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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

Page 1: ...etc 12 G Series Direct Programmer Replacement for GE MicroVersaTrip units Section 1 Installation Manual shelton ct 1 800 272 7711 www satinamerican com ...

Page 2: ...Intentionally Blank ...

Page 3: ...CONTENTS Introduction 4 1 0 Required Tools 5 2 0 Reference Material 5 4 0 Installation 5 5 0 Installation on Powerbreak 8 6 0 Settings 13 ...

Page 4: ... 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 req...

Page 5: ...539 http www digikey com A9954 ND Mouser Electronics 800 346 6873 http www mouser com 571 4558222 2 0 Reference Material 2 1 Manufacturers Circuit Breaker Maintenance Manual 3 0 Manual and time current curves for original trip unit 3 1 etc 12 Section II Programmer Instruction Manual 4 0 Installation 4 1 Verify that the proper kit was supplied and thoroughly inspect it for damage or missing compone...

Page 6: ...ger is depressed the contacts being extracted will be damaged 4 8 The jumper required for breaker frames above but not including 2000A is inserted in locations 35 and 36 of the harness connector These locations are indicated in blue in figure 2 Location numbers of each cavity are molded into the rear of the connector but it is often possible to install this jumper without removing the programmer m...

Page 7: ... trip unit by pulling down the RELEASE lever on the box mount and inserting the brass retention pin into the mating slot on the existing boxmount Pressing the retention pin against the flat spring will cause the RELEASE lever to move into the locked position Refer to figures 6 and 7 4 11 Make certain that the new trip unit is securely latched into place and its connector is properly mated with the...

Page 8: ... 2 Remove front cover by removing the 4 screws indicated in figures 9 and 10 5 3 Remove the existing solid state trip unit by pulling the release lever as indicated in figure 12 5 4 Inspect the wire harness and add jumper if the breaker is above 2000A frame Refer to step 4 6 FIGURE 9 REMOVE INDICATED SCREWS FIGURE 11 REMOVE INDICATED SCREWS FIGURE 10 REMOVE INDICATED SCREWS FIGURE 12 Pull Lever to...

Page 9: ...plastic housing The notches in the plug body should fit through the notches of the horseshoe Refer to figure 15 5 8 After the plastic housing is properly nested the tabs on the horseshoe bracket should be bent slightly as so to lock the housing in place 5 9 Slide the horseshoe bracket over the positioning pins on the existing programmer mounting bracket Take care not to pinch wires during this pro...

Page 10: ...unt by removing the 4 screws indicated in figure 18 5 12 After the programmer mount is removed there should be enough slack in the cable to slide the horseshoe over the guide pins as described in step 5 9 Once the horseshoe is secured in place remount the programmer mount and front mechanism 5 13 Mount the etc 12 onto the existing bracket by pulling the release lever and sliding the guide pins int...

Page 11: ...0 5 14 Install the new escutcheon plate on the trip unit bezel using the supplied 6 32 x 1 2 long flat head screw See figure 20 5 15 Replace the front cover of the breaker the trip unit bezel and install the Plexiglas cover on the escutcheon FIGURE 19 etc 12 INSTALLED ON BRACKET FIGURE 20 ESCUTCHEON PLATE ...

Page 12: ...ing down the unit then re powering it when it is already connected to the jumper Table 2 CT Secondary Ratings Original Trip Unit Breaker Frame Size CT Secondary Rating RMS 9 RMS 9 Epic MicroVersaTrip MicroversaTrip Plus MicroVersaTrip PM 2000A and below 200mA RMS 9 RMS 9 Epic MicroVersaTrip MicroversaTrip Plus MicroVersaTrip PM Above but not including 2000A 400mA 6 3 Table 3 provides a cross refer...

Page 13: ...seconds INT 300 seconds MAX 400 seconds 7 0 Testing 7 1 Conduct a full performance test of the trip unit and breaker Primary injection is strongly recommended for newly retrofitted breakers Refer to the etc 12 Section II manual for detailed test procedures and specifications NOTE MicroVersaTrip MicroVersaTrip Epic MicroVersaTrip RMS 9 MicroVersaTrip Plus and MicroVersaTrip PM are products of Gener...

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