Connections in Detail
4-
The Mk7A Meter 4-9
• Figure 4-10 Location of the Config jumper
Connections in Detail
Current and Voltage
Ia
1
TB5
In L1
432
L2
56
L3
• Figure 4-11 TB5 Connections including a switched/metered load
Figure 2-18 shows the connection method with an extra load circuit L2. The nominal
voltage input range is 220 - 240 VAC. The limit range of operation is 176VAC to
288VAC. The current range depends on the current range of the meter, and should be
limited to Imax. The Load terminals TB5-5 and TB5-6 are limited to 60A. Note that
there is no IEC standard for a 60A load control relay, so for type test approval 40A is
stated.
There are a number of variations for the internal configuration of the meter, including
internal contactors. Table 4-3 illustrates the options. In all cases Ia is the incoming
current, and should be limited to 100A. In is the neutral connection, and should be
limited to 100A.
To Next Page
Loading...
Need help?
General
