7
Instruction Leaflet
IL29C614F
Effective December 2011
Instructions for The Digitrip RMS 310 3-Pole and
4-Pole Trip Unit Installation and Operation with
K-Frame Series C Circuit Breakers
EATON CORPORATION
www.eaton.com
tests to comply with National Electric Code require-
ments under Article 230-95(C). See Section 6.2 for
testing instructions.
The optional “Internal Accessories” listed in Section 8.2
are available for installation in the right pole of a Digitrip
RMS 310 Ground Fault Trip Unit. These items, if
required, must be ordered separately and installed per
the instructions in Section 3.3.3.
3.3.2 INSTALLATION
Position trip unit in base. Make sure latch bracket pin is
properly seated in slots in side plates (see Figure
6
). If
necessary, move latch toward load end of breaker to
seat trip unit.
DO NOT EXCEED A TORQUE OF 6 TO 8 LB.-FT
(8 TO 10 NM). EXCESSIVE TORQUING WILL SHEAR
SCREWS.
FAILURE TO APPLY THE REQUIRED TORQUE MAY
LEAD TO EXCESSIVE HEATING AND CAUSE NUI-
SANCE TRIPPING OF THE CIRCUIT BREAKER.
Screw in and tighten three trip unit retaining screws
(center first). Torque to 6 to 8 lb.-ft (8 to 10 Nm) (see
Figure
6
).
To install the ground fault alarm and neutral current sen-
sor connector printed circuit board, an accessory switch
must be installed in order to provide a support bracket. If
the auxiliary switch supplied with the trip unit will be
used, install it in the right pole of the breaker per IL
29C122.
See wiring instructions in Section 3.3.3 for special
restrictions on accessory wiring for ground fault
breakers.
Next, insert the four-position connector on the printed
circuit board into the receptacle in the trip unit and push
the board down onto the bracket (see Figure
9
).
Figure 8 Neutral and Alarm Wiring Diagram.
NO Red
NC Blue
C Black
Grey
White
Yellow
Green
Load
120
Vac
L1
L2
NO
NC
Remote
Reset Test
(Optional)
Neutral
Sensor
G.F. Alarm Relay
(Optional)
Source
L
C
R
N
*Auxiliary switch shown in the "Breaker Contacts Open" positon.
Figure 9 Installing Ground Fault Alarm and Current
Sensor Connector PC Board.
View from right side of breaker.
Connector
Insert
Connector,
Then Push
Down
PC Board
!
CAUTION
NOTICE
