Fig. 4. View of 1600A, Type R-Frame Circuit Breaker with Front Cover Removed to Expose Digitrip RMS Trip Unit
4.2 Digitrip RMS 510
The Digitrip RMS 510 Trip Assembly consists of a Digitrip
RMS 510 Trip Unit as described in I.L. 29-885, 3 or 4 aux-
iliary current transformers and a stab-in trip unit terminal
block as shown in Figs. 4 and 5.
The fourth auxiliary current transformer is supplied when
the optional ground fault protection function is selected in
the trip unit. Also, a side mounted 4-point terminal block
is provided to pre-wire the mode of ground fault sensing
used, i.e., residual or source ground.
The trip unit contains a receptacle for use with an
optional Auxiliary Power module (Cat. No. PRTAAPM).
When this module is plugged in the trip unit and con-
nected to a 120V, 50/60 Hz supply, the circuit breaker can
be bench tested using the integral test panel. With the cir-
cuit breaker in the closed position, it can be
"
tripped”
when the test selector switch is in either the
"
6T ” or “GFT ”
positions.
4.3 Digitrip RMS 610
The Digitrip RMS 610 Trip Assembly consists of a Digitrip
RMS 610 Trip Unit as described in l.L. 29-886, 3 or 4 aux-
iliary current transformers, a stab-in trip unit terminal
block and a Power/Relay module mounted as illustrated
in Figs. 4 and 5. The Digitrip RMS 610 Trip Unit is similar
to a Digitrip RMS 510 Trip Unit with the addition of a four-
digit display, three-phase (
l
, I
B
, I
C
) and one ground cur-
rent (I
G
) or one neutral current (
I
) green pointer LEDs
along with a stepping push button as illustrated in
Table 1. Signal contacts are provided for hard wiring
three remote mode of trip indicators (long delay, short cir-
cuit, ground fault) and a High-Load remote alarm.
The ground current pointer LED and ground fault mode of
trip signal contact are supplied only when the ground
fault protection function is provided in the trip unit.
A 120V, 50/60 Hz 6 VA Power/Relay module is standard
for operating the display and internally mounted signal
relays. The relay contacts are each rated 120V, 1.0A. A
230V 50/60 Hz 6 VA power relay module is also available.
EATON CORPORATION www.eaton.com
Page
7
Effective Date October 2010
Instruction Leaflet 29C713E
Effective October 2010
A
D
