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26.1/28.7**

26.1/28.7 Amp Rating — Check phase ratings on three-phase homes

SolarEdge · Solahart Suncell PV Systems

What does 26.1/28.7** mean?

For certain inverter models (marked with **), phase ratings on three-phase homes must be checked to ensure circuit breaker ratings are larger than the inverter's Maximum AC Fault Current.

Common Causes

  • Circuit breaker rating is too low for the inverter's fault current.
  • Incorrect phase connection in a three-phase system.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Identify inverter models marked with '**' in the AC output current table.

  2. 2

    For these models, verify the circuit breaker ratings on each phase of a three-phase home.

  3. 3

    Ensure circuit breaker ratings are greater than the inverter's Maximum AC Fault Current.

  4. 4

    Consult the inverter's installation manual for specific guidance on three-phase installations.

  5. 5

    Contact a qualified electrician to assess and adjust circuit breaker ratings if necessary.

Browse all codes in this manual (8)
Verified technical data. Last updated: April 2026

Related Faults

AC Cable SizingAC Cable Sizing Alert — Ensure correct cable capacityDC Cable SizingDC Cable Sizing Alert — Use appropriate cable dimensionsEarth Fault AlarmEarth Fault Alarm — System alert for grounding issue
Source: SolarEdge Solahart Suncell PV Systems
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