Siemens SIMOSEC - Current and Voltage Transformers

832-6063.0 * DESCRIPTION SIMOSEC * REVISION 02 15
Description
8.3 Current and voltage transformers
4MC70 33, 4MC70 31 toroidal-type current transformers and
4MC70 32 bus-type current transformer
• Single-pole toroidal-core current transformer
• Free of dielectrically stressed cast-resin parts (due to design)
• Inductive type
• Climate-independent
• Secondary connection by means of a terminal strip inside the panel
• 1A or 5A CT secondary rating, to suit order requirements
4MA7 block-type current transformer / 4MR voltage transformers
• Dimensions according to DIN 42 600 Part 8
• Single-pole indoor block-type current transformer
• Single-pole indoor voltage transformer
• Cast-resin insulated
• Secondary connection by means of screw-type terminals
• 1A or 5A CT secondary rating, to suit order requirement
Fig. 10: Toroidal-type current transfor-
mers installed around the cables
Fig. 11: Block-type current transformers
and voltage transformers in the
billing metering panel
a
Three-phase current transformer 4MC63 53
(not shown)
d
Block-type current transformer 4MA7
s
Cable-type current transformer 4MC70 33
f
Voltage transformer 4MR