ABB XT5 600A 3P Molded Case Circuit Breaker – XT5 Series – Electronic LSI Trip – 35kA @ 480V

The ABB XT5 600A MCCB is engineered for high-performance power distribution in demanding industrial and marine environments. As part of the SACE Tmax XT5 series, this 3-pole breaker utilizes an advanced electronic trip unit with LSI functionality, delivering precise and adjustable protection against overloads and short circuits.

Designed for unit-mount applications, it integrates seamlessly into ABB ReliaGear neXT panelboards, SB switchboards, and SACE Tmax XT enclosures. With retrofit capability, it also serves as a modern replacement for legacy Tmax T5 and Spectra series breakers. The breaker features true RMS sensing for accurate current measurement and a trip-free mechanism to enhance operational safety.

Voltage and Rating

• Current Rating: 600 A
• Amperage Range: 240–600 A
• Voltage Rating: 600 VAC
• AIC Rating:
  • 65kA @ 240VAC
  • 35kA @ 480VAC
  • 18kA @ 600VAC

Key Specifications

• Device Type: Molded Case Circuit Breaker (MCCB)
• Series: XT5 (SACE Tmax XT5)
• Number of Poles: 3-Pole
• Phase: 3 Phase
• Trip Technology: Electronic Trip
• Trip Function Code: LSI
• Trip Functions: Long-Time, Short-Time, Instantaneous
• Trip Adjustability: Fully Adjustable
• Mounting Style: Unit Mount
• Terminal Type: Lugs

Technical Specifications

• Wire Gauge: 2x 2/0 AWG – 500 kcmil
• Max Wire Size: 500 kcmil
• Min Wire Size: 2/0 AWG
• Temperature Rating: -25°C to 70°C

Features

• Electronic LSI Trip Unit with Adjustable Protection
• True RMS Sensing for Accurate Monitoring
• Trip-Free Mechanism for Enhanced Safety
• 100% Rated for Continuous Operation
• HACR Rated and Suitable for Harsh Environments
• Retrofit Compatible with Legacy Tmax T5 & Spectra Breakers

Returns are easy

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

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My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.