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Technical Information
7.1.5 Connecting the connectors
7.1.5.1 Connectors at the top
The connectors are delivered encoded and cannot be interchanged between differ-
ent MRcards. The wires are contacted maintenance-free in the connector via a
spring clip. Rigid wires (stripped) or stranded wires with end sleeves are only in-
serted into the connectors to clamp them. Stranded wires (braids) without end
sleeve are clamped by pushing in the orange opener (e.g. using a flt-blade screw-
driver with max. 3.5 mm width). Unclamping a wires is also done by pushing in the
opener.
The permissible wire cross-sections can be found in the following tables.
Wire
Nominal cross-section
Rigid
Flexible
Flexible with end sleeve
Table 6: Permissible wire cross-sections for connectors at the top
7.1.5.2 Connectors at the front
The wires are contacted in the connector via a spring clip. Rigid wires (stripped) or
stranded wires with end sleeves are only inserted into the connectors to clamp
them. Stranded wires (braids) without end sleeve are clamped by pushing in the or-
ange opener (e.g. using a flt-blade screwdriver with max. 3.5 mm width). Unclamp-
ing a wires is also done by pushing in the opener.
The permissible wire cross-sections can be found in the following tables.
Wire
Nominal cross-section
Rigid
Flexible
Flexible with end sleeve
Table 7: Permissible wire cross-sections for connectors at the front
28
Cross-section
2.5 mm²
0.2
2.5 mm²
–
0.2
2.5 mm²
–
0.25
2.5 mm²
–
Cross-section
1.5 mm²
0.2
1.5 mm²
–
0.2
1.5 mm²
–
0.25
1.5 mm²
–
MRX
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