Installation Instructions

Document No. 129-555
Installation Instructions
March 20, 2017
Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and
models as design improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective
owners. © 2017 Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
1000 Deerfield Parkway
Buffalo Grove, IL 60089-4513
USA
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Document No. 129-555
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2. Install the CT around the load conductor to be
measured. Verify the CT is installed with the CT
label reading THIS SIDE TOWARDS SOURCE
facing towards the wire direction of the power
source, not the load. See Figure 2.
NOTE: Ensure that the maximum current of the
conductor does not exceed the CT's
rating.
Figure 2. Install CT around Conductor.
3. Reconnect the removable leg or snap the end
down into place. The conductor should be in the
inside of the CT Window. Ensure that the CT leg
core aligns with the main housing core. See
Figure 2.
4. Repeat Steps 1 through 3 if you are using more
than one CT.
5. Connect the white wire on the CT to the positive
terminal (+) on the measuring device. See
Figure 3.
6. Connect the black wire on the CT to the
negative (-) terminal on the measuring device.
No connection will be made to the shield (S)
terminal. See Figure 3.
7. If the digital energy meter is powered, verify that
the CT LED next to the wired CT terminal block
is GREEN. If it is RED, verify that the CT is on
the correct phase and/or is installed with the
label on the CT reading THIS SIDE TOWARDS
SOURCE facing toward the wire direction of the
power source, not the load. After it is corrected,
the LED will change to GREEN.
Figure 3. Connect White Wire to Positive (+) Terminal.
Connect Black Wire to Negative (-) Terminal.
You are now ready to begin your monitoring session.