Couplings and Nipples | Columbia-MBF | Electrical Conduit in Canada

Columbia-MBF rigid conduit aluminum fittings are manufactured of 6063 alloy in temper designation T-1.

Corrosion resistant Aluminum
Light weight and easy installation
Low maintenance
Coupling and elbow specifications

Specification Data

Alloy: Columbia-MBF Rigid Aluminum Conduit is manufactured of 6063 alloy in temper designation T-1. The fittings are of the same alloy.

Standards: Columbia-MBF Rigid Aluminum Conduit is certified to Canadian Standards Association Safety Standard CSA C22.2 No.45.2 and is manufactured to ANSI C80.5.

Thread Protectors: Color-Coded end caps keep threads clean and sharp and help provide trade size recognition. Even sizes are blue; 1/2 trade sizes are black; and 1/4 trade sizes are red.

Manufactured in accordance with ANSI C80.5

Aluminum Rigid Conduit (ARC) Couplings

Trade Size	Metric Designator	Nominal O.D. (A)²		Length (B)¹		Threads Per Inch¹	Approximate Weight per 100 Pieces		Standard Package
		in	mm	in	mm		lb	kg
1/2	16	1.078	27.38	1 5/8	41.3	14	6	2.7	100
3/4	21	1.328	33.73	1 41/64	41.7	14	9	4.1	50
1	27	1.562	39.67	1 31/32	50.0	11 1/2	13	5.9	25
1 1/4	35	1.953	49.61	2 1/32	51.6	11 1/2	19	8.6	25
1 1/2	41	2.219	56.36	2 1/16	52.4	11 1/2	23	10.4	25
2	53	2.750	69.85	2 1/8	54.0	11 1/2	35	15.9	15
2 1/2	63	3.281	83.34	3 3/16	81.0	8	68	30.8	8
3	78	3.812	96.84	3 5/16	84.1	8	91	41.3	6
3 1/2	91	4.438	112.71	3 13/32	86.5	8	108	49.0	6
4	103	5.000	127.00	3 33/64	89.3	8	142	64.4	5
5	129	6.219	157.96	3 61/64	100.4	8	242	109.8	1
6	155	7.312	185.74	4 1/4	108.0	8	320	145.2	1
¹Mimimum requirement as per CSA Standard ²For information only, not a requirement as per CSA Standard Sizes 2 1/2 (63) and larger shipped in palletized cartons or bulk. Aluminum elbows also available in the following Degrees (60°, 30°, 22-1/2°, 15° & 11-1/4°)

