Relay Racks | McMaster-Carr

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26 Products

Electronics Cabinets


Cabinet Shown with Mounting Bracket and Front Panel	Cabinet Shown with Back Panel


	Back Panel

House and organize up to 800 lbs. of components such as servers, automation controls, and computers. All are compatible with standard 19" wide components.

Back Electrical Enclosure Panels—Back panels cover the entire back of the cabinets and can be removed to perform repairs and maintenance.

	Cabinets										Back Electrical Enclosure Panels
	Ht.	Wd.	Dp.	Environment	Component Mount Type	For Component Wd.	Component Mounting Fasteners Included	Features		Each		Each
Steel



		16"	21"	24 1/2"	Indoor Only	Rails	19"	Yes	Handles Rubber Feet	0000000	0000000	0000000	000000


		19 1/2"	21"	24 1/2"	Indoor Only	Rails	19"	Yes	Handles Rubber Feet	0000000	000000	0000000	00000
		30"	21"	24 1/2"	Indoor Only	Rails	19"	Yes	Handles Rubber Feet	0000000	000000	0000000	000000

Accessories for Electronics Cabinets

Front Electrical Enclosure Panels


Solid Front Panel	Perforated Front Panel

Front Electrical Enclosure Panels—Front panels cover gaps between components.

								Mounting
	Ht.	Wd.	Mounting Hole Ctr.-to-Ctr. Ht.	Mounting Hole Ctr.-to-Ctr. Wd.	Thk.	Ga.	Panel Construction	Fasteners Included	No. of Holes	Hole Ht.	Hole Wd.		Each
Front Electrical Enclosure Panels







				Aluminum

				5 1/4"	19"	2 1/4"	18 1/4"	1/8"	—	Solid	No	4	0.25"	3/8"	0000000	000000


				10 1/2"	19"	—	18 1/4"	1/8"	—	Solid	No	8	0.25"	3/8"	0000000	00000




						Steel

						5 1/4"	19"	2 1/4"	18 1/4"	0.06"	16	Perforated	No	4	0.25"	3/8"	0000000	00000


						10 1/2"	19"	—	18 1/4"	0.06"	16	Perforated	No	4	0.25"	3/8"	0000000	00000

Mounting Brackets

Image of Product. Front orientation. Brackets.

Use mounting brackets to secure lightweight accessories, such as routers, that can’t mount directly to cabinet rails because they’re less than 19" wide. They leave the bottom of accessories exposed, which can make accessing them easier. To attach accessories, add your own mounting holes—these brackets are thin enough to drill through easily.

								Mounting
For No. of Rack Units	Panel Construction	Material	Ht.	Wd.	Dp.	Thk.	Component Mounting Fasteners Included	Fasteners Included	No. of Slots	Slot Ht.	Slot Wd.		Each
2	Solid	Aluminum	3 1/2"	19"	5 1/4"	0.06"	No	No	4	1/4"	1/2"	00000000	000000
3	Solid	Aluminum	5 1/4"	19"	5 1/4"	0.06"	No	No	4	1/4"	1/2"	00000000	00000

Heavy Duty Electronics Cabinets

These cabinets accommodate up to 3,200 lbs. of equipment and have larger interiors than standard electronics cabinets. Use them to house large-size automation controls, data communication, and networking equipment. The front and rear doors are perforated for ventilation and visibility. Both doors are lockable and include two keys. They are keyed alike (all open with the same key). Cabinets have two sets of depth-adjustable mounting rails and an open bottom for cable exit as well as ventilation.

Shelves—Shelves can be mounted at any level.

	Cabinets												Shelves
	Ht.	Wd.	Dp.	Environment	Enclosure Rating	Component Mount Type	For Component Wd.	Features	Certification	Color		Each		Each
Painted Steel



		47 1/4"	31 1/2"	39 1/2"	Indoor Only, Dusty, Oily, Wet	NEMA 12	Rails	19"	Four Leveling Feet Open Bottom Perforated Doors Removable Locking Sidewalls Top-Cable Access Panel	UL Listed	Black	00000000	000000000	00000000	0000000


		78 3/4"	23 5/8"	39 1/2"	Indoor Only, Dusty, Oily, Wet	NEMA 12	Rails	19"	Four Leveling Feet Open Bottom Perforated Doors Removable Locking Sidewalls Top-Cable Access Panel	UL Listed	Black	00000000	00000000	00000000	000000

Freestanding Electronics Racks


Rack Shown with Accessories

Mount servers, automation controls, and computers in these open racks, they make it easy to organize and swap out components. Less bulky than electronics cabinets, you can line up these racks to maximize limited storage space. Each rack has two pairs of grounding studs that create a path for static electricity and protect components from electric shocks.

