Kt/Km Electrical Connection - AUMA SAEx 07.2 Operation Instructions Manual

6.3 KT/KM electrical connection

Short description KT plug-in electrical connection with screw-type terminals for power connection and
Technical data
5) Four protective earth connections within frame
6) The sum of the currents of all control contacts must not exceed 50 A.
Figure 20: Electrical connection for KT/KM (figure shows KT version)
KT-Ex e
Ex e
[1]
[2]
Ex d
[1] Terminal carrier with screw-type/spring
clamp terminals
spring clamp terminals for control contacts.
KM version with additional support terminals (terminal blocks) via terminal carrier.
Both versions (KT and KM) are available with terminal compartment in protection type
Ex e (increased safety) as well as in protection type Ex d.
The protection type is indicated on the name plate by means of the Ex marking. Refer
to Name plate [} 8].
Plug-in connection is made via the connection frame. Removing the cover is sufficient
for connecting the cables. Thereby, the connection frame with the cable entries re-
mains at the device. The flameproof interior of the connected devices remains sealed.
Table 10: KT/KM electrical connection
No. of contacts max.
Designations
Support terminals max.
Connection voltage max.
Nominal current max.
Type of customer connection
Connection diameter max.
KT-Ex d
[1]
[2]
[2] Connection frame
Power contacts
5)
6 + PE conductor
U1, V1, W1, U2, V2, W2,
3
1,000 V
25 A
Screw connection
PE = Ring lug/U-bracket
2
10 mm
Electrical connection
Ex d
Ex d
Control contacts
50
1 to 36, 37 to 50
12
250 V
6)
5 A
Spring clamp terminals
2
2.5 mm
23