User Documentation

Weidmüller Interface GmbH Co. KG; Klingenbergstraße 16, 32758 Detmold-Germany
A2T 2.5 3C FT-PE
A2T 2.5 3C PE
550 V
19 A / ΔT ≤ 40 K
18 A / ΔT ≤ 40 K
0,8 mΩ
0,8 mΩ
1,4 mΩ
2,5 mm² 2,5 mm²
0,5 - 2,5 mm²
0,5 - 2,5 mm²
0,5 - 2,5 mm²
0,5 - 2,5 mm²
0,5 - 2,5 mm²
0,5 - 2,5 mm²
28 - 12 AWG
28 - 12 AWG
10 mm 10 mm
When using the types A2T 2.5... and A2T 2.5 PE especially with other terminal blocks series or sizes or
accessories the requirements for clearance and creepage distances according to table 1 of
EN 60079-7 must be observed. Regarding the use of covers, cross-connectors and end brackets the
instructions of the manufacturer must be followed.
For cross connection accessories current rating, resistance across the terminal please refer to the table
under “Technical data” above.
T6 (- 60°C ... +40 °C)
T5 (- 60°C … +55 °C)
T4 (- 60°C ... +70 °C)
Note:
If smaller cross sections than the rated cross section are used, the belonging lower current has to be laid
down in the IECEx/EC-Type Examination Certificate of the complete apparatus.
Mounting instructions:
The Feed-through terminals and PE terminals of the A-series are suitable for application in enclosures in
atmospheres with flammable gases or combustible dust. For use in flammable gases these enclosures must
satisfy the requirements according to IEC/EN60079-0 and IEC/EN60079-7. For use in combustible dust
these enclosures must satisfy the requirements according to IEC/EN60079-0 and IEC/EN60079-31.
Regarding the use of accessories the instructions of the manufacturer must be followed.
Schedule of Limitations:
The Feed-through terminals and PE terminals of the A-series are suitable for use in enclosures in
atmospheres with flammable gases or combustible dust. For flammable gases these enclosures must satisfy
the requirements according to EN 60079-0 and EN 60079-7. For combustible dust the enclosure must satisfy
the requirements according to EN 60079-0 and EN 60079-31.
The enclosure shall be constructed to block all sun and UV light from affecting the terminal blocks. The
terminal blocks shall be placed inside a suitable certified IP54 enclosure in type of protection “e” for gas
atmosphere. For dust atmosphere the terminal blocks shall be mounted inside a suitable certified enclosure
(EN 60079-31) in type of protection “t”.
Under normal operating conditions the temperature rise of the terminal blocks is maximum 40 K, measured
at the maximum permitted rated current. Due to the above mentioned, the terminal blocks may be used in
apparatus of temperature classes T6..T1 as long as the terminal block ambient temperature range is not
exceeded. No part of terminal block must exceed 110 °C under any condition.
- Conductor cross section flexible
- cross section, American Wire Gauge
- Stripping length
- Rated conductor cross section
- Conductor cross section stranded
- Contact resistance top level
with rated conductor, 2,5 mm²
- Contact resistance bot level
with rated conductor, 2,5 mm²
- Rated voltage
T
echnical data according to IEC/EN 60079-7 (increased safety "eb"):
- Rated current with ZQV
- Rated current
- Conductor cross section solid
Version: A2T 2.5 3C FT-PE; D1377516 Index: 00 Date: 05.2019
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