General Information
The PowerPacT H-, J-, and L-frame circuit breakers are designed to protect electrical systems from damage caused by overloads and short circuits. H- and J-frame circuit breakers are available with either thermal-magnetic or MicroLogic electronic trip units. L-frame circuit breakers are available with MicroLogic electronic trip units only.
H- and J-frame circuit breakers with thermal-magnetic trip units contain individual thermal (overload) and instantaneous (short circuit) sensing elements in each pole. The amperage ratings of the thermal trip elements are calibrated at 104°F (40°C) free air ambient temperature. Per the National Electric Code® (NEC®) and the Canadian Electrical Code, standard circuit breakers may only be applied continuously at up to 80% of their rating. Circuit breakers rated for 100% operation are available but require specially-designed enclosures and 194°F (90°C) rated wire.
Devices with the MicroLogic electronic trip unit provide adjustable protection settings for greater system flexibility. In addition to electronic protection, MicroLogic trip units allow users to monitor both energy and power. Through direct access to in-depth information and networking using open protocols, PowerPacT circuit breakers with MicroLogic trip units let operators optimize the management of their electrical installations. Far more than just a circuit breaker, these devices are a measurement and communication tool ready to meet energy-efficiency needs through optimized power requirements, increased energy availability, and improved installation management.
PowerPacT™ H-, J-, and L-frame will include the industries only LED locator in an MCCB called Visi-Trip. Visi-Trip is designed to provide a visual light alert when a breaker needs to be inspected, increasing safety and saving customers time finding the concern and allowing them to being the troubleshooting process faster.
Applications
PowerPacT H-, J- and L-frame circuit breakers offer high performance and a wide range of interchangeable trip units to protect most applications.
Electronic trip units provide highly accurate protection with wide setting ranges and can integrate measurement, metering and communication functions. They can be combined with the front display module (FDM121) to provide functions similar to a power meter.
Applications
Mission Critical Circuit Breakers
The PowerPacT J- and L-Frame Mission Critical circuit breakers deliver high levels of selective coordination in a flexible design that can be easily configured for a variety of applications. Tested to be selectively coordinated with the QO family of miniature circuit breakers and the ED, EG, and EJ circuit breakers, this solution provides peace of mind when power availability is critical.
An electronic trip unit provides adjustable long-time settings in three sensor sizes, allowing coverage from 70 through 600 A on 120–240, 208Y/120, 240, and 480Y/277 V systems.
Ratings |
Available Configurations |
|
UL 489 Listed CSA Certified Voltage: 480Y/277 V |
|
In addition to unique design attributes, the PowerPacT Mission Critical circuit breakers have also undergone rigorous testing procedures to certify the coordination with downstream circuit breakers— combining innovative engineering with validated test results.
Apply Schneider Electric Mission Critical circuit breakers in emergency power distribution systems, data centers, hospitals, or anywhere continuity of service is desired
Theory of Operation
There are several dynamic forces between the PowerPacT Mission Critical circuit breakers and downstream circuit breakers when a fault occurs downstream of the branch circuit breaker. Many of these events cannot be shown on the trip curve.
The PowerPacT Mission Critical circuit breakers analyze the fault current to make decisions which maximize selectivity with downstream circuit breakers. The trip units deploy a special selectivity delay to allow downstream circuit breakers to clear. However, on very high faults or if the downstream circuit breaker does not trip, the circuit breaker trips the mechanism instantaneously.
The combination of the PowerPacT Mission Critical circuit breaker and downstream circuit breakers shown in the selectivity charts in the instruction bulletin are selective due to the fact that the series impedance and the let-through from the downstream circuit breaker does not produce enough energy to trip the PowerPacT Mission Circuit circuit breaker.
This system maximizes the interaction of the circuit breakers in series to allow selectivity.
