Lochinvar SSB-i & s--01 Circuit Breaker And Fused Disconnect Switch Sizes, Breaker or Fuse Size

CIRCUIT BREAKER AND FUSED DISCONNECT SWITCH SIZES

kW	VOLTS	PH	L1	L2	L3	Breaker or Fuse Size	Copper Wire Size	Conduit Size
6	208	1	29	29	—	40	8	1/2”
	208	3	14	25	14	40	8	3/4”
	240	1	25	25	—	40	8	1/2”
	240	3	13	22	13	30	10	1/2”
	480	3	6	11	6	15	14	1/2”
9	208	1	43	43	—	60	6	3/4”
	208	3	22	38	22	50	8	3/4”
	240	1	38	38	—	50	8	1/2”
	240	3	19	33	19	50	8	3/4”
	480	3	9	16	9	20	12	1/2”
12	208	1	58	58	—	90	3	1”
	208	3	33	33	33	50	8	3/4”
	240	1	50	50	—	70	4	1”
	240	3	29	29	29	40	8	3/4”
	480	3	14	14	14	20	12	1/2”
15	208	1	72	72	—	90	3	1”
	208	3	42	42	42	60	6	3/4”
	240	1	63	63	—	90	3	1”
	240	3	36	36	36	50	8	3/4”
	480	3	18	18	18	30	10	1/2”
18	208	1	87	87	—	125	1	1-1/4”
	208	3	48	48	48	60	6	3/4”
	240	1	75	75	—	100	3	1”
	240	3	43	43	43	60	6	3/4”
	480	3	22	22	22	30	10	1/2”
24	208	1	115	115	—	150	1/0	1-1/4”
	208	3	67	67	67	90	3	1-1/4”
	240	1	100	100	—	125	1	1-1/4”
	240	3	58	58	58	90	3	1-1/4”
	480	3	30	30	30	40	8	3/4”
30	208	1	144	144	—	200	3/0	1-1/2”
	208	3	83	83	83	125	3	1-1/2”
	240	1	125	125	—	175	2/0	1-1/2”
	240	3	72	72	72	100	3	1-1/4”
	480	3	36	36	36	50	8	3/4”
36	208	1	173	173	—	225	4/0	2”
	208	3	100	100	100	125	1	1-1/2”
	240	1	150	150	—	200	3/0	1-1/2”
	240	3	87	87	87	125	1	1-1/2”
	480	3	43	43	43	60	6	3/4”
45	208	3	125	125	125	175	2/0	2”
	240	1	188	188	—	250	250 MCM	2”
	240	3	108	108	108	150	1/0	1-1/2”
	480	3	54	54	54	70	4	1”
54	208	3	150	150	150	200	3/0	1-1/2”
	240	3	130	130	130	175	2/0	2”
	480	3	65	65	65	90	3	1-1/4”
58	208	3	162	162	162	225	4/0	2”
	240	3	141	141	141	200	3/0	1-1/2”
	480	3	71	71	71	90	3	1-1/4”

Wire size is based on THHN wire for branch circuit protection at .91 derate factor. Circuit breakers are to be mounted remotely and wired by the contractor. Sizes are based on the NEC table 310-16. Conduit size is based on conductors plus ground wire sizing as per NEC table 250-122.

7