Terminal Block Buses | McMaster-Carr

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93 Products

Harsh-Environment High-Current Distribution Bars


Stud Terminals 1 Circuit	Screw Terminals 2 Circuits

Stud and Screw Terminals 1 Circuit	Stud and Screw Terminals 2 Circuits

Protect connections against corrosion. These bars are tin-plated copper and have stainless steel terminals. Also known as bus bars, they serve as connection points between wires with ring or spade terminals. The underside is sealed, so the bars can be safely mounted to conductive surfaces.

Distribution Bar Covers—Distribution bar covers protect the top of the bar and prevent accidental contact with live circuits.

	Distribution Bars															Distribution Bar Covers
			Stud Terminals		Screw Terminals						Mounting Holes
	Voltage	Current	No. per Circuit	Size	No. per Circuit	Size	Lg.	Wd.	Ht.	Mounting Fasteners Included	Dia.	No. of	Certification		Each		Each
Stud Terminals







				1 Circuit

				300V AC 48V DC	100 amp 100 amp	4	No. 10	—	—	4 3/16"	7/8"	1 1/8"	No	0.21"	2	CE Marked	9290T32	000000	9290T27	00000


				300V AC 48V DC	130 amp 150 amp	4	1/4"	—	—	5 7/8"	1 1/4"	1 1/2"	No	0.21"	2	CE Marked	9290T16	00000	9290T21	0000
				300V AC 48V DC	250 amp 250 amp	4	5/16"	—	—	5 7/8"	1 1/2"	1 11/16"	No	0.21"	2	CE Marked	9290T17	00000	9290T29	00000
				300V AC 48V DC	250 amp 250 amp	6	5/16"	—	—	7 3/4"	1 1/2"	1 11/16"	No	0.21"	2	CE Marked	9290T8	000000	9290T28	00000


				Screw Terminals







								2 Circuits

								300V AC 48V DC	100 amp 100 amp	—	—	5	No. 8	3"	1 13/16"	9/16"	No	0.21"	2	CE Marked	9290T12	00000	9290T25	00000


								300V AC 48V DC	100 amp 100 amp	—	—	10	No. 8	5 1/16"	1 13/16"	9/16"	No	0.21"	2	CE Marked	9290T13	00000	9290T26	00000


								Stud and Screw Terminals







												1 Circuit

												300V AC 48V DC	100 amp 100 amp	2	No. 10	5	No. 8	4 3/16"	7/8"	1 1/8"	No	0.21"	2	CE Marked	9290T31	00000	9290T27	0000


												300V AC 48V DC	130 amp 150 amp	2	1/4"	10	No. 8	5 7/8"	1 1/4"	1 1/2"	No	0.21"	2	CE Marked	9290T14	00000	9290T21	0000
												300V AC 48V DC	130 amp 150 amp	2	1/4"	20	No. 8	9 1/8"	1 1/4"	1 1/2"	No	0.21"	2	CE Marked	9290T15	00000	9290T24	00000
												300V AC 48V DC	250 amp 250 amp	2	5/16"	6	No. 10	5 7/8"	1 1/2"	1 11/16"	No	0.21"	2	CE Marked	9290T9	00000	9290T29	00000
												300V AC 48V DC	250 amp 250 amp	2	5/16"	12	No. 10	7 3/4"	1 1/2"	1 11/16"	No	0.21"	2	CE Marked	9290T18	00000	9290T28	00000
												300V AC 48V DC	545 amp 600 amp	4	3/8"	4	No. 8	7"	2"	2"	No	0.26"	4	CE Marked	9290T3	000000	9290T23	00000
												300V AC 48V DC	545 amp 600 amp	8	3/8"	4	No. 8	11 3/8"	2"	2"	No	0.39"	4	CE Marked	9290T7	000000	———	0




														2 Circuits

														300V AC 48V DC	130 amp 150 amp	2	1/4"	5	No. 10	4 7/8"	2 9/16"	1 1/4"	No	0.21"	2	CE Marked	9290T11	00000	———	0

Modular Distribution Bars

Build your own distribution system for neutral and grounding applications by adding terminal blocks to these bars. Slide blocks onto the bar, also known as a bus bar, and then attach mounting brackets to the bar. All wires make contact with the bar, distributing the current among the terminal blocks.

