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230 VOLT 3 PHASE ( 240 VOLT CIRCUIT )
MORE FORMULAS		WITHOUT OVERLOAD RELAYS		WITH OVERLOAD RELAYS
MOTOR HP	FULL LOAD AMPS	S.F.=1.15 OR MORE TEMP. RISE NOT OVER 40ºC	S.F.= LESS THAN 1.15 OR TEMP. RISE MORE THAN 40ºC	S.F.=1.15 OR MORE TEMP. RISE NOT OVER 40ºC	S.F.= LESS THAN 1.15 OR TEMP. RISE MORE THAN 40ºC	SWITCH OR FUSE CLIP RATING
1/2	2.5	2 1/2	2 1/4	2 1/2	2 1/2	30
3/4	2.8	3 1/2	3 2/10	3 1/2	3 1/2	30
1	3.6	4 1/2	4	4 1/2	4 1/2	30
1 1/2	5.2	6 1/4	5 6/10	7	6	30
2	6.8	8	7 1/2	9	8	30
3	9.6	12	10	12	12	30
5	15.2	17 1/2	17 1/2	20	17 1/2	30
7 1/2	22	25	25	30	30	30
10	28	35	30	35	35	60
15	42	50	45	60	50	60
20	54	60-	60-	70	70	100
25	68	80	75	90	80	100
30	80	100	90	100	100	100
40	104	125	110	150	125	200
50	130	150	150	175	150	200
75	192	225	200*	250	225	400
100	248	300	250	350	300	400
125	312	350	350	400	400	400
150	360	450	400*	450	450	600
200	480	600	500	600	600	600
480 VOLT 3 PHASE ( 480 VOLT CIRCUIT )
MORE FORMULAS		WITHOUT OVERLOAD RELAYS		WITH OVERLOAD RELAYS
MOTOR HP	FULL LOAD AMPS	S.F.=1.15 OR MORE TEMP. RISE NOT OVER 40ºC	S.F.= LESS THAN 1.15 OR TEMP. RISE MORE THAN 40ºC	S.F.=1.15 OR MORE TEMP. RISE NOT OVER 40ºC	S.F.= LESS THAN 1.15 OR TEMP. RISE MORE THAN 40ºC	SWITCH OR FUSE CLIP RATING
1/2	1	1 1/4	1 1/8	1 1/4	1 1/4	30
3/4	1.4	1 6/10	1 6/10	1 8/10	1 8/10	30
1	1.8	2 1/4	2	2 1/4	2 1/4	30
1 1/2	2.6	3 2/10	2 6/10	3 1/2	3	30
2	3.4	4	3 1/2	4 1/2	4	30
3	4.8	5 6/10	5	6	5 6/10	30
5	7.6	9	8	10	9	30
7 1/2	11	12	12	15	15	30
10	14	17 1/2	15	17 1/2	17 1/2	30
15	21	25	20	30	25	30
20	27	30*	30*	35	35	60
25	34	40	35	45	40	60
30	40	50	45	50	50	60
40	52	60*	60*	70	60*	100
50	65	80	70	90	75	100
60	77	90	80	100	90	100
75	96	110	110	125	125	200
100	124	150	125	175	150	200
125	158	175	175	200	200	200
150	180	225	200*	225	225	400
200	240	300	250	300	300	400

* FUSE REDUCERS REQUIRED

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