This CPS family has two transformerless three-phase string inverters, the SCH200K-T-US-480 and the SCH250K-T-US-600. The 480 V model is rated at 200 kW AC and the 600 V model at 250 kW AC, both at 60 Hz. Output derating applies. Peak efficiency is 98.5% for the 200 kW model and 98.8% for the 250 kW model. CEC efficiency is 98.0% and 98.4%. Each unit has a single MPP tracker that operates from 860 to 1450 Vdc and starts up at 900 V. Power factor is adjustable to ±0.8. The DC side has Type II MOV surge protection and either DC switches or a DC disconnect, depending on the wire box type. An arc board provides DC arc detection. If ArcboardErr appears, check the arc board logic connector, run the arc fault test from the app, and replace the arc board or wire box if the alarm comes back. Common faults include CommErr, an internal communication failure, and ExtFanErr or IntFanErr, a cooling fan failure. For either, wait five minutes, check the fans for foreign objects, and reboot by switching off the three-phase supply before calling CPS service. A Modbus register map covers both models and lists firmware V01.15 as applicable.
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manufactured_byc1 drafted · lead CHINT POWER SYSTEMS
Models are branded CPS, and the manual refers fault escalation to CPS Customer Service.
tbl=45.r29 h=ca6adb56f2a4tbl=41.r1 h=77985fbffbd6review note: support check: partial - Passages show CPS branding and CPS Customer Service, but never state the maker is CHINT POWER SYSTEMS.
instance_oftbl=45.r28 h=e44f4493cfe8tbl=45.r13 h=439bb1376480review note: support check: partial - Passages describe a transformerless unit with AC output power, implying an inverter, but never say it is an inverter explicitly.
implementsc3 drafted · lead Maximum power point tracking
Each model has a single MPP tracker.
tbl=45.r6 h=257d6eafbd04review note: support check: partial - Single MPP tracker per model is stated, implying MPPT, though MPPT is not named explicitly.
c4 drafted · lead Constant power factor mode
Power factor above 0.99 by default, adjustable to ±0.8.
tbl=45.r22 h=75c28bcd594fc5 verified · fact Surge protection
DC side uses Type II MOV surge protection.
tbl=45.r11 h=41a053f375abverified by: review-workflowverified on: 2026-10-24
c6 drafted · lead DC arc-fault protection
Arc board, with an arc fault test that can be run from the app Settings menu.
tbl=43.r7 h=29641da34bb0uses_protocolConditions: Modbus map lists firmware V01.15 as applicable for SCH250K-T-US-600 / SCH200K-T-US-480
tbl=2.r1 h=73fa01820a3dreview note: support check: partial - The map lists firmware V01.15 as applicable to both models, but the passage doesn't name Modbus as the protocol.; review: partial - The row only lists applicable models and firmware V01.15; Modbus appears only in the source document's name (a Modbus map), not in the passage text.
rated_powerc8 drafted · lead nominal 200 KiloW
Conditions: CPS SCH200K-T-US-480 rated AC output power; subject to AC output derating
tbl=45.r13 h=439bb1376480review note: possible conflict with c9 (same source; check the conditions)
c9 drafted · lead nominal 250 KiloW
Conditions: CPS SCH250K-T-US-600 rated AC output power; subject to AC output derating
tbl=45.r13 h=439bb1376480review note: possible conflict with c8 (same source; check the conditions)
efficiencyc10 drafted · lead nominal 98.5 PERCENT
Conditions: Maximum (peak) efficiency, CPS SCH200K-T-US-480
tbl=45.r29 h=ca6adb56f2a4review note: possible conflict with c11 (same source; check the conditions); possible conflict with c12 (same source; check the conditions); possible conflict with c13 (same source; check the conditions)
c11 drafted · lead nominal 98.8 PERCENT
Conditions: Maximum (peak) efficiency, CPS SCH250K-T-US-600
tbl=45.r29 h=ca6adb56f2a4review note: possible conflict with c10 (same source; check the conditions); possible conflict with c12 (same source; check the conditions); possible conflict with c13 (same source; check the conditions)
c12 drafted · lead nominal 98 PERCENT
Conditions: CEC efficiency, CPS SCH200K-T-US-480
tbl=45.r30 h=42e3440263d5review note: possible conflict with c10 (same source; check the conditions); possible conflict with c11 (same source; check the conditions); possible conflict with c13 (same source; check the conditions)
c13 drafted · lead nominal 98.4 PERCENT
Conditions: CEC efficiency, CPS SCH250K-T-US-600
tbl=45.r30 h=42e3440263d5review note: possible conflict with c10 (same source; check the conditions); possible conflict with c11 (same source; check the conditions); possible conflict with c12 (same source; check the conditions)
nominal_voltagec14 drafted · lead nominal 480 V
Conditions: Rated AC output voltage, CPS SCH200K-T-US-480
tbl=45.r15 h=068b2178adb6review note: possible conflict with c15 (same source; check the conditions)
c15 drafted · lead nominal 600 V
Conditions: Rated AC output voltage, CPS SCH250K-T-US-600
tbl=45.r15 h=068b2178adb6review note: possible conflict with c14 (same source; check the conditions)
frequencyc16 drafted · lead nominal 60 HZ
Conditions: Rated output frequency, both models
tbl=45.r20 h=c031c9413628Conditions: Output frequency range, both models
tbl=45.r21 h=ffe7c7a222a4related_to c15applies_to c8applies_to c6applies_to c8applies_to c7applies_to c8applies_to c8applies_to c8applies_to c8applies_to c8applies_to c8applies_to c7applies_to c7applies_to c9applies_to c8applies_to c8applies_to c9applies_to c6applies_to c8applies_to c8applies_to c8applies_to c8applies_to c7applies_to c11applies_to c9applies_to c6applies_to c8