White Electric | Standard Series, Flush Switch, 3 Gang, 250VAC, 10A, Architrave

Issue:
Why is the display blank on the trip unit?

Product Line:
Powerpact P frame, Powerpact R Frame, Masterpact NT, Masterpact NW

Resolution:
The LCD display on a Micrologic P or H trip unit will be blank unless the trip unit is energized.  Energization requires one of the following sets of conditions:

1. The trip unit is energized by an external 24 Vdc applied to terminals F1-F2 (F1 negative-F2 positive).  See attachment for location of terminals.
2. The trip unit is energized by an FFTK or HHTK test kit
3. There is at least 100 V between two phases, AND the load reaches approximately 20% of the breaker's rated current.

• Note that the display will not power up with primary injection testing unless one of the conditions in bullet 1 above is met.
• Note that Ammeter trip units do not require external power and the display will come on with sufficient current flow alone.

See the following bulletins for more information on these trip units.
 

Product Line:
Circuit Breakers

Resolution:
Following are the catalog numbers for Micrologic Trip Units used in PowerPact™ M, P, R, and Masterpact NT and NW circuit breakers.
 

Model	Protection	Cat. #
2.0 (IEC only)	LSO	S132R
3.0 (UL/ANSI only)	LI	S131A
5.0	LSI	S133A
2.0A (IEC only)	LSO	S142R
3.0A (UL/ANSI only)	LI	S141A
5.0A	LSI	S143A
6.0A	LSIG	S144A
5.0P	LSI	S163A
6.0P	LSIG	S164A
5.0H	LSI	S173A
6.0H	LSIG	S174A

For help with Micrologic trip units and modbus communications for Masterpact and PowerPact™ P and R circuit breakers, consult instruction manuals:
PowerPact™ P, R, and Masterpact NW, NT Micrologic™ types 2.0, 3.0 and 5.0 Trip Units, see 48049-207-05
PowerPact™ P, R, and Masterpact NW, NT Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Trip Units, see 48049-136-05
PowerPact™ P, R, and Masterpact NW, NT Micrologic™ 5.0P and 6.0P Trip Units, see 48049-137-05
PowerPact™ P, R, and Masterpact NW, NT Micrologic™ 5.0H and 6.0H Trip Units, see 48049-330-03

The following video demonstrates how to install and remove a Micrologic Trip Unit from a PowerPact™ P-Frame Molded Case Circuit Breaker:

 

Unfortunately there is no mounting block for this product.

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