Trip Units and Trip Curves
The PowerPacT J- and L-Frame Mission Critical circuit breakers deliver high levels of selective coordination with the QO family of miniature circuit breakers and the ED, EG, and EJ circuit breakers in a flexible design that can be easily configured for a variety of applications. These circuit breaker can be equipped with 3.2-W, 3.2S-W, 5.2A-W, 5.2E-W, 6.2A-W, 3.3S-W, 5.3A-W, 6.3A-2, and 6.3E-2 MicroLogic trip units. See the catalog numbers and references beginning in J-Frame 250 A Mission Critical Electronic Trip UL Rated Circuit Breakers (Three-Pole, 480Y/277 Vac, 50/60 Hz) With Factory-Sealed Trip Unit Suitable for Reverse Connection.
The mission critical trip units have the same settings and trip curves as the standard trip units described in this document.
For more information see the trip unit user guides 48940-310-01 and 48940-312-01 on the Schneider Electric website.
J-frame mission critical circuit breakers are selective with QO or E-frame circuit breakers per the table below when the amperage of the main circuit breaker is at least two times the amperage of the branch circuit breaker.
J-Frame Selectivity with QO and E-Frame Circuit Breakers
Circuit Breaker* |
Voltage |
Current |
One-Line Diagram |
|||
---|---|---|---|---|---|---|
Main |
Branch |
|||||
J–W, 250 A |
QO(B) |
1P, 2P |
10–30 A |
240/120 V |
18 kA |
|
35–60 A |
15 kA |
|||||
70–125 A |
12 kA |
|||||
3P |
10–30 A |
240 V |
15 kA |
|||
35–60 A |
13 kA |
|||||
70–125 A |
10 kA |
|||||
J–W, 250 A |
E-Frame |
1P, 2P, 3P |
15–125 A |
240 V |
18 kA |
|
15–60 A |
480Y/277 V |
10 kA |
||||
70–125 A |
7 kA |
L-frame mission critical circuit breakers are selective with QO-style and E-frame circuit breakers per the table below when the amperage of the main circuit breaker is at least two times greater than the amperage of the branch circuit breaker.
L-Frame Selectivity with QO and E-Frame Circuit Breakers
Circuit Breaker* |
Voltage |
Current |
One-Line Diagram |
||
---|---|---|---|---|---|
Main |
Branch |
||||
L–W, 250 A |
QO(B) |
10–60 A |
240 V |
18 kA |
|
70–125 A |
10 kA |
||||
L–W,
400 A |
QO(B) |
15–150 A |
240 V |
30 kA |
|
L–W,
250 A |
E-Frame |
15–125 A |
240 V |
30 kA |
|
480Y/277 |
30 kA |
Flexible Configurations
The PowerPacT H-, J- and L-frame circuit breakers may be configured with lugs, bus bar connections, rear connections, I-Line, drawout cradle, or plug-in base.
Field Installable Accessories and Trip Units
General Characteristics
Faceplate Label
Codes and Standards
PowerPacT H-, J-, and L-frame circuit breakers, automatic switches and electronic motor circuit protectors are manufactured and tested in accordance with the following standards.
NOTE: Apply circuit breakers according to guidelines detailed in the National Electric Code (NEC) and other local wiring codes.
Codes and Standards
PowerPacT H-, J-, and L-Frame Circuit Breakers |
H-, J-, and L-Frame Switches |
Motor Circuit Protectors |
UL 489* |
UL 489* |
UL 508 |
Vibration
PowerPacT H-, J-, and L-frame devices resist mechanical vibration.
Tests are carried out in compliance with standard UL 489 SA and SB for the levels required by merchant-marine inspection organizations (Veritas®, Lloyd's®, etc.):
PowerPacT H-, J-, and L-frame circuit breaker meet IEC 60068-2-6 for vibration:
— 2.0 to 25.0 Hz and amplitude +/- 1.6 mm
— 25.0 to 100 Hz acceleration +/- 4.0 g
Excessive vibration may cause tripping, breaks in connections or damage to mechanical parts.
Electromagnetic Disturbances
PowerPacT H-, J-, and L-frame devices are protected against:
-
overvoltages caused by circuit switching
-
overvoltages caused by an atmospheric disturbances or by a distribution-system outage (such as from failure due to lightning)
-
devices emitting radio waves (radios, walkie-talkies, radar, etc.)
