LG Electronics 30, 10 user manual Amperage Calculations

LG-10 thru LG-30 - User Manual Electro-Steam Generator Corp.

4.3) AMPERAGE CALCULATIONS

The INPUT VOLTAGE, PHASE, TOTAL POWER RATING, and HEATER VOLTAGE RATING are used to calculate the amperage.

NOTE: 380-425V heaters are not usually rated for 380-425V. They are usually 208-240V heaters that have been re-stamped 380-425V and wired in series.

FORMULAS TO CALCULATE AMPERAGE

THREE PHASE		SINGLE PHASE
208-240V & 440-600V	380-425V	208-240V &	380-425V
	(using 208-240V heaters)	440-600V	(using 208-240V)
			Not possible with
			odd number of
			heaters

DEFINITIONS:
I	= Amperage								VI		= Input Voltage
PT	= Total Power Rating								VH		= Heater Voltage Rating
THREE PHASE AMP DRAW CALCULATIONS (AMPS)
Input Voltage		208	220	230	240	380		400		415		425	440	460	480	550	575	600
LG-10		27.8	29.4	23.1	24.1	16.9		13.4		13.9		14.2	11	11.5	12	8.82	9.22	9.62
LG-15		41.6	36	37.7	39.3	25.4		21.8		22.6		23.2	16.5	17.3	18	13.2	13.8	14.4
LG-20		54.1	46.8	48.9	51.1	33		28.4		29.4		30.1	21.5	22.5	23.5	17.2	18	18.8
LG-25		65.6	69.3	57.6	60.1	39.9		42		34.7		35.5	27.6	28.8	30.1	22.1	23.1	24.1
LG-30		81.2	85.9	67.4	70.4	49.4		39.1		40.6		41.5	32.3	33.7	35.2	25.8	27	28.1
SINGLE PHASE AMP DRAW CALCULATIONS (AMPS)
Input Voltage		208	220	230	240	380		400		415		425	440	460	480	550	575	600
LG-10		48.1	50.9	39.9	41.7								19.1	20	20.8	15.3	16	16.7
LG-15		72.1	62.4	65.2	68.1	Not possible with odd							28.6	29.9	31.3	22.9	24	25
LG-20		93.8	81.1	84.8	88.5								37.2	38.9	40.6	29.8	31.1	32.5
							number of heaters
LG-25		114	120	99.8	104								47.7	49.9	52.1	38.2	39.9	41.7
LG-30		141	149	117	122								55.9	58.4	60.9	44.7	46.7	48.8

16 of 33