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Operating instructions B-Series

Version 2.4, En Page 44 of 81 21-10-2005

Take measures to ensure that the electrical connections and cabling cannot be damaged. The voltage and

frequency must be matched beforehand and correspond with the information on the version of the motor

winding. This is mentioned on the motor plate. Use of the motor without safety switch is not allowed.

With motors protected against explosion the temperature class mentioned on the motor type plate must

correspond with that of the flammable explosive gas.

Extra point(s) for attention with ATEX pumps.

Choose the correct electrical components for the relative category and zone

e.g. motor swivels.

7.3 Operating switch

To be able to carry out activities on the pump/pump unit safely, an operating switch must be present as

near as possible to the machine. It is recommended to also fit an earth leakage switch. Work may only

take place on the installation when all electrical power has been shut off. The installation must be

protected against inadvertent switching on. The switching equipment must suffice with regard to the

prevailing regulations.

7.4 Motor protection

Fit a thermal motor protection or thermal-magnetic motor protection switch to protect the motor against

overloading or short-circuiting. Set the safety device to the motor's nominal current intensity.

Electrical appliances, connection terminals and parts of control systems can

also still be live with a stoppage. Touching can cause death, serious physical

injury or irreparable material damage.

7.5 Connection

With frequency controlled motors ensure a sufficiently high starting torque, and sufficient cooling of the

motor at low speeds. Fit an autonomously working ventilator if necessary. For the wiring diagram see

technical specifications B-series.

The type plate reads 230V/400V (motors to 3kW).

•

This means the winding voltage of the motor, so the voltage that may pass through it, is max.

230V. The 400V stands for the voltage used between the phases. 3x400V is the power current.

This means that the motor must therefore be connected in STAR, see technical specifications B-

Series.

The type plate reads 400V/690V. (motors from 3 kW)

•

This means the winding voltage of the motor may be max. 400V. Because we do not have a 690V

mains, so 400V must be shown, this motor must be connected in TRIANGLE, see technical

specifications B- series.

BBA Pumps B Series User Manual

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