DAB MICRA HS Series, Инструкция по установке и эксплуатации

Страница: 7 / 19

EN
7
4 Electrical connections
4.1 General characteristics
The electrical connection must be made by qualified staff in accordance with the relevant legal requirements.
The device is not intended for use by persons (including children) with below-normal physical, sensorial or mental
capacities, or with insufficient experience or know-how, unless they have received supervision or instruction in use of
the device from a person in charge of safety. Children must be supervised to ensure that they do not play with the
device.
Before working on the pump, check that you have disconnected the electricity supply and it cannot be accidentally
restored.
Connect the pump to the electrical earth.
The pump must be connected to an external mains supply switch with a breaking distance between contacts of at
least 3 mm on all poles.
The pump unit nameplate is marked with the voltage, the maximum rated current and the power factor (PF).
If the pump is supplied by an electrical system fitted with a differential safety breaker (ELCB) providing additional protection, this
breaker
must trip in the event of ground currents with a direct current component (pulsed DC currents).
Power supply voltage:
1 x 200-240 V -10%/+6%, 50/60Hz, PE.
Current absorption can only be measured with instruments capable of reading RMS values. If instruments of different kinds are used,
the value measured will not be the effective value.
5 Installation
5.1 Cable size
The voltage drop of 4% complies with the CEI-EN 60204-1 standards.
The calculations provide the following maximum cable lengths, at a power supply voltage of 230 V.
Maximum cable length [m]
Motor
(P1)
I
N
Cable size
[kW] [A] 1,5 mm
2
2,5 mm
2
4 mm
2
6 mm
2
MIN 1 6,7 85 140 220 330
MAX 2,2 8,3 70 110 180 260
5.2 Submersible power supply cable
Joints in the motor cable must be made using the relative kit.
Cable joint kit
Length of cable [m] Cable cross-section [mm
2
] Model
L30 1,5 All models
L60 1,5 All models
L90 1,5
All 302 (except 302-8)
and 303 (except 303-5,303-6) models
L90 2,5 302-8;303-5,303-6;304-3;304-4
Tesla offers a pre-assembled package with motor, joint and shielded cable (see codes available).