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B) Install one CT over each incoming power line A, B or C, by pressing on the handle to open the split-
core then clipping it over the power line as shown below.
C
) The CTs should be installed on the secondary side of the main switch or main circuit breaker, how-
ever, if this is not possible, such as in the case of a combination breaker panel, then install on the
primary side of the main breaker.
D) Make sure the thumb-squeeze split core CTs clamp tightly. (The CTs should be loose-fitting around
the wires).
E) The CT inputs on the MTU-HV are left-to-right: Phase A, Phase B, Phase C and must be matched
to the corresponding conductors for proper readings. Important, if phasing is not correct, the device
will not measure current, power and energy correctly.
NOTE:
The connectors are polarized and can only be inserted one way – do not force.
NOTE:
If installed on a 208Y/120V 1-PH 3-W system, only install two of the CTs and connect to the two
applicable ports on the MTU. The third CT is not used.
NOTE:
While the TED Pro Commercial MTU is designed to work on services of 400A, it is possible to
use it on services with up to three 400A parallel conductors per phase (up to 1200A) by follow-
ing these steps:
Precision Measurement of Parallel Conductors:
1. Purchase and install 1 - CT Harness Kit (Model ADP) and 3 additional CTs (Model CT301B) for each
additional parallel conductor. IE: If you have a 1200A service with 3 parallel conductors per phase you
will need to purchase 1 - Model ADP harness kits and 6 additional Model CT301B CTs.
2. Refer to installation instructions provided with the CT Harness for correct installation.
F) Determine the best location to mount the MTU.
i. Choose location where it will not interfere with existing equipment or wiring.
ii. If installed in the panel, the MTU may be attached using double-sided tape (if allowed in your
jurisdiction), or with sheet metal or machine screws.
iii. If installed outside the panel, it may be mounted directly to the wall using the mounting lugs on
the MTU, or it may be mounted in a suitably sized junction box.
G) Arrange and tie-wrap all wiring in a neat and tidy manner.
H) Turn the power back on.
The MTU will blink approximately 10 times when power is first applied. After this, it will blink when
transmitting or receiving data.
Do not close the electrical panel until you have completed the installation of the ECC and verified that
Press
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Содержание Pro Commercial
Страница 19: ...Page 19 Rev 1 0 13 Appendix A 1 AUTHORITY MTU HV netzerotools com netzerotools com...
Страница 20: ...Page 20 Appendix A 2 Tie White Wire to Neutral Bus MTU HV netzerotools com netzerotools com...
Страница 21: ...Page 21 Rev 1 0 13 Appendix A 3 MTU HV netzerotools com netzerotools com...
Страница 22: ...Page 22 Appendix A 4 MTU HV netzerotools com netzerotools com...
Страница 24: ...ENERGY INC netzerotools com netzerotools com...