4
Instruction Leaflet
IL29C119C
Effective August 2011
Installation Instructions for E2F, E2FM Mining Service Circuit Breakers
EATON CORPORATION
www.eaton.com
(See accessory schematic diagram on side of cir-
cuit breaker.)
Note: If terminal shield or interphase barriers are to
be installed on the circuit breaker, install them after
the terminals are connected.
2.6.
If required, install terminal shield on circuit breaker
cover with mounting screws provided.
2.7. The supplied interphase barriers should be installed to
the line end of the circuit breaker (E²FM1000V only) by
2.8.
After the circuit breaker is installed, check all
mounting hardware and terminal connecting hard-
ware for correct torque loading. Torque values for
line load terminals are given in Tables 2-1 and 2-2
and on the circuit breaker nameplate.
TABLE 2-1. TERMINAL TYPES
Terminal
Terminal Screw AWG
Metric Wire
Torque Value
Catalog Number Body
Head
Wire
Wire
Type
Lb. In.
Material
Type
Range Range
Aluminum 3/16
#4-4/0 2 5 - 9 5 Cu/AI 1 2 0 ( 1 3 . 6 )
Socket
Hex
Aluminum 5mm
#4-4/0 2 5 - 9 5 Cu/AI 1 2 0 ( 1 3 . 6 )
Socket
Hex
Aluminum 5/16
#6-300 16-150 Cu/AI 275 (31)
Socket
Hex
Aluminum
2.5-50 Cu/AI See Table 2-2
Aluminum Slotted
2.5-16
See Table 2-2
Steel
Slotted
See Table 2-2
S t a i n l e s s S l o t t e d
2 5 - 9 5 C u
See Table
y
l
n
O
l
e
e
t
S
Note: Terminal wire connectors are UL listed for standard wire sizes as defined in
UL 486A and UL
of three
terminal identified as
TABLE 2-2. TERMINAL TORQUE VALUES FOR
HEAD
Metric Wire
Torque Value,
AWG Wire
Torque Value,
Range
Range
Lb. In.
2.5-6
3.96
35
4.52
40
16-25
5.09
45
35-95
5.65
50
TABLE 2-3. BOLTED CONNECTIONS (KEEPER NUT OR END CAP)
Termination
Nut Thread
Torque Value,
Catalog Number
Size
Lb-In
A
AM
User Supplied
1O-32
35 (4.0)
Slotted
1O-32
35 (4.0)
3.0 MANUAL OPERATION
Manual operation of the circuit breaker is controlled by
the circuit breaker handle and the PUSH-TO-TRIP but-
ton. The circuit breaker handle has three indicated posi-
tions, two of which are shown on the cover with raised
lettering to indicate ON and OFF. On the sliding handle
barrier ON, OFF, and trip are also shown by a color
coded strip for each circuit breaker handle position: red
for ON, white for tripped, and green for OFF. On the slid-
ing handle barrier, ON/OFF is also shown with the inter-
national symbols I/O (See Fig. 3-1).
Circuit Breaker Reset
After tripping, the circuit breaker is reset by moving the
circuit breaker handle to the extreme OFF position.
Note: In the event of a thermal trip, the circuit breaker
cannot be reset until the thermal element cools.
PUSH-TO-TRIP Button
The PUSH-TO-TRIP button checks the tripping function
and is used to periodically exercise the operating mecha-
nism.
Magnetic-Only Mining Service Circuit Breaker
Adjustment of Trip Setting
The F-frame E magnetic-only mining service circuit
breaker has a trip setting adjustment mechanism that
permits the circuit breaker to be fine tuned to provide
more precise protection. The mechanism consists of a
cam with eight positions for different trip levels The trip
levels are labeled A through H; actual trip values are
shown on the circuit breaker cover nameplate and in
Table 3-1. To adjust the trip level, depress and rotate
adjustment button clockwise to the desired setting.
CAUTION
A ROTATION STOP PREVENTS THE ADJUSTMENT
BUTTON FROM BEING ROTATED COUNTERCLOCK-
WISE BEYOND POSITION
A.
THE CIRCUIT BREAKER
CAN BE DAMAGED IF THE BUTTON IS FORCED
PAST POSITION
A
IN THE COUNTERCLOCKWISE
DIRECTION.
sliding barrier into dovetail grooves between terminals.
2
Screw Head
Type
#4-4/0
#1 4-1/0
#1 4-1/0 2.5-50
Cu/AI
Cu/AI
#1 4-#4
10
2-2
Slotted
