Stud Terminal Blocks | McMaster-Carr

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32 Products

Harsh-Environment High-Current Distribution Bars


Stud Terminals 1 Circuit	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	0000000	000000	0000000	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	0000000	00000	0000000	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	0000000	00000	0000000	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	000000	00000	0000000	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	0000000	00000	0000000	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	0000000	00000	0000000	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	0000000	00000	0000000	0000
								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	000000	00000	0000000	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	0000000	00000	0000000	00000
								300V AC 48V DC	545 amp 600 amp	4	3/8"	4	No. 8	7"	2"	2"	No	0.26"	4	CE Marked	000000	000000	0000000	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	000000	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	0000000	00000	———	0

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-Terminal Input Connection

Blocks with a screw 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.

			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
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	0000000	000000
				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	0000000	00000
				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	0000000	00000



						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	—	—	0000000	000000
						350	600V AC/600V DC	2 (14-2/0)	6 (14-4)	5 5/8"	5"	3 15/16"	—	UL Listed, C-UL Listed	—	—	0000000	000000
						510	600V AC/600V DC	2 (6-4/0)	8 (14-2)	5 5/8"	5"	3 15/16"	—	UL Listed, C-UL Listed	—	—	0000000	000000

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	Features		Each
DIN-Rail Mount





				1 Circuit
				200	600V AC/600V DC	1 (14-3/0)	1 (14-3/0)	1/4"	1"	3 1/4"	3 3/16"	UL Listed, CE Marked, C-UL Listed	Detachable Cover	0000000	000000



						2 Circuits
						200	600V AC/600V DC	1 (14-3/0)	1 (14-3/0)	1/4"	2"	3 1/4"	3 3/16"	UL Listed, CE Marked, C-UL Listed	Detachable Cover	0000000	00000



								3 Circuits
								200	600V AC/600V DC	1 (14-3/0)	1 (14-3/0)	1/4"	2 5/8"	3 1/4"	3 3/16"	UL Listed, CE Marked, C-UL Listed	Detachable Cover	0000000	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 Listed, CE Marked, C-UL Listed	Detachable Cover	0000000	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 Listed, CE Marked, C-UL Listed	Detachable Cover	0000000	00000



																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 Listed, CE Marked, C-UL Listed	Detachable Cover	0000000	000000

Distribution Posts

Stack multiple ring or spade terminals on the stud terminal; the current flows through the stacked terminals. The round design saves space.

	Terminals							Mounting Holes
	No. Per Circuit	Size	Voltage, V DC	Lg.	Wd.	Ht.	Mounting Fasteners Included	Dia.	No. of	Certification		Each
Stud Terminals





				1 Circuit
				1	1/4"	48	1 5/8"	13/16"	1 3/8"	No	3/16"	2	CE Marked	000000	000000
				1	3/8"	48	3 5/16"	1 3/4"	2"	No	1/4"	2	CE Marked	000000	00000