulations. In case of sensitive mains, make provision for
the installation on-site of other protective equipment (e.g. over-
voltage, undervoltage or phase failure relay, etc.).
en
7