c1 drafted · lead nominal 99 PERCENT
Conditions: Maximum (peak) efficiency
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=30.r27h=7bf9799bd66d
review note: possible conflict with c2 (same source; check the conditions)
CPS SCH275KTL-DO/US-800
The CPS SCH275KTL-DO/US-800 is a transformerless string inverter family. Its AC output is rated at 800 Vac and 60 Hz. It accepts up to 1500 V DC input and operates between 500 and 1450 VDC. Maximum AC output current is 198.5 A at 800 Vac. Peak efficiency is 99.0 percent and CEC efficiency is 98.5 percent. Power factor is adjustable to plus or minus 0.8. It runs from -30 °C to 60 °C ambient and derates above 42 °C. Cooling is by variable speed fans. It communicates over Modbus RS-485, Ethernet, CAN and AC-PLC. AC-PLC needs the CPS AC-PLC kit accessory. Remote diagnostics and firmware upgrades use the FlexOM gateway. Alarm CommErr means communication inside the inverter failed, usually because of poor contact at the internal communication terminal blocks. Alarm ExtFanErr points to a blocked, worn-out or poorly connected fan. First wait five minutes, then check the fan blades for foreign objects. If it persists, reboot with the three-phase supply off and call CPS service.
<!-- review notes
- sentence 1: support check: partial - 800 Vac and 60 Hz supported, but transformerless string inverter is not stated in the passages.
- sentence 6: support check: partial - Definition and poor-contact cause are stated, but 'usually' and the internal communication terminal blocks are slightly paraphrased; essentially supported.
- sentence 1: review: partial - The 800 Vac and 60 Hz ratings are cited, but nothing cited says transformerless string inverter family. -->
Claims
efficiency
c2 drafted · lead nominal 98.5 PERCENT
Conditions: CEC weighted efficiency
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=30.r28h=308e98811e53
review note: possible conflict with c1 (same source; check the conditions)
nominal_voltage
c3 drafted · lead nominal 800 V
Conditions: Rated AC output voltage
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=30.r15h=77dfbb5a4343
rated_output_current
Conditions: Maximum AC output current at 800 Vac
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=30.r18h=5dbf98bbf34e
frequency
c5 drafted · lead nominal 60 HZ
Conditions: Rated output frequency
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=30.r19h=978e6a72810c
Conditions: Output frequency range
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=30.r20h=7a301219758d
max_input_voltage
Conditions: Maximum DC input voltage
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=30.r2h=b311604ea759
operating_temperature
c8 drafted · lead -30–60 DEG_C
Conditions: Ambient operating range; output derates above 42 °C
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=30.r33h=a9317be5d2e4
certified_to
c9 drafted · lead UL 1741 SA proposed
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=31.r15h=a18eab499322
c10 drafted · lead UL 1741 SB proposed
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=31.r15h=a18eab499322
c11 drafted · lead IEEE 1547a-2014 proposed
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=31.r15h=a18eab499322
c12 drafted · lead IEEE 1547-2018 proposed
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=31.r15h=a18eab499322
c13 drafted · lead FCC Part 15 proposed
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=31.r15h=a18eab499322
uses_protocol
Modbus over RS-485
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
sec=4.2.5h=4945869bea07
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
sec=4.2.5h=4945869bea07
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
sec=4.2.5h=4945869bea07
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
sec=4.2.5h=4945869bea07
c18 drafted · lead Power line communication
AC-PLC mode needs the CPS AC-PLC kit accessory
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
sec=4.2.5h=4945869bea07
requires
c19 drafted · lead CPS AC-PLC kit proposed
Conditions: Only when AC-PLC communication is used
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
sec=4.2.5h=4945869bea07
implements
c20 drafted · lead Surge protection
Type II surge protection on both DC and AC sides
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=30.r11h=6b685f8dcbea - CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=30.r25h=7a9a3614db00
c21 drafted · lead Remote firmware update
Conditions: With FlexOM gateway
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=31.r6h=a836860653de
compatible_with
c22 drafted · lead CPS FlexOM Gateway
Conditions: Used for remote diagnostics and firmware upgrade
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
tbl=31.r6h=a836860653de
has_hazard
c23 verified · fact Electric shock
- CPS SCH275KTL-DO-US-800 V2 User Manual Rev 1.7
sec=h15h=70edc0df020e
verified by: review-workflowverified on: 2026-10-24
Referenced by
- OND file
related_toc2 - CPS SCH275KTL CommErr
applies_toc7 - CPS SCH275KTL ExtFanErr
applies_toc9 - CPS SCH275KTL Fault0100
applies_toc8 - CPS SCH275KTL Fault0110
applies_toc6 - CPS SCH275KTL Fault0130
applies_toc7 - CPS SCH275KTL Fault0150
applies_toc8 - CPS SCH275KTL Fault0020
applies_toc8 - CPS SCH275KTL Fault0060
applies_toc9 - CPS SCH275KTL Fault0090
applies_toc9 - CPS SCH275KTL GFCIErr
applies_toc9 - CPS SCH275KTL GridF.OutLim
applies_toc8 - CPS SCH275KTL GridV.OutLim
applies_toc8 - CPS SCH275KTL IntFanErr
applies_toc10 - CPS SCH275KTL IsolationErr
applies_toc9 - CPS SCH275KTL Protect0100
applies_toc10 - CPS SCH275KTL Protect0110
applies_toc8 - CPS SCH275KTL Protect0150
applies_toc9 - CPS SCH275KTL Protect0170
applies_toc6 - CPS SCH275KTL Protect0180
applies_toc8 - CPS SCH275KTL Protect0020
applies_toc9 - CPS SCH275KTL Protect0230
applies_toc8 - CPS SCH275KTL Protect0030
applies_toc9 - CPS SCH275KTL Protect0070
applies_toc6 - CPS SCH275KTL Protect0090
applies_toc9 - CPS SCH275KTL PVVoltOver
applies_toc8 - CPS SCH275KTL TempOver
applies_toc10 - CPS SCH275KTL Warn0100
applies_toc6 - CPS SCH275KTL Warn0030
applies_toc6 - CPS SCH275KTL Warn0040
applies_toc6 - CPS SCH275KTL Warn0050
applies_toc8