KSB Multi Eco - Protective Equipment; Overload Protection Device; Protection against Overheating; Electrical System

5 Installation at Site
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Multi Eco
5.5 Protective equipment
5.5.1 Overload protection device
CAUTION
Motor overload
Damage to the motor!
▷ Protect the motor by a thermal time-lag overload protection device in
accordance with IEC60947 and local regulations.
1. Set the overload protection device to the rated motor current.
(ðSection4.3,Page14)
5.5.2 Protection against overheating
WARNING
Motor overheating due to poor ventilation
Burns from touching hot surfaces!
Damage to the pump set!
▷ Never cover the ventilation opening.
▷ Install the pump set at distance of at least 30 mm from the wall in a dry, well-
ventilated room.
▪ The single-phase motors of Multi Eco pump sets are equipped with a thermal
overload protection device with automatic reset and start-up.
▪ The three-phase motors of Multi Eco pump sets are not equipped with a thermal
overload protection device.
NOTE
KSB recommends that pump sets without thermal overload protection should be
connected via a thermal protective switch.
5.6 Electrical system
5.6.1 Electrical connection
DANGER
Electrical connection work by unqualified personnel
Danger of death from electric shock!
▷ Always have the electrical connections installed by a trained and qualified
electrician.
▷ Observe regulations IEC60364.
WARNING
Incorrect connection to the mains
Damage to the mains network, short circuit!
▷ Observe the technical specifications of the local energy supply companies.
1. Check the available mains voltage against the data sheet.
2. Select an appropriate start-up method.