Bars

Lg., m	Wd., mm	Ht., mm		Each
1	6	6	1529T22	000000
1	10	3	1529T21	00000

Brackets


Surface Mount	DIN-Rail Mount

		Mounting Holes
	Mounting Fasteners Included	Dia.	No. of	Pkg. Qty.		Pkg.
Surface Mount	No	0.16"	1	5	1529T31	00000
DIN-Rail Mount for DIN 3 Rails	—	—	—	5	1529T32	00000

Terminal Blocks

Terminal blocks have screw-clamp terminals that secure the wire as well as the block to the bar. Blocks are UL recognized for grounding applications.

Terminal Blocks										Terminal Block Markers
No. of Circuits	For Wire Ga.	Wire Connection	Wd., mm	Lg., mm	Ht., mm	Certification	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
1	22, 20, 18, 16, 14, 12, 10	Screw-Clamp Terminal	7.5	30	23.3	UL Recognized Component	5	1529T11	00000	100	1529T33	00000
1	10, 8, 6, 4	Screw-Clamp Terminal	9.8	36	23.3	UL Recognized Component	5	1529T12	0000	100	1529T34	0000
1	8, 6, 4, 2	Screw-Clamp Terminal	14.5	45	27.3	UL Recognized Component	5	1529T13	00000	100	1529T34	0000

Distribution Blocks

With the help of distribution blocks, you can take a high-current wire from your power source and connect it to one or more electrical devices.

Screw-Clamp Terminal Input Connection


	Terminal Block End Stop

Blocks with a screw-clamp terminal input wire connection have a current rating based on NEC table 310-16 using 75° C copper wire.

Extendable—Extendable blocks attach to each other to create custom-sized distribution blocks.

Jumper Cable Terminal—Blocks with a jumper cable terminal connect to other blocks to increase the number of outputs.

Detachable Cover—Blocks with a detachable cover prevent accidental contact with live circuits.

Quick-Disconnect Load Connection—Blocks with a quick-disconnect load connection let you attach an auxiliary device, such as a horn or light.

End Stops—End stops (sold separately) mount at the end of a group of blocks to prevent movement.

	Distribution Blocks													End Stops
			No. of Connections Per Circuit
	Current per Circuit, amp	Voltage	Input (For Wire Ga.)	Output (For Wire Ga.)	Wd.	Ht.	Dp.	Enclosure Rating	Certification	Flammability Rating	Features		Each		Each
DIN-Rail Mount







				1 Circuit

				80	1,000V AC/1,000V DC	3 (14-4)	4 (14-10)	1 1/8"	2 5/8"	2"	IP20, NEMA 1	UL Recognized Component, CE Marked	—	Jumper Cable Terminal	6367T29	000000	7641K35	00000


				115	600V AC/600V DC	1 (14-2)	1 (14-2)	3/4"	4 1/8"	1 11/16"	IP20	UL Listed, CE Marked	UL 94 V-0	—	6367T25	00000	———	0
				115	600V AC/600V DC	1 (14-2)	4 (14-10)	3/4"	4 1/8"	1 11/16"	IP20	UL Listed, CSA Certified, CE Marked	UL 94 V-0	—	6367T26	00000	———	0
				115	1,000V AC/1,000V DC	1 (8-2)	1 (10-6), 6 (14-6)	1 1/8"	3"	2"	IP20, NEMA 1	UL Recognized Component, CSA Certified, CE Marked	—	Jumper Cable Terminal	6367T31	00000	7641K35	0000
				160	1,000V AC/1,000V DC	1 (6-2/0)	1 (10-6), 6 (14-6)	1 1/8"	3"	2"	IP10, NEMA 1	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Jumper Cable Terminal	6367T51	00000	7641K35	0000
				175	600V AC/600V DC	1 (14-2/0)	1 (14-2/0)	1"	3"	2 9/16"	—	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover	6367T11	00000	———	0
				175	600V AC/600V DC	1 (14-2/0)	4 (14-4)	1"	3"	2 9/16"	—	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover	6367T14	00000	———	0
				175	600V AC/600V DC	1 (14-2/0)	4 (14-4)	1"	3"	2 9/16"	—	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover, Quick-Disconnect Load Connection	6367T22	00000	———	0
				175	600V AC/600V DC	1 (14-2/0)	6 (14-4)	1"	3"	2 9/16"	—	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover	6367T17	00000	———	0
				175	1,000V AC/1,000V DC	2 (6-2/0)	10 (14-6)	1 13/16"	2 7/8"	2 1/16"	IP10, NEMA 1	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Jumper Cable Terminal	6367T52	00000	7641K35	0000
				200	600V AC/600V DC	1 (14-3/0)	4 (14-2)	1 1/8"	3 5/8"	2 11/16"	IP20	UL Listed, CSA Certified, CE Marked	UL 94 V-0	—	6367T27	00000	———	0


