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NOTE! When locating and siting the machine prior to and during operation, it is important to

ensure that the metal chassis of the machine does not come into contact with the welding circuit,

and/or surfaces so connected.

NOTE! Never aim metallic grinding spray/sparks towards the equipment.

2.3 Distribution network

All regular electrical devices without special circuits generate harmonic currents into

distribution network. High rates of harmonic current may cause losses and disturbance to

some equipment.

Kempact 181A, 251R, 251A:

Equipment complying with IEC 61000-3-12

Kempact 253R, 253A:

This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc

is greater than or equal to 2.7 MVA at the interface point between the user’s supply and

the public supply network. It is the responsibility of the installer or user of the equipment

to ensure, by consultation with the distribution network operator if necessary, that the

equipment is connected only to a supply with a short-circuit power Ssc greater than or equal

to 2.7 MVA.

Kempact 323R, 323A:

This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc

is greater than or equal to 2.1 MVA at the interface point between the user’s supply and

the public supply network. It is the responsibility of the installer or user of the equipment

to ensure, by consultation with the distribution network operator if necessary, that the

equipment is connected only to a supply with a short-circuit power Ssc greater than or equal

to 2.1 MVA.

Kempact 251 MVU:

This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc

is greater than or equal to 1.1 MVA at the interface point between the user’s supply and

the public supply network. It is the responsibility of the installer or user of the equipment

to ensure, by consultation with the distribution network operator if necessary, that the

equipment is connected only to a supply with a short-circuit power Ssc greater than or equal

to 1.1 MVA.

Kemppi KEMPACT 251R User Manual

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