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PowerPact H-, J-, and L-Frame Circuit Breakers
General Information
22
02/2016 © 2011–2016 Schneider Electric
All Rights Reserved
PowerPact H-, J-, and L-frame Circuit Breaker Trip Units
Thermal-Magnetic or Electronic Trip Unit?
Thermal-magnetic trip units (available on H- and J-frame circuit breakers only) protect against
overcurrents and short-circuits using tried and true techniques. For applications requiring installation
optimization and energy efficiency, electronic trip units offering more advanced protection functions
combined with measurements.
Trip units using digital electronics are faster as well as more accurate. Wide setting ranges make
installation upgrades easier. Designed with processing capabilities, Micrologic trip units can provide
measurement information and device operating assistance. With this information, users can avoid or
deal more effectively with disturbances and can play a more active role in system operation. They can
manage the installation, anticipate events and plan any necessary servicing.
Table 12: Micrologic Trip Unit Features
Features
Micrologic Trip Unit (X = Standard Feature, O = Available Option
Standard Ammeter Energy
3.2/3.33.2S/3.3S 5.2A/5.3A 6.2A/6.3A 5.2E/5.3E 6.2E/6.3E
LI X
LSI
1
1
The LSI with 3.2S/3.3S trip units have fixed short time and long time delays.
XX X
LSIG/Ground Fault Trip
2
2
Requires neutral current transformer on three-phase four-wire loads.
XX
Ground-Fault Alarm Trip X X
Current Settings Directly in AmperesXXXXXX
True RMS Sensing XXXXXX
UL Listed XXXXXX
Thermal Imaging XXXXXX
LED for Long-Time Pickup XXXXXX
LED for Long-Time Alarm XXXXXX
LED Green “Ready” Indicator XXXXXX
Up to 12 Alarms Used Together X X X X
Digital Ammeter X X X X
Zone-Selective Interlocking
3
3
ZSI for H/J-frame devices is only OUT. ZSI for L-frame devices is IN and OUT.
XXXX
Communications OOOOOO
LCD Display X X X X
Front Display Module FDM121 O O O O
Advanced User Interface X X X X
Neutral Protection X X X X
Contact Wear Indication
4
4
Indication available using the communication system only.
XXXX
Incremental Fine Tuning of Settings X X X X
Load Profile
4
,
5
5
% of hours in 4 current ranges: 0–49%, 50–79%, 80–89%, and >90% I
n
.
XXXX
Power Measurement XX
Power Quality Measurements XX