				230	1,000V AC/1,000V DC	1 (2-250 MCM)	2 (14-2), 5 (14-6), 4 (14-8)	1 13/16"	3 3/4"	2 3/8"	—	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	—	6367T21	00000	7641K35	0000
				335	600V AC/600V DC	1 (6-400 MCM)	8 (14-2)	2 1/4"	4 3/4"	3 5/16"	IP20	UL Recognized Component, CE Marked	UL 94 V-0	—	6367T28	00000	———	0
				335	1,000V AC/1,000V DC	1 (3/0-400 MCM)	2 (14-2), 5 (14-6), 4 (14-8)	1 13/16"	3 3/4"	2 3/8"	IP10, NEMA 1	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Jumper Cable Terminal	6367T53	00000	7641K35	0000




						2 Circuits

						175	600V AC/600V DC	1 (14-2/0)	1 (14-2/0)	2"	3"	2 9/16"	—	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover	6367T12	00000	———	0


						175	600V AC/600V DC	1 (14-2/0)	4 (14-4)	2"	3"	2 9/16"	—	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover	6367T15	00000	———	0
						175	600V AC/600V DC	1 (14-2/0)	4 (14-4)	2"	3"	2 9/16"	—	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover, Quick-Disconnect Load Connection	6367T23	00000	———	0
						175	600V AC/600V DC	1 (14-2/0)	6 (14-4)	2"	3"	2 9/16"	—	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover	6367T18	00000	———	0




								3 Circuits

								115	1,000V AC/1,000V DC	1 (8-2)	1 (10-6), 6 (14-6)	3 5/16"	3"	2"	IP20, NEMA 1	UL Recognized Component, CE Marked	—	—	6367T33	00000	7641K35	0000


								175	600V AC/600V DC	1 (14-2/0)	1 (14-2/0)	2 5/8"	3"	2 9/16"	—	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover	6367T13	00000	———	0
								175	600V AC/600V DC	1 (14-2/0)	4 (14-4)	2 5/8"	3"	2 9/16"	—	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover	6367T16	00000	———	0
								175	600V AC/600V DC	1 (14-2/0)	4 (14-4)	2 5/8"	3"	2 9/16"	—	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover, Quick-Disconnect Load Connection	6367T24	00000	———	0
								175	600V AC/600V DC	1 (14-2/0)	6 (14-4)	2 5/8"	3"	2 9/16"	—	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover	6367T19	000000	———	0
								175	1,000V AC/1,000V DC	1 (6-2/0)	1 (10-6), 6 (14-6)	3 5/16"	3"	2"	IP10, NEMA 1	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	—	6367T54	00000	7641K35	0000


								Surface Mount







												1 Circuit

335	600V AC/600V DC											2 (14-4/0)	8 (14-2)	2 1/4"	4 3/8"	3 3/16"	IP20	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Extendable	6367T43	00000	———	0


760	600V AC											2 (4-4/0)	8 (14- 2/0)	2 1/2"	4.63"	3 3/8"	IP20	UL Listed, CSA Certified, CE Marked	UL 94 V-0	Extendable	6367T45	000000	———	0
760	600V AC/600V DC	2 (4-4/0)										12 (14-4)	2 1/2"	4.63"	3 3/8"	IP20	UL Listed, CSA Certified, CE Marked	UL 94 V-0	Extendable	6367T41	000000	———	0




		3 Circuits

		335	600V AC/600V DC									1 (14-4/0)	6 (14-2)	5 5/8"	5"	3 15/16"	—	UL Listed, C-UL Listed	—	—	6367T46	000000	———	0


		350	600V AC/600V DC									2 (14-2/0)	6 (14-4)	5 5/8"	5"	3 15/16"	—	UL Listed, C-UL Listed	—	—	6367T44	000000	———	0
		510	600V AC/600V DC									2 (6-4/0)	8 (14-2)	5 5/8"	5"	3 15/16"	—	UL Listed, C-UL Listed	—	—	6367T42	000000	———	0

Stud-Terminal Input Connection

Detachable Cover—Blocks with a detachable cover prevent accidental contact with live circuits.