-
electrostatic discharges produced directly by users
PowerPacT H-, J-, and L-frame devices have successfully passed the electromagnetic-compatibility
tests (EMC) defined by the following international standards:
-
IEC/EN 60947-2: Low-voltage switchgear and controlgear, part 2: Circuit breakers:
— Annex F: Immunity tests for circuit breakers with electronic protection
— Annex B: Immunity tests for residual current protection
-
IEC/EN 61000-4-2: Electrostatic-discharge immunity tests
-
IEC/EN 61000-4-3: Radiated, radio-frequency, electromagnetic-field immunity tests
-
IEC/EN 61000-4-4: Electrical fast transient/burst immunity tests
-
IEC/EN 61000-4-5: Surge immunity tests
-
IEC/EN 61000-4-6: Immunity tests for conducted disturbances induced by radio frequency fields
-
CISPR 11: Limits and methods of measurement of electromagnetic disturbance characteristics of industrial, scientific and medical (ISM) radio-frequency equipment.
These tests ensure that:
-
no nuisance tripping occurs due to electromagnetic disturbances
-
tripping times are respected
Tropicalization
The materials used in PowerPacT circuit breakers will not support the growth of fungus and mold.
PowerPacT circuit breakers have passed the test defined below for extreme atmospheric conditions.
Dry cold and dry heat:
-
IEC 60068–2-1 — Test A: Cold at +55°C
-
IEC 60068-2-2 — Dry Heat at +85°C
Damp heat (tropicalization)
-
IEC 60068-2-30 — damp heat (temperature 55°C and 95% relative humidity)
-
IEC 60068-2-52 — salt mist
Special Ratings
The H-frame and J-frame circuit breakers also comply with the following special ratings:
-
HACR rating
-
SWD switch duty rating (applies only to 15 and 20 A / 277 Vac or less, two- and three-pole)
-
HID high intensity discharge lighting rating (15–50 A)
The L-frame circuit breakers complies with the following special rating:
-
HACR rating
Marine Ratings
UL Marine Listed/CSA Certified Circuit Breakers (UL 489 Supplement SA)
The PowerPacT H- and J-frame circuit breakers with thermal-magnetic trip units with D, G, J and L interruption levels meet the UL 489 Supplement SA requirements for use on vessels of any length under or over 65 ft. (19.8 m). The PowerPacT H-, J-, and L-frame circuit breakers with MicroLogic electronic trip units meet the UL 489 Supplement SA for use on vessels over 65 ft. (19.8 m) in length. Marine circuit breakers must not use aluminum or aluminum alloys for terminal connections and must be calibrated at an ambient temperature of 104°F (40°C). Standard circuit breakers should not be specified or used in the place of marine rated circuit breakers. Circuit breakers can be ordered with the Marine SA listing by adding the suffix “YA” (marine) to the catalog number.
UL Naval Listed/CSA Certified Circuit Breakers (UL 489 Supplement SB)
The PowerPacT H-, J-, and L-frame circuit breakers with MicroLogic trip units with D, G, J and L interruption levels meet the UL 489 Supplement SB requirements for use on naval vessels. These circuit breakers are subject to various vibration tests as described in UL 489 Supplement SB. Naval circuit breakers must not use aluminum or aluminum alloys for terminal connections and must be calibrated at an ambient temperature of 122°F (50°C). Standard circuit breakers should not be specified or used in the place of navel rated circuit breakers. Circuit breakers can be ordered with the Naval SB listing by adding the suffix “YA1” (naval) to the catalog number.
American Bureau of Shipping (ABS)
The PowerPacT H-, J-, and L-Frame circuit breakers are certified to ABS-NVR (American Bureau of Shipping - Naval Vessel Rules), for use on Naval vessels.
UL 489 SC Listed 500 Vdc Circuit Breakers
The UL Listed / CSA Certified thermal-magnetic H-, J-, and L-frame molded case circuit breakers are specifically designed for use on ungrounded dc systems having a maximum short-circuit voltage of 500 Vdc or a maximum floating (unloaded) voltage of 600 Vdc. The circuit breakers are suitable for use only with UPS (uninterruptable power supplies) and ungrounded systems. This two-level voltage rating allows these circuit breakers to be applied to battery sources having a short-circuit availability of 20,000 or 50,000 amperes at 500 Vdc.
