Install Neutral Current Transformer Adapter (NCT Adapter) 150A-5000A
This is a miniature Rogowski coil. It mounts between the incoming Neutral disconnect and the breaker trip unit. It
converts the signal from an iron Core Neutral sensor to a Rogowski voltage output which is wired to the Breaker's
Trip Unit Neutral input connections. It allows a single breaker in an existing M-T-M arrangement to be replaced and
operated with an existing 4-wire Multi-Source GF scheme. See
The Neutral CT Adapter supports iron core Neutral sensors compatible with MicroVersa Trip, MVT RMS-9,
MVT Plus & PM, Power Plus, Pro Trip and EntelliGuard TU rated from 150 to 5000 Amps as used in switchboards and
switchgear from 1979-2015. It is available in five variations (shown in Table below).
Catalog Number
RNCTA1200 (R)
RNCTA2000 (R)
RNCTA3000 (R)
RNCTA4000 (R)
RNCTA5000 (R)
Note: The RNCTA1200 is unique because the Rogowski sensors on the breaker are actually 630A & 1250A rated.
Install Door Interlock System (Cassette Side)
shows the components that make up the AKD-5 retrofill door interlocking assembly:
Figure 27
Figure 27. AKD-5, AKD-6—Door Interlocking Components
31 EntelliGuard R Circuit Breaker Retrofill AKD-5/6 Installation Manual
Table 8
&
Figures13A-F.
Supported Neutral CT ratings (A)
600, 1200
150, 200, 400, 800, 1000, 1600, 2000
3000
2500, 3200, 4000
5000
DEH0005240 R01