2
Instruction Leaflet
IL29C119C
Effective August 2011
Installation Instructions for E2F, E2FM Mining Service Circuit Breakers
EATON CORPORATION
www.eaton.com
WARNING
DO NOT ATTEMPT TO INSTALL, ADJUST, OR PER-
FORM MAINTENANCE ON EQUIPMENT WHILE IT IS
ENERGIZED. SEVERE PERSONAL INJURY, DEATH,
OR SUBSTANTIAL PROPERTY DAMAGE CAN
RESULT FROM CONTACT WITH ENERGIZED EQUIP-
MENT. ALWAYS VERIFY THAT NO VOLTAGE IS
PRESENT BEFORE PROCEEDING WITH THE TASK,
AND ALWAYS FOLLOW GENERALLY ACCEPTED
SAFETY PROCEDURES.
THE EATON CORPORATION IS NOT LIABLE
FOR THE MISAPPLICATION OR
MISINSTALLATION OF ITS PRODUCTS.
The user is cautioned to observe all recommendations,
warnings, and cautions relating to the safety of personnel
and equipment, as well as, all general and local health
and safety laws, codes, and procedures.
The recommendations and information contained herein
are based on Eaton experience and judgement, but
should not be considered to be all-inclusive or covering
every application or circumstance which may arise. If
any questions arise, contact Eaton for further information
or instructions.
1.0 INTRODUCTION
General Information
E F and E FM mining service circuit breakers (Fig. 1-1)
are available as 3-pole devices, in several ratings from 3A
to 150A continuous current. The
are avail-
able in both thermal-magnetic and magnetic-only ver-
sions. Mining service circuit breakers have been
developed to meet the Federal Register ruling on trailing
2
cable protection.
This instruction leaflet (IL) gives procedures for the instal-
lation and field testing of E F and E FM mining service
circuit breakers. For this publication, mining service
circuit breaker shall be abbreviated to circuit breaker.
Fig. 1-1
E F Magnetic ONLY Mining Service Circuit
Breaker
2.0 INSTALLATION
The installation procedure consists of inspecting and
mounting the circuit breaker, connecting and torquing the
line and load terminations, and attaching terminal shields
or barriers (when supplied). To install the circuit breaker,
perform the following steps:
Note: The
2
E F and E FM circuit breakers are factory
sealed. Where local codes and standards permit,
internal accessories can be field installed. Accessory
installation should be done before the circuit breaker
is mounted and connected.
Mounting hardware and unmounted terminations
(where required) are supplied in separate packages.
2.1.
Make sure that the circuit breaker is suitable for the
intended installation by comparing nameplate data
with system requirements. Inspect the circuit
breaker for completeness, and check for damage
before mounting.
2
2
2
2
E F and E FM
2
2
2
2
