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Micrologic® Electronic Trip Units

Class 612 / Refer to Catalog 0612CT0101

PowerPact® P- and R-frame molded case circuit breakers may be specified with any of the following Micrologic Electronic Trip Units.

Micrologic (Standard) 3.0 and 5.0 Trip Units

●	True RMS sensing

●	LI, LSI trip configurations

●	Field-interchangeable long-time rating plugs

●	LED long-time pickup indication

●	Test kits available

●	Thermal imaging

Micrologic (Ammeter) 3.0A, 5.0A and 6.0A Trip Units

Includes all features listed for Micrologic standard trip unit, as well as:

●	LSIG trip configurations

●	Digital ammeter—phase and neutral (4-pole only)

●	Phase loading bar graph

●	LED trip indication

●	Zone-selective interlocking (ZSI) (short-time & ground-fault)

●	Optional Modbus® communications—PowerLogic® compatible

Micrologic (Power) 5.0P and 6.0P Trip Units

Power measurement and advanced protection features includes all features listed for Micrologic ammeter trip unit, as well as:

●	LSI trip configuration with programmable ground fault alarm

●	LSIG (Ground-fault trip) with programmable ground fault alarm

●	Incremental “fine tuning” of L, S, I, and G pickup and delay settings

●	LCD dot matrix display and LED trip indication

●	Advanced user interface

●	Advanced protection IDMTL—selectable long-time delay bands

●	Neutral protection

●	Power measurement

●	Contact wear indication

●	Modbus communications—PowerLogic compatible

●	Local and remote settings

Micrologic (Harmonic) 5.0H and 6.0H Trip Units

Power quality measurement and advanced protection features. Includes all features listed for the Micrologic power trip unit, as well as:

●	Enhanced power measurements functions

●	Power quality measurements

Table 7.99:

Micrologic Trip Units   x– Standard Feature       o – Available Option

Features	Standard		Ammeter			Power		Harmonic
	3.0	5.0	3.0A	5.0A	6.0A	5.0P	6.0P	5.0H	6.0H
LI	x		x
LSI (Instantaneous can be turned off)		x		x	x	x	x	x	x
LSIG / Ground-Fault Tripa					x		x		x
Ground-Fault Alarm (No Trip) ab						x		x
Ground-Fault Alarm and Trip a							x		x
Adjustable Rating Plugs	x	x	x	x	x	x	x	x	x
True RMS Sensing	x	x	x	x	x	x	x	x	x
UL Listed	x	x	x	x	x	x	x	x	x
Thermal Imaging	x	x	x	x	x	x	x	x	x
Phase Loading Bar Graph			x	x	x	x	x	x	x
LED for Long-time Pickup	x	x	x	x	x	x	x	x	x
LED for Trip Indication			x	x	x	x	x	x	x
Digital Ammeter			x	x	x	x	x	x	x
Zone-selective Interlocking			x	x	x	x	x	x	x
Communications			o	o	o	x	x	x	x
LCD Dot Matrix Display						x	x