These circuit breakers are UL Listed/CSA Certified for the interrupting ratings shown only if applied with three poles connected in series (series connection is external to circuit breaker). See diagram below.
DC Circuit Breaker Caution Labels
DC Molded Case Circuit Breakers—Adjustable Magnetic Trip
Ampere Rating |
Circuit Breaker |
Adjustable Magnetic Trip Range—DC Amperes |
Performance
Level |
|
---|---|---|---|---|
Low |
High |
|||
100 A |
400 |
600 |
20 k AIR |
|
125 A |
400 |
600 |
||
150 A |
400 |
600 |
||
175 A |
400 |
600 |
||
200 A |
500 |
850 |
||
225 A |
500 |
850 |
||
250 A |
500 |
850 |
20 k AIR |
|
300 A |
750 |
1500 |
20 k AIR |
|
350 A |
875 |
1750 |
||
400 A |
1000 |
2000 |
||
450 A |
1125 |
2250 |
||
500 A |
1250 |
2500 |
||
600 A |
1500 |
3000 |
||
700 A |
1750 |
3500 |
||
800 A |
2000 |
4000 |
||
900 A |
2250 |
4500 |
||
1000 A |
2500 |
5000 |
||
1200 A |
3000 |
6000 |
||
100 A |
400 |
600 |
50 k AIR |
|
125 A |
400 |
600 |
||
150 A |
400 |
600 |
||
175 A |
400 |
600 |
||
200 A |
500 |
850 |
||
225 A |
500 |
850 |
||
250 A |
500 |
850 |
||
300 A |
750 |
1500 |
50 k AIR |
|
350 A |
875 |
1750 |
||
400 A |
1000 |
200 |
||
450 A |
1125 |
2250 |
||
500 A |
1250 |
2500 |
||
600 A |
1500 |
3000 |
||
700 A |
1750 |
3500 |
||
800 A |
2000 |
4000 |
||
900 A |
2250 |
4500 |
||
1000 A |
2500 |
5000 |
||
1200 A |
3000 |
6000 |
DC Molded Case Circuit Breakers—Fixed Magnetic Trip
Ampere Rating |
Circuit Breaker |
Fixed Magnetic Trip Range—DC Amperes |
Performance
Level |
|
---|---|---|---|---|
Low |
High |
|||
30 A |
300 |
600 |
20 k AIR |
|
50 A |
300 |
600 |
||
70 A |
300 |
600 |
||
30 A |
300 |
600 |
50 k AIR |
|
50 A |
300 |
600 |
||
70 A |
300 |
600 |
PowerPacT H- and J-Frame Ratings
PowerPacT H- and J-Frame Circuit Breaker Ratings
Circuit Breaker |
150 A H-Frame |
250 A J-Frame |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Circuit Breaker Type |
HD |
HG |
HJ |
HL |
HR |
JD |
JG |
JJ |
JL |
JR |
|
Number of poles* |
2, 3 |
3 |
2, 3 |
3 |
|||||||
Amperage Range (A) |
15–150 |
70–250 |
|||||||||
UL 489 Circuit Breaker Ratings |
|||||||||||
Breaking
Capacity UL/CSA/NOM |
240 Vac |
25 |
65 |
100 |
125 |
200 |
25 |
65 |
100 |
125 |
200 |
480 Vac |
18 |
35 |
65 |
100 |
200 |
18 |
35 |
65 |
100 |
200 |
|
600 Vac |
14 |
18 |
25 |
50 |
100 |
14 |
18 |
25 |
50 |
100 |
|
250 Vdc* |
20 |
20 |
20 |
20 |
— |
20 |
20 |
20 |
20 |
— |
|
— |
20 |
— |
50 |
— |
— |
20 |
— |
— |
50 |
||
IEC 947-2 Circuit Breaker Ratings |
|||||||||||
Ultimate Breaking Capacity (Icu) (kA rms) |
220/240 Vac |
25 |
65 |
100 |
125 |
150 |
25 |
65 |
100 |
125 |
150 |
380/415 Vac |
18 |
35 |
65 |
100 |
125 |
18 |
35 |
65 |
100 |
125 |
|
440/480 Vac |
18 |
35 |
65 |
100 |
125 |
18 |
35 |
65 |
100 |
125 |
|
500/525 Vac |
14 |
18 |
25 |
50 |
75 |
14 |
18 |
25 |
50 |
75 |
|
690 Vac |
— |
— |
— |
— |
20 |
— |
— |
— |
— |
20 |
|
250 Vdc* |
— |
— |
— |
— |
— |
20 |
20 |
20 |
20 |
— |
|
— |
— |
— |
— |
— |
20 |
20 |
20 |
20 |
— |
||
Service Breaking Capacity (Ics) |
% Icu |
100% |
100% |
||||||||
Insulation Voltage |
Ui |
750 V |
750 Vac |
||||||||
Impulse Withstand Voltage |
Uimp |
8 kVac |
8 kVac |
||||||||
Operational Voltage |
