Page 224 - Elpress英文样本电气连接压接系统

Technical information

Connecting materials Conductor design
Elpress uses copper, brass and aluminium Cable standard IEC 60228 provides:
as terminal materials. Information about materials, construction and resistan-
The copper and brass products are ce values for both copper and aluminium conductors.
electrolytically tin plated for increased Class 1 solid conductor
corrosion resistance. In a bimetal (copper Class 2 stranded conductor
aluminium) terminal, the copper part is Class 5 flexible conductor
untreated. Class 6 highly flexible conductor

Brass UL-approved terminals
Brass is mainly used for flat pin sleeves KR/KS, KRF/KSF, KRFS, KRT/KST UL approved in
in areas up to 6 mm², where good accordance with file no. E205350. UL certified
suspension properties are desired. products are delivered with UL marking on the label
Brass is an alloy of about 70% copper and including the UL file number and/or certification
about 30% zinc and has very good cold code for control by an UL inspector. The certificate
form properties. can be downloaded at UL Product IQ.

Copper MCM and AWG cross-reference table to the corresponding area
The copper used by Elpress for termi- in mm²
nals has a purity of at least 99.95 %. Its
excellent properties for use in electrical MCM No. Area mm² AWG No. Area mm²
terminals are among the following: 250 127 36 0,013
• high conductivity (only silver is better) 300 152 34 0,020
0,032
32
350
177
• high corrosion resistance 400 203 30 0,051
• good formability 450 228 28 0,080
• good sealability 500 253 26 0,13
In manufacturing the neck of the termi- 550 279 24 0,20
nal element is soft soldered in order to 600 304 22 0,33
obtain as good form properties and good 650 329 20 0,56
enclosure around the conductor as 700 355 19 0,65
possible during the contact crimping. 750 380 18 0,82
This then provides a terminal that 800 405 17 1,04
exhibits low transitional resistance and 850 431 16 1,31
good mechanical properties. 900 456 15 1,65
1000 507 14 2,08
1100 557 13 2,62
Aluminium 1200 608 12 3,31

1300 659 11 4,17
The aluminium used for through
connectors and cable terminals has a 1400 709 10 5,26
9
1500
760
6,63
purity of at least 99.7 % and its excellent 1600 811 8 8,37
qualities are: 1700 861 7 10,6
• low weight 1800 912 6 13,3
• strong, in relation to its weight 1900 963 5 16,8
• good electrical conductivity, approxima- 2000 1013 4 21,2
tely 60% of the conductivity of copper 3 26.4
• easy to work with 2 33.6
1 42.4
1/0 53,5
2/0 67,4
3/0 85,5
4/0 107
Remarks:
1. The information in this table comes from catalogues published by respected cable
providers and does not refer to official standards.
2. The types relating to AWG vary depending on the different design of the conductors,
i.e. the number of strands.
AWG > 20 refers to single strand conductors.
AWG ≤ 20 refers to multi stranded conductors.
Exact areas for specific number of strands can be found in cable provider catalogues.

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