Aluminum Rigid Conduit (ARC) Nipples

Trade Size	Metric Designator	Length (A)		Total Thread Length (B)¹		Threads Per Inch¹	Approximate Weight per 100 Pieces		Standard Package
		in	mm	in	mm		lb	kg
1/2	16	(Close) 1 1/8	29	0.78	19.8	14	2	0.9	25
1/2	16	1 1/2	38	0.78	19.8	14	3	1.4	25
1/2	16	2	51	0.78	19.8	14	4	1.8	25
1/2	16	2 1/2	64	0.78	19.8	14	5	2.3	25
1/2	16	3	76	0.78	19.8	14	6	2.7	25
1/2	16	3 1/2	89	0.78	19.8	14	8	3.6	25
1/2	16	4	102	0.78	19.8	14	9	4.1	25
1/2	16	5	127	0.78	19.8	14	11	5.0	25
1/2	16	6	152	0.78	19.8	14	13	5.9	25
1/2	16	8	203	0.78	19.8	14	18	8.2	25
1/2	16	10	254	0.78	19.8	14	22	10.0	25
1/2	16	12	305	0.78	19.8	14	27	12.2	25
3/4	21	(Close) 1 3/8	35	0.79	20.1	14	3	1.4	25
3/4	21	1 1/2	38	0.79	20.1	14	3	1.4	25
3/4	21	2	51	0.79	20.1	14	5	2.3	25
3/4	21	2 1/2	64	0.79	20.1	14	6	2.7	25
3/4	21	3	76	0.79	20.1	14	7	3.2	25
3/4	21	3 1/2	89	0.79	20.1	14	9	4.1	25
3/4	21	4	102	0.79	20.1	14	10	4.5	25
3/4	21	5	127	0.79	20.1	14	13	5.9	25
3/4	21	6	152	0.79	20.1	14	18	8.2	25
3/4	21	8	203	0.79	20.1	14	21	9.5	25
3/4	21	10	254	0.79	20.1	14	26	11.8	25
3/4	21	12	305	0.79	20.1	14	32	14.5	25
1	27	(Close) 1 1/2	38	0.98	24.9	11.5	4	1.8	25
1	27	2	51	0.98	24.9	11.5	6	2.7	25
1	27	2.5	64	0.98	24.9	11.5	8	3.6	25
1	27	3	76	0.98	24.9	11.5	10	4.5	25
1	27	3.5	89	0.98	24.9	11.5	12	5.4	25
1	27	4	102	0.98	24.9	11.5	15	6.8	25
1	27	5	127	0.98	24.9	11.5	19	8.6	25
1	27	6	152	0.98	24.9	11.5	23	10.4	25
1	27	8	203	0.98	24.9	11.5	32	14.5	25
1	27	10	254	0.98	24.9	11.5	40	18.1	25
1	27	12	305	0.98	24.9	11.5	49	22.2	25
1.25	35	(Close) 1 5/8	41	1.01	25.7	11.5	6	2.7	25
1.25	35	2	51	1.01	25.7	11.5	8	3.6	25
1.25	35	2.5	64	1.01	25.7	11.5	11	5	25
1.25	35	3	76	1.01	25.7	11.5	14	6.4	25
1.25	35	3.5	89	1.01	25.7	11.5	17	7.7	25
1.25	35	4	102	1.01	25.7	11.5	20	9.1	25
1.25	35	5	127	1.01	25.7	11.5	26	11.8	25
1.25	35	6	152	1.01	25.7	11.5	31	14.1	25
1.25	35	8	203	1.01	25.7	11.5	43	19.5	25
1.25	35	10	254	1.01	25.7	11.5	54	24.5	10
1.25	35	12	305	1.01	25.7	11.5	65	29.5	10
1.5	41	(Close) 1 3/4	44	1.03	26.2	11.5	9	4.1	25
1.5	41	2	51	1.03	26.2	11.5	11	5	25
1.5	41	2.5	64	1.03	26.2	11.5	14	6.4	25
1.5	41	3	76	1.03	26.2	11.5	18	8.2	25
1.5	41	3.5	89	1.03	26.2	11.5	21	9.5	25
1.5	41	4	102	1.03	26.2	11.5	25	11.3	25
1.5	41	6	152	1.03	26.2	11.5	39	17.7	25
1.5	41	10	254	1.03	26.2	11.5	67	30.4	10
2	53	(Close) 2	51	1.06	26.9	11.5	14	6.4	25
2	53	3	76	1.06	26.9	11.5	24	10.9	25
2	53	4	102	1.06	26.9	11.5	33	15	25
2	53	6	152	1.06	26.9	11.5	51	23.1	20
2	53	10	254	1.06	26.9	11.5	89	40.4	10
2.5	63	(Close) 2 3/4	70	1.57	39.9	8	21	9.5	10
2.5	63	3	76	1.57	39.9	8	24	10.9	10
2.5	63	3.5	89	1.57	39.9	8	32	14.5	10
2.5	63	4	102	1.57	39.9	8	39	17.7	10
2.5	63	5	127	1.57	39.9	8	54	24.5	8
2.5	63	6	152	1.57	39.9	8	69	31.3	8
2.5	63	8	203	1.57	39.9	8	99	44.9	8
2.5	63	10	254	1.57	39.9	8	129	58.5	5
2.5	63	12	305	1.57	39.9	8	159	72.1	5
3	78	(Close) 2 5/8	67	1.63	41.4	8	27	12.2	10
3	78	3	76	1.63	41.4	8	34	15.4	10
3	78	3.5	89	1.63	41.4	8	44	20	5
3	78	4	102	1.63	41.4	8	54	24.5	5
3	78	5	127	1.63	41.4	8	73	33.1	5
3	78	6	152	1.63	41.4	8	93	42.2	5
3	78	8	203	1.63	41.4	8	131	59.4	5
3	78	10	254	1.63	41.4	8	170	77.1	5
3	78	12	305	1.63	41.4	8	209	94.8	5
3.5	91	(Close) 2 3/4	70	1.68	42.7	8	33	15	5
3.5	91	4	102	1.68	42.7	8	61	27.7	4
3.5	91	5	127	1.68	42.7	8	84	38.1	4
3.5	91	6	152	1.68	42.7	8	107	48.5	4
3.5	91	8	203	1.68	42.7	8	153	69.4	3
3.5	91	10	254	1.68	42.7	8	199	90.3	3
3.5	91	12	305	1.68	42.7	8	245	111.1	3
4	103	(Close) 2 7/8	73	1.73	43.9	8	39	17.7	5
4	103	4	102	1.73	43.9	8	69	31.3	4
4	103	5	127	1.73	43.9	8	97	44	4
4	103	8	203	1.73	43.9	8	178	80.7	3
4	103	12	305	1.73	43.9	8	287	130.2	3
5	129	5	127	1.84	46.7	8	125	56.7	1
5	129	8	203	1.84	46.7	8	235	106.6	1
5	129	12	305	1.84	46.7	8	382	173.3	1
6	155	5	127	1.95	49.5	8	175	79.4	1
6	155	8	203	1.95	49.5	8	322	146.1	1
6	155	12	305	1.95	49.5	8	517	234.5	1
¹Mimimum requirement as per CSA Standard A tolerance of minus one thread applies to Total Length of Thread

Line Drawings

couplings-line-drawing