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HARTING Multiphase Test Connector / 10 B
HARTING Customized Solutions GmbH & Co. KG
2.4 Maintenance
For the Multiphase Test Connector no specific maintenance intervals are required, as long as the device is used
according to the instructions of this operation manual. Anyway, through an interval of two years, the device can be
returned to the manufacturer for a check. Please contact your local HARTING subsidiary.
2.5 Cleaning
Caution:
Do not use aggressive cleaning agents or solvents in order to clean the device. If the Multiphase Test Con-
nector is soiled, use a damp and mild cleaning agent to clean it.
3. General description
The Multiphase Test Connector allows you to check the star- or delta-circuit parameters, the phases (L1, L2, L3), and
the clockwise/counter-clockwise rotating field on the power supply cable to a three-phase motor. The Multiphase Test
Connector also has a display for showing the corresponding test status.
In this document, the Multiphase Test Connector will be referred to simply as the “test connector”.
3.1 Degree of pollution
The dimensioning of equipment depends on the ambient conditions. Contaminants can occur which affect the equip-
ment conductivity while moisture can affect the insulating characteristics of the surface. The pollution degree influ-
ences the creepage distance which then influences the design of the component. The pollution degree is defined for
open, unprotected insulation based on the ambient conditions.
The Multiphase Test Connector is designed for pollution degree 2 (PD 2). It is intended for use in residential, sales
and other business premises, precision engineering workshops, laboratories, test facilities and medical rooms. Oc-
casional condensation may result in the contaminants being temporarily conductive.
Excerpt from the DIN EN 60 664-1 (VDE 0110-1), section 4.6.2:
“Pollution degree 2:
only non-conductive pollution/contaminants occur.” Temporary occurrences of conductivity may
occur when caused by condensation.
The Multiphase Test Connector may also be used for applications that have pollution degree 3 (industrial usage)
since the requirements (e.g. IP54 protection: protected by cover when disconnected) are met (refer to DIN EN 61984,
section 6.19.2.3).
3.2 Overvoltage category
The overvoltage category is dependent on the mains voltage and the installed location of the device. It specifies the
maximum overvoltage resistance of a device when a fault in the power supply network (e.g. a lightning strike) occurs.
The Multiphase Test Connector is designed for overvoltage category III since power supplies for three-phase motors
are designed primarily as fixed, stationary installations for industrial use.
The overvoltage category and the resulting clearance distances influence the dimensioning of the component. There
are four overvoltage categories defined by the standards.
Excerpt from the DIN EN 60664-1 (VDE 0110-1), section 4.3.3.2.2
Equipment classified in overvoltage category III is intended for fixed, stationary installations and for cases
where there are special requirements for the reliability and availability of the equipment.
