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INVERTER CALCULATIONS EACH INVERTER HAS THE FOLLOWING VALUES WHICH ARE CALCULATED FOLLOWING THESE FORMULAS: INVERTER X: •MAX DC CIRCUIT CURRENT = (OPTIMIZER MAX OUTPUT CURRENT) •MAX AC OUTPUT CURRENT = (MAX INVERTER OUTPUT) •OCPD NEEDED = (MAX AC OUTPUT CURRENT) X 1.25 •SYSTEM CHARACTERISTICS: •OPERATING VOLTAGE = INVERTER FIXED STRING VOLTAGE •MAX OPEN CIRCUIT VOLTAGE = MAX INVERTER SYSTEM VOLTAGE •OPERATING CURRENT = ((MODULE MAX WATTAGE) X (MODULE COUNT)) / OPERATING VOLTAGE •SHORT CIRCUIT CURRENT = (OPTMIZER MAX OUTPUT CURRENT) X (# STRINGS) INVERTER SE10000H-USMN •MAX DC CIRCUIT CURRENT = 15.0A •MAX AC OUTPUT CURRENT = 42A •OCPD NEEDED =60A •SYSTEM CHARACTERISTICS: •OPERATING VOLTAGE = 380V •MAX OPEN CIRCUIT VOLTAGE = 480V •OPERATING CURRENT = 36.24A •SHORT CIRCUIT CURRENT = 45.0A INVERTER OVERCURRENT PROTECTION: (INVERTER(S) MAX COMBINED CURRENT) X (CONTINOUS LOAD) = 96 A X 1.25+ 60 = 180 A → 100 A OVERCURRENT USING PCS ALLOWABLE BACKFEED: MAX ALLOWED TOTAL GENERATION BACKFEED OCPD = MAIN BREAKER RATING = 100 A 100 A ≤ 100 A → INTERCONNECTION MEETS CEC 2022 705.13 REQUIREMENTS WIRE CALCULATIONS WIRE AMPACITY CALCULATED FROM 310.15(B)(16) & (17) AS APPROPRIATE WITH AMBIENT TEMPERATURE CALCULATIONS FROM 310.15(B)(3)(C) AND RACEWAY FILL ADJUSTMENTS FROM 310.15(B)(3)(A). CONDUIT ON THE ROOF SHALL BE INSTALLED NO LESS THAN 1" ABOVE THE ROOF DECK. PV CIRCUIT CONDUCTOR AMPACITY IS CONSTRAINED USING THE 75°C COLUMN WITH THE CONTINUOUS DUTY UPRATING OR THE 90°C COLUMN WITH THE RELEVANT AMBIENT TEMPERATURE AND RACEWAY FILL ADJUSTMENTS WITHOUT THE CONTINUOUS DUTY UPRATING PER 690.8(B), WHICHEVER IS THE LOWER VALUE WILL GOVERN CONDUCTOR SIZING. NON-PV CIRCUIT CONDUCTORS USE THE AMPACITY IN THE 75°C COLUMN OR THE 90°C COLUMN WITH THE RELEVANT AMBIENT TEMPERATURE AND RACEWAY FILL ADJUSTMENTS, WHICHEVER IS LESS (110.14(C) & 310.15(A)(2)). THE RATING OF THE CONDUCTOR AFTER ADJUSTMENTS SHALL BE GREATER THAN, OR EQUAL TO, THE CONTINUOUS DUTY UPRATED CURRENT. CALC EX: WIRE AMPACITY X AMBIENT TEMP. CORR. FACTOR X CONDUIT FILL ADJ. FACTOR >= OUTPUT CURRENT •TAG 1: INVERTER INPUT: 10 AWG RATED 35.0A, 35.0A >= 18.75A •TAG 2: INVERTER INPUT: 10 AWG RATED 35.0A, 29.12A >= 18.75A •TAG 3: INVERTER OUTPUT: 6 AWG RATED 65.0A, 65.0A >= 60A •TAG 4: BATTERY OUTPUT: 6 AWG RATED 85.0A, 85.0A >= 60.0A •TAG 5: BATTERY COMBINER OUTPUT: 1 AWG RATED 130.0A, 130.0A >= 125.0A •TAG 6: AGATE OUTPUT: 1 AWG RATED 100.0A, 100.0A >= 100.0A PAGE REV: B 9/15/2025 JUAN BELTRAN 2502 S ARTESIA ST, SANTA ANA, CA, 92704 PROJECT NUMBER: 109R-502BELT PR-3004162307 SHEET DESIGNER: PRAVEEN CUSTOMER RESIDENCE: TEL. (657) 272-3868 APN: 412-391-11 (415) 580-6920 ex3 PV-4.2 #ESTAMP#SSTAMP 2500 WHITE RD. SUITE A, IRVINE CA 92614 PHONE 805.540.7603 FAX 949.215.7778 CA CL #750184 GILBERT CORREIA, C10, C46 ELECTRICAL CALCSB B