Ue |
690 Vac |
690 Vac |
||||||||
Sensor Rating |
In |
150 A |
250 A |
||||||||
Utilization Category |
— |
A |
A |
||||||||
Operations (Open-Close Cycles) |
|||||||||||
Without Current |
4000 |
5000 |
|||||||||
With Current |
4000 |
1000 |
PowerPacT H- and J-Frame Protection and Measurements
Circuit Breaker |
150 A H-Frame |
250 A J-Frame |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Circuit Breaker Type |
HD |
HG |
HJ |
HL |
HR |
JD |
JG |
JJ |
JL |
JR |
|
Number of poles* |
2, 3 |
3 |
2, 3 |
3 |
|||||||
Protection and Measurements |
|||||||||||
Short-circuit Protection |
Magnetic only |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
Overload/Short-circuit Protection |
Thermal-magnetic |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
Electronic |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
|
with neutral protection |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
|
with ground fault protection |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
|
with zone selective interlocking (ZSI)* |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
|
Display / I, V, f, P, E, THD measurements / interrupted-current measurement |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
|
Options |
Front display module (FDM121) |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
Operating assistance |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
|
Counters |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
|
Histories and alarms |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
|
Metering Com |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
|
Device status/control com |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
|
Visi-Trip |
X |
X |
X |
X |
X |
X |
X |
X |
X |
X |
PowerPacT H- and J-Frame Dimensions / Weight / Connections
Circuit Breaker |
150 A H-Frame |
250 A J-Frame |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Circuit Breaker Type |
HD |
HG |
HJ |
HL |
HR |
JD |
JG |
JJ |
JL |
JR |
|
Number of poles* |
2, 3 |
3 |
2, 3 |
3 |
|||||||
Dimensions |
Height |
6.4 (163) |
7.5 (191) |
||||||||
Width |
4.1 (104) |
4.1 (104) |
|||||||||
Depth |
3.4 (86) |
3.4 (86) |
|||||||||
Weight - lb. (Kg) |
4.8 (2.2) |
5.3 (2.4) |
|||||||||
Connections / Terminations |
Unit Mount |
X |
X |
||||||||
I-Line |
X |
X |
|||||||||
Rear Connection |
X |
X |
|||||||||
Plug-In |
X |
X |
|||||||||
Drawout |
X |
X |
|||||||||
Optional Lugs |
X |
X |
PowerPacT L-Frame Ratings
PowerPacT L-Frame Circuit Breaker Ratings
Circuit Breaker |
400 A L-Frame |
600 A L-Frame |
600 A DC L-Frame* |
1200 A |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Circuit Breaker Type |
LG |
LJ |
LL |
LR |
LG |
LJ |
LL |
LR |
LG |
LL |
LG |
LL |
|
Number of Poles |
3, 4 |
3, 4 |
3 |
3 |
4 |
||||||||
Amperage Range (A) |
70–400 |
200–600 |
300–600 |
700–1200 |
|||||||||
UL 489 Circuit Breaker Ratings |
|||||||||||||
Breaking
Capacity UL/CSA/NOM |
240 Vac |
65 |
100 |
125 |
200 |
65 |
100 |
125 |
200 |
— |
— |
— |
— |
480 Vac |
35 |
65 |
100 |
200 |
35 |
65 |
100 |
200 |
— |
— |
— |
— |
|
600 Vac |
18 |
25 |
50 |
100 |
18 |
25 |
50 |
100 |
— |
— |
— |
— |
|
