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Figure 3 Interchangeable Rating Plugs for Use with Digi-
trip RMS Trip Units
If the rating plug is removed from the trip unit while the cir-
cuit breaker is closed, the circuit breaker may trip. Therefore,
the rating plug must be securely tightened before operating
the breaker.
4.0 Digitrip RMS Model Consider-
ations
The trip unit contains a receptacle for use with an Auxiliary
Power Module (Cat. No. PRTAAPM). When this module is in
place on the trip unit and connected to a 120V 50/60Hz sup-
ply, a circuit breaker with a Digitrip RMS Trip Unit assembly
installed can be bench tested using the integral test panel.
With the circuit breaker in the closed position, it can be
“tripped” when the test selector switch is in either the “6T”
or “GFT” positions.
With the Auxiliary Power Module installed, the circuit
breaker can also be field tested using secondary currents
provided by an Amptector Trip Unit test kit as illustrated in
I.L. 33-791. Detailed instructions for testing trip units are
given in the individual trip unit instruction leaflets referenced
in Section 8.1.
CauTION
ONly ampTECTOr TEsT kIT sTylEs 140D481g02r, 140D481g02rr
Or 140D481g03 IN CONJuNCTION wITh a DIgITrIp aDapTEr
(sTylE 8779C02g01) shOulD BE usED. uNmODIfIED ampTECTOr
TEsT kITs sTylEs 140D481g01 aND 140D481g02 shOulD NOT BE
usED TO TEsT BrEakErs wITh DIgITrIp rms TrIp uNITs as
DamagE TO ThE TrIp may OCCur.
Power Relay Module
(not provided on 510)
Digitrip RMS
Trip Unit
Rating Plug
Auxiliary Power
Module
Receptacle
Disconnect Plug
for Breaker
Dielectric Testing
Field Test Kit
Receptacle
Terminal Block
Auxiliary Current
Transformer
Assembly
Potential Trans-
former Module
(810, 910 and
1050 only)
Figure 4 Trip Unit Assembly with Digitrip RMS Trip Unit and Associated Components Installed on Breaker
Effective July 2010
Instructional Leaflet
IL8700C39-04
5
eaTOn CORPORaTIOn
www.eaton.com
Summary of Contents for Digitrip RMS Series
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