Instructions for use of
etc-12/etd
G Series Direct Replacement Trip Unit
page
4 of 13
revision B,
8/20/10
Introduction:
The Satin American
etc-12 G series
can be
used to replace various OEM trip units while
utilizing current sensors and flux trip devices
that are already on the circuit breaker. The
G-series
trip unit contains the same
hardware and operates using the same
curves as the
etc-12
trip unit but is packaged
in an enclosure that makes it plug-in
compatible with several original
General
Electric
trip units.
This manual provides instructions for
individuals with circuit breaker maintenance
experience to use the
etc-12
to replace
General Electric MicroVersaTrip,
MicroVersaTrip RMS-9
MicroVersaTrip Epic,
MicroVersaTrip Plus
and
MicroVersaTrip PM
*
The
etc-12
trip unit is supplied with all
protective functions. Unneeded protection
bands can be shut off. The unit is adaptable
to all frame sizes without the need for ratings
*
The
etc-12 / etd G series
is compatible with current
transformers and flux trip device on breakers retrofitted
with
MicroVersaTrip PM
but advanced features such as
voltage / power monitoring and plug-in compatible
communications are not available.
plugs. The
etc-12
is compatible with
residual-sensing ground fault for 3 and 4 wire
applications.
In the special instance when ground fault
protection is being added on a 4-wire
system, an additional neutral sensor, copper
details and secondary disconnects may be
required. Contact the factory before
beginning a conversion of such a system
Installation requires familiarity with circuit
breaker operation and maintenance, careful
workmanship and compliance with
instructions. Conversion requires removal of
the original trip unit, installation of the new
trip device and minor rewiring. In the event
that any of the original components are found
to be defective, Satin American can provide
compatible replacements. Qualified
individuals can usually accomplish the
upgrade in less than an hour.
IMPORTANT!!
RETROFITTED BREAKERS MUST BE PERFORMANCE TESTED BEFORE BEING RETURNED
TO SERVICE. PRIMARY INJECTION TESTING IS STRONGLY RECOMMENDED. REFER TO
THE
TESTING SECTION IN THE SECTION II MANUAL FOR DETAILED INSTRUCTIONS.
WARNING!!
TO PREVENT ELECTRICAL SHOCK AND INJURY, DISCONNECT THE BREAKER FROM ALL
PRIMARY AND SECONDARY POWER SOURCES AND CONFIRM THAT THE BREAKER IS
OPEN AND CHARGING SPRINGS ARE DISCHARGED BEFORE BEGINNING WORK.
REFER TO NFPA-70E FOR COMPREHENSIVE ELECTRICAL SAFETY
GUIDELINES
Summary of Contents for etc-12 G series
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