All are compatible with standard 19" wide components. One rack unit is 1.75" high.

UL 2416—Freestanding electronics racks meet UL 2416 so they're rated for use in server rooms and other IT, AV, and telecom installations.

	Ht.	Wd.	Dp.	Wt. Cap., lb.	Environment	Component Mount Type	Component Mounting Fasteners Included	Component Mounting Hole Thread Size	Color	Certification	Specs. Met		Each
Painted Steel



	24	48"	20 1/2"	15"	1,000	Indoor Only	Rails	No	10-32	Black	UL Listed, C-UL Listed	UL 2416	00000000	0000000


	44	83"	20 1/2"	15"	1,000	Indoor Only	Rails	No	10-32	Black	UL Listed, C-UL Listed	UL 2416	00000000	000000

Accessories for Electronics Racks

Shelves

Attach shelves to store components that can’t mount directly to the rack.

			Overall						Mounting
For Rack Wd.	Finish	Material	Wd.	Dp.	Ht.	Shelf Construction	Shelf Movement	Wt. Cap., lb.	Fasteners Included	No. of Holes	Hole Dia.	Color		Each
20 1/2"	Powder Coated	Steel	19"	15"	5 1/4"	Vented	Adjustable	200	No	8	1/4"	Black	00000000	000000

Mounting Brackets

Use mounting brackets to secure lightweight accessories, such as routers, that can’t mount directly to the rack because they’re less than 19" wide. Unlike shelves, brackets leave the bottom of accessories exposed, which can make accessing them easier. To attach accessories, add your own mounting holes—these brackets are thin enough to drill through easily.

								Mounting
	For No. of Rack Units	Panel Construction	Ht.	Wd.	Dp.	Thk.	Component Mounting Fasteners Included	Fasteners Included	No. of Slots	Slot Ht.	Slot Wd.		Each
Aluminum



		2	Solid	3 1/2"	19"	5 1/4"	0.06"	No	No	4	1/4"	1/2"	00000000	000000


		3	Solid	5 1/4"	19"	5 1/4"	0.06"	No	No	4	1/4"	1/2"	00000000	00000

Dollies

To move and position racks, add dollies.

Wt. Cap., lb.	Finish	Material	Features	Mounting Fasteners Included	Color	Enclosure Rating		Each
1,000	Powder Coated	Steel	Four Lockable Casters	Yes	Black	NEMA 4X	00000000	0000000

Wall-Mount Electronics Racks

Mount standard 19" wide components to these racks. They have a double-hinged sidewall for rear access to components.

	Wd.	Dp.	Wt. Cap., lb.	Environment	Component Mount Type	Component Mounting Fasteners Included	Mounting Fasteners Included	Color		Each
Painted Steel



	7"	19 1/4"	12" to 18"	80	Indoor Only	Rails	Yes	Yes	Black	00000000	0000000


	14"	19 1/4"	12" to 18"	80	Indoor Only	Rails	Yes	Yes	Black	00000000	000000
	21"	19 1/4"	12" to 18"	80	Indoor Only	Rails	Yes	Yes	Black	00000000	000000

Electronics Rack Equipment Installation Supports

Shelve your worries about dropping heavy and valuable rack components, from servers to router shelves. These supports create temporary ledges to let equipment—and your arms—rest as you set up your electronics rack. Each pack includes four supports, one to prop up each corner of the equipment. Simply snap them into the rack’s rail just below the level where you want to mount equipment. When you’re done installing, pop them right out.

For Threaded Holes

		Overall						4 Supports Included			80 Supports Included
	For Hole Thread Size	Ht.	Wd.	Dp.	Wt. Cap. per Four Supports, lb.	Component Mount Type	Color	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
Powder-Coated Steel



		10-32, 12-24, M5, M6	3/4"	1 1/4"	1"	50	Rails	Gray	1	000000000	000000	20	000000000	0000000

For Square Holes

		Overall						4 Supports Included			80 Supports Included
	For Square Hole Size	Ht.	Wd.	Dp.	Wt. Cap. per Four Supports, lb.	Component Mount Type	Color	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
Powder-Coated Steel



		0.375"	3/4"	1 1/4"	1"	60	Rails	Gray	1	000000000	000000	20	000000000	0000000