Vertex Marine | Technical Marine Cable Hardware Data

Recent Updates

Allowable Amperage for UL 1426 Boat Cable
When no more than 2 current
	18 AWG	16 AWG	14 AWG	12 AWG	10 AWG	8 AWG	6 AWG	4 AWG	2 AWG	1AWG	1/0AWG	2/0AWG	3/0AWG	4/0 AWG
Outside Engine space	20	25	35	45	60	80	120	160	210	245	285	330	385	445
Inside Engine space	17	21.3	29.8	38.3	51	68	102	136	178.5	208.3	242.3	280.5	327.3	378.3
When 3 current carring coductors are bundled
	18 AWG	16 AWG	14 AWG	12 AWG	10 AWG	8 AWG	6 AWG	4 AWG	2 AWG	1AWG	1/0AWG	2/0AWG	3/0AWG	4/0 AWG
Outside Engine space	14	17.5	24.5	31.5	42	56	84	112	147	171.5	199.5	231	269.5	311.5
Inside Engine space	11.9	14.9	20.8	26.8	35.7	47.6	71.4	95.2	125	145.8	169.6	196.4	229.1	264.8
When 4 to 6 current carring coductors are bundled
	18 AWG	16 AWG	14 AWG	12 AWG	10 AWG	8 AWG	6 AWG	4 AWG	2 AWG	1AWG	1/0AWG	2/0AWG	3/0AWG	4/0 AWG
Outside Engine space	12	15	21	27	36	48	72	96	126	147	171	198	231	267
Inside Engine space	10.2	12.8	17.9	23	30.6	40.8	61.2	81.6	107.1	125	145.4	168.3	196.4	227
When 7 to 24 current carring coductors are bundled
	18 AWG	16 AWG	14 AWG	12 AWG	10 AWG	8 AWG	6 AWG	4 AWG	2 AWG	1AWG	1/0AWG	2/0AWG	3/0AWG	4/0 AWG
Outside Engine space	10	12.5	17.5	22.5	30	40	60	80	105	122.5	142.5	165	192.5	222.5
Inside Engine space	8.5	10.6	14.9	19.1	25.5	34	51	68	89.3	104.1	121.1	140.3	163.6	189.1

Allowable Amperage for class 60 ℃ Shipboard Cable Based on ambient temperature 45 ℃
	1.5mm2	2.5mm2	4mm2	6mm2	10mm2	16mm2	25mm2	35mm2	50mm2	70mm2	95mm2	120mm2	150mm2
Single Core	12	17	22	29	40	54	71	87	105	135	165	190	220
2 Core	10	14	19	25	34	46	60	74	89	115	140	162	187
3 or 4 Core	8	12	15	20	28	38	50	61	74	95	116	133	154

Allowable Amperage for class 70 ℃ Shipboard Cable Based on ambient temperature 45 ℃
	1.5mm2	2.5mm2	4mm2	6mm2	10mm2	16mm2	25mm2	35mm2	50mm2	70mm2	95mm2	120mm2	150mm2
Single Core	15	21	29	37	51	68	90	111	138	171	207	239	275
2 Core	13	18	25	31	43	58	77	94	117	145	176	203	234
3 or 4 Core	11	15	20	26	36	48	63	78	97	120	145	167	193

Allowable Amperage for class 85 ℃ Shipboard Cable Based on ambient temperature 45 ℃
	1.5mm2	2.5mm2	4mm2	6mm2	10mm2	16mm2	25mm2	35mm2	50mm2	70mm2	95mm2	120mm2	150mm2
Single Core	20	28	38	48	67	90	120	145	180	225	275	320	365
2 Core	17	24	32	41	57	77	102	123	153	191	234	272	310
3 or 4 Core	14	20	27	34	47	63	84	102	126	158	193	224	256

Allowable Amperage for class 90 ℃ Shipboard Cable Based on ambient temperature 45 ℃
	1.5mm2	2.5mm2	4mm2	6mm2	10mm2	16mm2	25mm2	35mm2	50mm2	70mm2	95mm2	120mm2	150mm2
Single Core	21	30	40	51	71	95	125	155	190	240	290	340	385
2 Core	18	25	34	43	60	81	105	135	165	200
3 or 4 Core	15	21	29	36	50	67	89	105	135	170	205	240	270