250 Vdc* |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
|
— |
— |
— |
— |
— |
— |
— |
— |
20 |
50 |
20 |
20 |
||
IEC 947-2 Circuit Breaker Ratings |
|||||||||||||
Ultimate Breaking Capacity (Icu) (kA rms) |
220/240 Vac |
65 |
100 |
125 |
150 |
65 |
100 |
125 |
150 |
— |
— |
— |
— |
380/415 Vac |
35 |
65 |
100 |
125 |
35 |
65 |
100 |
125 |
— |
— |
— |
— |
|
440/480 Vac |
35 |
65 |
100 |
125 |
35 |
65 |
100 |
125 |
— |
— |
— |
— |
|
500/525 Vac |
18 |
25 |
50 |
75 |
18 |
25 |
50 |
75* |
— |
— |
— |
— |
|
690 Vac |
— |
— |
— |
20 |
— |
— |
— |
20 |
— |
— |
— |
— |
|
250 Vdc* |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
|
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
||
Service Breaking Capacity (Ics) |
% Icu |
100% |
100% |
— |
— |
— |
— |
||||||
Insulation Voltage |
Ui |
800 Vac |
800 Vac |
— |
— |
— |
— |
||||||
Impulse Withstand Voltage |
Uimp |
8 kVac |
8 kVac |
— |
— |
— |
— |
||||||
Operational Voltage |
Ue |
690 Vac |
690 Vac |
— |
— |
— |
— |
||||||
Sensor Rating |
In |
400 A |
600 A |
— |
— |
— |
— |
||||||
Utilization Category |
A |
A |
— |
— |
— |
— |
|||||||
Operations (Open-Close Cycles) |
|||||||||||||
Without Current |
5000 |
5000 |
— |
— |
— |
||||||||
With Current |
1000 |
1000 |
— |
— |
— |
PowerPacT L-Frame Protection and Measurements
Circuit Breaker |
400 A L-Frame |
600 A L-Frame |
1200 A |
||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Circuit Breaker Type |
LG |
LJ |
LL |
LR |
LG |
LJ |
LL |
LR |
LG |
LL |
|
Number of Poles |
3, 4 |
3, 4 |
4 |
||||||||
Protection and Measurements |
|||||||||||
Short-circuit Protection |
Magnetic only |
X |
X |
X |
X |
X |
X |
X |
X |
— |
— |
Overload/Short-circuit Protection |
Thermal-magnetic |
— |
— |
— |
— |
— |
— |
— |
— |
X |
X |
Electronic |
X |
X |
X |
X |
X |
X |
X |
X |
— |
— |
|
with neutral protection |
X |
X |
X |
X |
X |
X |
X |
X |
— |
— |
|
with ground fault protection |
X |
X |
X |
X |
X |
X |
X |
X |
— |
— |
|
with zone selective interlocking (ZSI)* |
X |
X |
X |
X |
X |
X |
X |
X |
— |
— |
|
Display / I, V, f, P, E, THD Measurements / Interrupted-Current Measurement |
X |
X |
X |
X |
X |
X |
X |
X |
— |
— |
|
Options |
Front display module (FDM121) |
X |
X |
X |
X |
X |
X |
X |
X |
— |
— |
Operating assistance |
X |
X |
X |
X |
X |
X |
X |
X |
— |
— |
|
Counters |
X |
X |
X |
X |
X |
X |
X |
X |
— |
— |
|
Histories and alarms |
X |
X |
X |
X |
X |
X |
X |
X |
— |
— |
|
Metering Com |
X |
X |
X |
X |
X |
X |
X |
X |
— |
— |
|
Device status/control com |
X |
X |
X |
X |
X |
X |
X |
X |
— |
— |
|
Visi-Trip |
Visi-Trip |
X |
X |
X |
X |
X |
X |
X |
X |
— |
— |
PowerPacT L-Frame Circuit Breaker Dimensions / Weight / Connections
Circuit Breaker |
400 A L-Frame |
600 A L-Frame |
1200 A |
||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Circuit Breaker Type |
LG |
LJ |
LL |
LR |
LG |
LJ |
LL |
LR |
LG |
LL |
|
Number of Poles |
3, 4 |
3, 4 |
4 |
||||||||
Dimensions |
Height |
13.38 (340) |
13.38 (340) |
13.38 (340) |
|||||||
Width |
5.51 (140) |
5.51 (140) |
5.51 (140) |
||||||||
Depth |
4.33 (110) |
4.33 (110) |
4.33 (110) |
||||||||
Weight - lb. (Kg) |
13.2 (6.0) |
13.7 (6.2) |
13.7 (6.2) |
||||||||
