Square D LDL36600U33X PowerPact MCCB – 3 Pole – 600A – Unit Mount – Electronic Trip Unit (MicroLogic 3.3S LSI) – Molded Case Circuit Breaker

The Square D LDL36600U33X is a PowerPact L-Frame molded case circuit breaker (MCCB) designed for high-performance industrial power distribution and protection. It is widely used in switchboards, control panels, and electrical enclosures to provide reliable overcurrent protection for heavy-duty three-phase systems. Featuring an advanced MicroLogic 3.3S electronic trip unit, it delivers precise and adjustable protection for demanding industrial applications.

Electrical Ratings

• Frame / Rated Current: 600 A
• Amperage Range: 180–600 A
• Voltage Rating:
  • 240 V AC
  • 480 V AC
  • 600 V AC
  • 250 V DC
• Phase: 3 Phase
• Poles: 3 Pole
• Interrupting Capacity (AIC):
  • 25 kA @ 240 V AC
  • 18 kA @ 480 V AC
  • 14 kA @ 600 V AC
  • 20 kA @ 250 V DC
• Continuous Rating: 80%

Protection and Trip Functions

• Trip Unit Technology: Electronic
• Trip Unit Model: MicroLogic 3.3S
• Protection Functions (LSI):
  • Long-Time Protection (Overload)
  • Short-Time Protection
  • Instantaneous Protection
• Trip Adjustability: Fully adjustable settings
• Sensing: True RMS

Configuration and Function

• Device Type: Molded Case Circuit Breaker (MCCB)
• Series: PowerPact L-Frame (LDL Series)
• Mounting Type: Unit Mount
• Terminal Type: Lug terminals
• Wiring Capacity: (2) 2/0 AWG to 500 kcmil (Al/Cu)
• Application Type: Industrial control panels, switchboards, enclosures
• Optional Accessories: Shunt trip, UV release, alarm switch, motor operator, rotary handle, auxiliary switch, padlock attachment

Mechanical and Physical Characteristics

• Frame Construction: Heavy-duty industrial L-frame design
• Temperature Rating: -25 °C to 70 °C
• HACR rated
• RoHS compliant / Mercury free
• High mechanical durability for continuous industrial use

Standards and Certification

• UL 489
• IEC 60947-2
• NEMA AB1
• CSA C22.2 No. 5
• CE / CSA / UL / IEC / NEMA / CCC / NOM approved
• Manufacturer: Schneider Electric / Square D
• Series: PowerPact LDL

Features

• High-capacity 600A industrial MCCB for distribution systems
• Advanced MicroLogic 3.3S electronic trip unit (LSI protection)
• Fully adjustable protection settings for system flexibility
• High interrupting capacity up to 25 kA @ 240 V AC
• Suitable for switchboards, enclosures, and heavy-duty panels
• True RMS sensing for accurate fault detection
• Supports multiple accessories for advanced control integration
• Robust unit-mount design for secure installation
• Designed for harsh industrial environments
• Long-term reliability in critical power distribution systems

Returns are easy

You may return items within 30 days of delivery for a refund.

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