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 | 2/0 AWG to 500 kcmil |
| Breaking Capacity | 25 kA 240V AC 50/60 Hz UL 489, 18 kA 480V AC 50/60 Hz UL 489, 14 kA 600V AC 50/60 Hz UL 489, 20 kA 250V DC UL 489 |
| Breaking Capacity Code | D |
| 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 | Lugs, Line, Load |
| Frame Type | LDL |
| 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 Mode | Unit Mount Lug |
| Mounting Support | Lug |
| 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 |
| Pollution Degree | 3 IEC 60947-1 |
| Power Wire Stripping Length | 1.2", 2.4" |
| Rated Impulse Withstand Voltage | 8 kV |
| Rated Insulation Voltage | 750V |
| Rated Operational Voltage | 600V |
| Rated Service Breaking Capacity | 25 kA @ 220/240V AC @ 50/60 Hz, 18 kA @ 380/440/415V AC @ 50/60 Hz, 14 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 | 50 N-m |
| Trip Unit Name | Micro Logic 3.3 |
| Trip Unit Technology | Electronic, Standard, MicroLogic 3.3, LI |
| Utilisation Category | Category A |
| Voltage | 600V |
| Voltage Type | AC |
| Width | 5.5" |
Shipping Info:
| Ship weight (kg) | 7.68 |
| Ship height (cm) | 33.99 |
| Ship length (cm) | 11 |
| Ship width (cm) | 14 |
| Country of Origin | US |
Product Details:
- Square D LDL36400U31X circuit breaker ideal for protection against current overloads & short circuits in power distribution applications
- Electronic trip unit with MicroLogic 3.3 processor providing both long-time and instantaneous current limiting functions
- Features line & load side lug terminals for eliminating loose connections while accommodating 500 kcmil - 2 AWG aluminium & copper wiring
- Delivers interrupting ratings of 25kA @ 240VAC, 18kA @ 480VAC and 14kA @ 600VAC
- RoHS compliant
Product Variants
| Product | Model | Amps | Number Of Poles | Voltage Type | Frame Type | Voltage | Color | Control Type | Mounting Support | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
LDL36400CU31X | 400A | 3 | AC | LDL | 600V | Black | Toggle | Lug | €6,540.60 | |
![]() |
LDL36600U31X | 600A | 3 | AC | LDL | 600V | Black | Toggle | Lug | €4,958.05 |
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Contact us
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SQUARE D LDL36400U31X Molded Case Circuit Breaker, 3P, 400A, 600V, Feed-Thru
€3,693.25 /unit