			No. of Connections Per Circuit
	Current per Circuit, amp	Voltage	Input (For Wire Ga.)	Output (For Wire Ga.)	Terminal Size	Wd.	Ht.	Dp.	Certification	Flammability Rating	Features		Each
DIN-Rail Mount







				1 Circuit

				200	600V AC/600V DC	1 (14-3/0)	1 (14-3/0)	1/4"	1"	3"	2 9/16"	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover	6367T34	000000




						2 Circuits

						200	600V AC/600V DC	1 (14-3/0)	1 (14-3/0)	1/4"	2"	3"	2 9/16"	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover	6367T35	00000




								3 Circuits

								200	600V AC/600V DC	1 (14-3/0)	1 (14-3/0)	1/4"	2 5/8"	3"	2 9/16"	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	Detachable Cover	6367T36	00000


								Surface Mount







												1 Circuit

												310	600V AC/600V DC	1 (14-4/0)	1 (14-4/0)	3/8"	2"	4"	3 1/2"	UL Recognized Component, CSA Certified	UL 94 V-0	Detachable Cover	6367T37	00000




														2 Circuits

														310	600V AC/600V DC	1 (14-4/0)	1 (14-4/0)	3/8"	3 5/8"	4"	3 1/2"	UL Recognized Component, CSA Certified	UL 94 V-0	Detachable Cover	6367T38	000000




																3 Circuits

																310	600V AC/600V DC	1 (14-4/0)	1 (14-4/0)	3/8"	5 3/8"	4"	3 1/2"	UL Recognized Component, CSA Certified	UL 94 V-0	Detachable Cover	6367T39	000000

Bus-Bar Input Connection


	Terminal Block End Stop

Choose blocks with a bus-bar input wire connection to distribute power from flat conductors without the need for an adapter.

End Stops—End stops (sold separately) mount at the end of a group of blocks to prevent movement.

	Distribution Blocks														End Stops
			No. of Connections Per Circuit					Bus Bar, mm
	Current per Circuit, amp	Voltage	Input (For Wire Ga.)	Output (For Wire Ga.)	Wd.	Ht.	Dp.	Wd.	Thk.	Enclosure Rating	Certification	Flammability Rating		Each		Each
DIN-Rail Mount







				1 Circuit

				160	1,000V AC/1,000V DC	1	6 (14-6)	1 1/8"	3"	2"	12	4	IP20, NEMA 1	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	6367T55	000000	7641K35	00000


				420	1,000V AC/1,000V DC	1	2 (14-2), 4 (14-8), 5 (14-6)	1 13/16"	4"	2 3/8"	25	10	IP20, NEMA 1	UL Recognized Component, CSA Certified, CE Marked	UL 94 V-0	6367T56	00000	7641K35	0000

Electronics-Rack-Mount Grounding Bars

These grounding bars fit standard 19” wide electronics racks. Attach multiple grounding wires to create a central grounding point for an electrical network.

No. of Holes	Lg.	Wd.	Thk.	Hole Pattern	Features		Each
8	19 1/4"	1"	1/4"	Linear	Plastic Mounting Brackets, Mounting Hardware	8084T2	0000000

Grounding Bars


	Replacement Mounts

Mount these bars wherever you need to create a central grounding point. They attach to multiple ground wires.

Replacement Mounts—Replacement mounts (sold separately) include mounting brackets, hardware, and insulators.

