1 Number Contacts
The pole number (number contacts) important consideration when
selecting connector for certain application.
Examples
Fig. The assumed conductor cross-sections
can found the derating diagram (power loss curve).2: Han® 3A
(108 contacts contact) (108 contacts contact)
2.1 Electrical Criteria
2.
.1: Han® 108 Fig. Also, certain arrangements have
become common.
DIN 43652 specifies the design and number contacts for only four types
of connectors.1. the connector has a
protective contact (PE), should counted separately.
The manufacturer’s specification relates the current, which all connector
contacts can carry simultaneously. Usually, you must take into
account that only useful contacts are counted. 2.2 Current
The rated current (current-carrying capacity) another selection criterion.Criteria for Selecting Connectors 23
2 Criteria for Selecting Connectors
2.1. For all other (not standardized) rectangular connectors, the
number poles can chosen freely. 2