Connections / Terminations |
Unit Mount |
X |
X |
X |
|||||||
I-Line |
X |
X |
— |
||||||||
Rear Connection |
X |
X |
X* |
||||||||
Plug-In |
X |
X |
— |
||||||||
Drawout |
X |
X |
— |
||||||||
Optional Lugs |
X |
X |
— |
PowerPacT H-, J-, and L-frame Circuit Breaker Trip Units
MicroLogic Trip Unit Features
Features |
MicroLogic Trip Unit |
|||||
Standard |
Ammeter |
Energy |
||||
3.2/3.3 |
3.2S/3.3S |
5.2A/5.3A |
6.2A/6.3A |
5.2E/5.3E |
6.2E/6.3E |
|
LI |
X |
|||||
LSI* |
X |
X |
X |
|||
LSIG/Ground Fault Trip* |
X |
X |
||||
Ground-Fault Alarm Trip |
X |
X |
||||
Current Settings Directly in Amperes |
X |
X |
X |
X |
X |
X |
True RMS Sensing |
X |
X |
X |
X |
X |
X |
UL Listed |
X |
X |
X |
X |
X |
X |
Thermal Imaging |
X |
X |
X |
X |
X |
X |
LED for Long-Time Pickup |
X |
X |
X |
X |
X |
X |
LED for Long-Time Alarm |
X |
X |
X |
X |
X |
X |
LED Green “Ready” Indicator |
X |
X |
X |
X |
X |
X |
Up to 12 Alarms Used Together |
X |
X |
X |
X |
||
Digital Ammeter |
X |
X |
X |
X |
||
Zone-Selective Interlocking* |
X |
X |
X |
X |
||
Communications |
O |
O |
O |
O |
O |
O |
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* |
X |
X |
X |
X |
||
Incremental Fine Tuning of Settings |
X |
X |
X |
X |
||
X |
X |
X |
X |
|||
Power Measurement |
X |
X |
||||
Power Quality Measurements |
X |
X |
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 offer 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.
Accurate Measurements for Complete Protection
PowerPacT H-, J-, and L-frame circuit breakers offer excellent measurement accuracy from 15 amperes on up to the short-circuit currents. This is made possible by a new generation of current transformers combining “iron-core” sensors for self-powered electronics and “air core” sensors (Rogowski coils) for measurements. The protection functions are managed by an ASIC (Application Specific Integrated Circuit) component that is independent of the measurement functions. This independence ensures immunity to conducted and radiated disturbances and increases reliability.
Numerous Security Functions
Torque-limiting screws |
The screws secure the trip unit to the circuit breaker. When the correct tightening torque is reached, the screw heads break off. Optimum tightening avoids any risk of temperature rise. A torque wrench is no longer required. |
Easy and sure changing of trip units |
All trip units are interchangeable, without wiring. A mechanical mismatch-protection system minimizes the possibility of mounting a trip unit on a circuit breaker with a lower rating.* |
“Ready” LED for a continuous self-test |
The LED on the front of the electronic trip units indicates the result of the self-test running continuously on the measurement system and the tripping release. As long as the green LED is flashing, the links between the CTs, the processing electronics and the tripping mechanism are operational. The circuit breaker is ready to protect. A minimum current of 15 to 50 A, depending on the device, is required for this indication function. |
A patented dual adjustment system for protection functions |
Available on MicroLogic 5/6 trip units, the system consists of:
|