Grounding Bars												Replacement Mounts
				Hole
Total No. of Holes	Lg.	Wd.	Thk.	Pattern	Dia. (No. of Holes)	Thread Size (No. of Holes)	Material	Features	Certification		Each		Each
5	12"	2"	1/4"	Linear	7/16"	—	Copper	Stainless Steel Mounting Brackets with Plastic Insulators	UL Listed	71375K71	000000	71375K79	000000
6	6"	1"	1/4"	Linear	9/32" (2)	1/4"-20 (1), 10-32 (3)	Copper	Plastic Mounting Brackets	—	71375K69	00000	———	0
6	6"	2"	1/4"	Matrix	7/16"	—	Copper	Stainless Steel Mounting Brackets with Plastic Insulators	—	71375K16	00000	71375K79	00000
9	6"	4"	1/4"	Matrix	7/16"	—	Copper	Stainless Steel Mounting Brackets with Plastic Insulators	—	71375K11	00000	71375K79	00000
11	24"	2"	1/4"	Linear	7/16"	—	Copper	Stainless Steel Mounting Brackets with Plastic Insulators	UL Listed	71375K72	000000	71375K79	00000
14	12"	4"	1/4"	Matrix	7/16"	—	Copper	Stainless Steel Mounting Brackets with Plastic Insulators	UL Listed	71375K73	000000	71375K79	00000
18	12"	2"	1/4"	Matrix	7/16"	—	Copper	Stainless Steel Mounting Brackets with Plastic Insulators	UL Listed	71375K18	00000	71375K79	00000
26	16"	2"	1/4"	Matrix	7/16"	—	Copper	Stainless Steel Mounting Brackets with Plastic Insulators	UL Listed	71375K17	000000	71375K79	00000
27	12"	4"	1/4"	Matrix	7/16"	—	Copper	Stainless Steel Mounting Brackets with Plastic Insulators	UL Listed	71375K12	000000	71375K79	00000
32	24"	4"	1/4"	Matrix	7/16"	—	Copper	Stainless Steel Mounting Brackets with Plastic Insulators	UL Listed	71375K74	000000	71375K79	00000
39	16"	4"	1/4"	Matrix	7/16"	—	Copper	Stainless Steel Mounting Brackets with Plastic Insulators	UL Listed	71375K13	000000	71375K79	00000
51	20"	4"	1/4"	Matrix	7/16"	—	Copper	Stainless Steel Mounting Brackets with Plastic Insulators	UL Listed	71375K14	000000	71375K79	00000
63	24"	4"	1/4"	Matrix	7/16"	—	Copper	Stainless Steel Mounting Brackets with Plastic Insulators	UL Listed	71375K15	000000	71375K79	00000

Distribution Blocks for M12 Connection Cords


4 Outlets	8 Outlets	M12

Connect multiple devices to these distribution blocks to create a network between equipment.

IP65 Enclosure Rating and IP67 Enclosure Rating—Distribution blocks are rated IP67 for protection from dust and submersion and IP65 for protection from low-pressure washdown.

		Socket
	Signal Output	Housing Thread Size	No. of Outlets	No. of Poles	Electrical Connection Coding	Face Dia.	Cord Lg., ft.	Current, amp	Voltage, V DC	AWG	Cord OD	Enclosure Rating	Certification	Temp. Range, ° F	Color		Each
(Internal Thread) with Wire Leads



		PNP	M12	4	4	A	0.3"	16	4	24	22	0.29"	IP65, IP67	UL Listed, C-UL Listed	0 to 155	Gray	2481N5	0000000


		PNP	M12	4	4	A	0.3"	32	4	24	22	0.29"	IP65, IP67	UL Listed, C-UL Listed	0 to 155	Gray	2481N6	000000
		PNP	M12	8	4	A	0.3"	16	4	24	22	0.32"	IP65, IP67	UL Listed, C-UL Listed	0 to 155	Gray	2481N7	000000
		PNP	M12	8	4	A	0.3"	32	4	24	22	0.32"	IP65, IP67	UL Listed, C-UL Listed	0 to 155	Gray	2481N8	000000

Distribution Blocks for M8 Connection Cords


4 Outlets	8 Outlets	M8

Connect multiple devices to these distribution blocks to create a network between equipment.

IP65 Enclosure Rating and IP67 Enclosure Rating—Distribution blocks are rated IP67 for protection from dust and submersion and IP65 for protection from low-pressure washdown.

		Socket
	Signal Output	Housing Thread Size	No. of Outlets	No. of Poles	Face Dia.	Cord Lg., ft.	Current, amp	Voltage, V DC	AWG	Cord OD	Enclosure Rating	Certification	Temp. Range, ° F	Color		Each
(Internal Thread) with Wire Leads



		PNP	M8	4	3	0.2"	16	2	24	22	0.27"	IP65, IP67	UL Listed, C-UL Listed	0 to 175	Gray	2481N1	0000000


		PNP	M8	4	3	0.2"	32	2	24	22	0.27"	IP65, IP67	UL Listed, C-UL Listed	0 to 175	Gray	2481N2	000000
		PNP	M8	8	3	0.2"	16	2	24	22	0.34"	IP65, IP67	UL Listed, C-UL Listed	0 to 175	Gray	2481N3	000000
		PNP	M8	8	3	0.2"	32	2	24	22	0.34"	IP65, IP67	UL Listed, C-UL Listed	0 to 175	Gray	2481N4	000000