Product Specifications:
| Item | Circuit Breaker |
| Ambient Air Temp. For Operation | -13°F to +158°F |
| Ambient Air Temp. For Storage | -58°F to +185°F |
| Amps | 400A |
| Awg Gauge | 3/0 AWG to 500 kcmil |
| Breaking Capacity | 100 kA 240V AC 50/60 Hz UL 489, 65 kA 480V AC 50/60 Hz UL 489, 25 kA 600V AC 50/60 Hz UL 489, 20 kA 250V DC UL 489 |
| Breaking Capacity Code | J |
| Circuit Breaker Application | HACR Rated |
| Color | Black |
| Communication Interface | Modbus, Ethernet |
| Component Type | Circuit Breaker |
| Continuous Amps Rating | 80% |
| Control Type | Toggle |
| Depth | 4.3" |
| Device Application | Distribution |
| Electrical Connection | I-Line Connection, Line, Lugs, Load |
| Frame Type | LJA |
| Height | 13 2/5" |
| Ip Degree Of Protection | IP40 |
| Line Rated Amps | 400A |
| Local Signalling | Ready 1 LED Green, Alarm 1 LED 90% IR Orange, Alarm LED 105% IR Red, Switched Off 1 Trip Indicator Green |
| Long Time Pick-up Adjustment Range | 0.25-1 Times In |
| Mounting Height | 6" |
| Mounting Mode | I Line Bracket |
| Mounting Support | Bracket |
| Network Frequency | 50/60 Hz |
| No. Of Poles | 3 |
| Number Of Poles | 3 |
| Number Of Slots | 5 |
| Operating Altitude | 0 ft. to 6561.68 ft. Without Derating, 5000m With Derating |
| Phase Connection | ABC |
| Pollution Degree | 3 IEC 60947-1 |
| Power Wire Stripping Length | 1.2" |
| Protection Technology | Current Limiter |
| Rated Impulse Withstand Voltage | 8 kV |
| Rated Insulation Voltage | 750V |
| Rated Operational Voltage | 600V |
| Rated Service Breaking Capacity | 65 kA @ 220/240V AC @ 50/60 Hz, 35 kA @ 380/440/415V AC @ 50/60 Hz, 18 kA @ 500/525V AC @ 50/60 Hz, 20 kA @ 250V DC, 20 kA @ 500V DC |
| Returnability | Yes |
| Suitability For Isolation | Yes, IEC 60947-2 |
| Tightening Torque | 442.5 lbf.in. @ 0.1 sq. in. to 0.4 sq. in. @ 3/0 AWG to 500 kcmil |
| Trip Unit Name | Micro Logic 6.3 A |
| Trip Unit Technology | Electronic, Ammeter, MicroLogic 6.3 A, LSIG |
| Utilisation Category | Category A |
| Voltage | 600V |
| Voltage Type | AC |
| Width | 5.5" |
Shipping Info:
| Ship weight (kg) | 7.65 |
| Ship height (cm) | 22.23 |
| Ship length (cm) | 49.53 |
| Ship width (cm) | 27.31 |
| Country of Origin | US |
Product Details:
- Square D LJA36400U44X circuit breaker designed to protect electric circuits during short circuit and overload conditions
- Provides interrupt ratings of 100kA at 240VAC, 65kA at 480VAC and 25kA at 600VAC
- Thermal-magnetic trip ensures instantaneous and time-delayed current limiting protection
- Comes equipped with line and load side lugs capable of accommodating wires (copper / aluminium) of sizes ranging between 500 kcmil & 3 AWG
- Complies with UL, CCC, IEC and CSA standards
Product Variants
| Model | Amps | Phase Connection | Number Of Poles | Color | Control Type | Mounting Height | Mounting Support | Rated Insulation Voltage | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
| LJA36400U31X | 400A | ABC | 3 | Black | Toggle | 6" | Bracket | 750V | €7,227.49 | |
| LJA36250U31X | 250A | ABC | 3 | Black | Toggle | 6" | Bracket | 750V | - | RFQ
|
| LJA36600U33X | 600A | ABC | 3 | Black | Toggle | 6" | Bracket | 750V | €10,782.99 | |
| LJA36600U44X | 600A | ABC | 3 | Black | Toggle | 6" | Bracket | 750V | €13,195.13 | |
| LJA36400CU33X | 400A | ABC | 3 | Black | Toggle | 6" | Bracket | 750V | €11,356.49 | RFQ
|
| LJA36400CU31X | 400A | ABC | 3 | Black | Toggle | 6" | Bracket | 750V | €10,782.99 | |
| LJA36400CU44X | 400A | ABC | 3 | Black | Toggle | 6" | Bracket | 750V | €13,161.82 |
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SQUARE D LJA36400U44X PowerPact L I-Line Circuit Breaker, 3 Poles, 400A, 600VAC
€8,872.22 /unit
