Fig. 5.
View of 1600 A Circuit Breaker with Front Cover and Digitrip RMS Trip Unit Removed to Expose Power Relay
Module and Stab-In Terminal Block
6.
Potential Transformer module with Dielectric Test
Disconnect Plug (Digitrip RMS Trip Unit Models
810, 910 and 1050 only)
As shown in Figs. 1 and 4, the Digitrip RMS Trip Unit
assem
b
ly mounts in the left-hand pole of a
n
R-
F
rame
Circuit Brea
k
er.
The R-
F
rame Circuit Brea
k
er is factory wired in
accordance with the applicable pages of connection dia-
gram l.L. 29C714. Any field installation or modification
must be made in accordance with the applicable pages of
this same document.
IMPROPER POLARITY CONNECTIONS ON THE FLUX
SHUNT TRIP COIL WILL VOID OVERLOAD AND
SHORT CIRCUIT PROTECTION WHICH COULD
RESULT IN PERSONAL INJURY.
OBSERVE POLARITY MARKINGS ON THE SHUNT
TRIP LEADS AND CONNECT PROPERLY WITH
INSTRUCTIONS PROVIDED SHOULD ANY CHANGES
BE MADE.
5.3 Flux Shunt Trip
The mechanical force required to initiate the tripping
action of a type R-
F
rame is pr
o
vided by a spe
cial
flux shunt t
r
ip. It is mounted, as sh
o
wn in Fig. 4, on
the trip unit mounting deck. It contains a permanent mag-
net assembly, moving and stationary core assemblies
along with a spring and coil. The circuit breaker mecha-
nism assembly contains a mechanism actuated reset
CAUTION
EATON CORPORATION www.eaton.com
Page
11
Effective Date October 2010
Instruction Leaflet 29C713E
Effective October 2010
