GPO3 Fiberglass Angles | McMaster-Carr

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49 Products

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Compare our offering of composites to find the right material for you.

Arc-Resistant GPO3 Fiberglass 90° Angles

Because these GPO3 fiberglass 90° angles are arc and track resistant, they are often used for electrical applications in humid environments. They offer better electrical insulation properties than FRP fiberglass. Made of fiberglass-reinforced polyester, they're also called polyester-grade industrial laminate.

	Outside				Inside									3 ft. Long		5 ft. Long		6 ft. Long
	Wd.	Wd. Tolerance	Ht.	Ht. Tolerance	Wd.	Ht.	Straightness Tolerance	Color	Temp. Range, ° F	Tensile Strength, psi	Impact Strength, ft·lbf/in	Hardness	For Use Outdoors		Each		Each		Each
UL 94 V-0







				1/8" Thick Wall (-0.020" to 0.020")

				1"	-0.062" to 0.062"	1"	-0.062" to 0.062"	7/8"	7/8"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8522K735	000000	———	0


				1 1/4"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	1 1/8"	1 1/8"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8522K736	00000	———	0
				1 1/2"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	1 3/8"	1 3/8"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8522K737	00000	———	0




						3/16" Thick Wall (-0.020" to 0.020")

						1 1/4"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	1 1/16"	1 1/16"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8522K738	00000	———	0


						1 1/2"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	1 5/16"	1 5/16"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8522K739	00000	———	0
						2"	-0.062" to 0.062"	2"	-0.062" to 0.062"	1 13/16"	1 13/16"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8522K742	000000	———	0
						2 1/4"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	2 1/16"	1 5/16"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8522K743	00000	———	0
						2 1/2"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	2 5/16"	1 1/16"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8522K744	000000	———	0
						2 9/16"	-0.063" to 0.063"	1 5/8"	-0.032" to 0.032"	2 3/8"	1 7/16"	0.050"/1 ft.	Red	—	15,000 to 17,000	8.2 to 12	Barcol 40 (Hard)	No	8522K13	000000	———	0	8522K23	000000
						4"	-0.063" to 0.063"	1 5/8"	-0.032" to 0.032"	3 13/16"	1 7/16"	0.050"/1 ft.	Red	—	15,000 to 17,000	8.2 to 12	Barcol 40 (Hard)	No	8522K14	00000	———	0	8522K24	000000




								1/4" Thick Wall (-0.020" to 0.020")

								1 1/2"	-0.062" to 0.062"	1 1/2"	-0.062" to 0.062"	1 1/4"	1 1/4"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8522K745	00000	———	0


								2"	-0.063" to 0.063"	2"	-0.032" to 0.032"	1 3/4"	1 3/4"	0.050"/1 ft.	Red	—	15,000 to 17,000	8.2 to 12	Barcol 40 (Hard)	No	8522K15	00000	———	0	8522K25	00000
								2 3/4"	-0.062" to 0.062"	2"	-0.062" to 0.062"	2 1/2"	1 3/4"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8522K746	000000	———	0
								3"	-0.063" to 0.063"	2 3/4"	-0.032" to 0.032"	2 3/4"	2 1/2"	0.050"/1 ft.	Red	—	15,000 to 17,000	8.2 to 12	Barcol 40 (Hard)	No	8522K16	00000	———	0	8522K26	000000
								3"	-0.062" to 0.062"	3"	-0.062" to 0.062"	2 3/4"	2 3/4"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8522K747	000000	———	0




										3/8" Thick Wall (-0.025" to 0.025")

										1 3/4"	-0.062" to 0.062"	2"	-0.062" to 0.062"	1 3/8"	1 5/8"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8522K748	000000	———	0


										3"	-0.062" to 0.062"	3"	-0.062" to 0.062"	2 5/8"	2 5/8"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8522K749	000000	———	0




												1/2" Thick Wall (-0.025" to 0.025")

												6"	-0.062" to 0.062"	3"	-0.062" to 0.062"	5 1/2"	2 1/2"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	———	0	8522K75	000000

Arc-Resistant GPO3 Fiberglass U-Channels

These GPO3 fiberglass U-channels are often used for electrical applications in humid environments. They are arc and track resistant, plus they have better electrical insulation properties than FRP fiberglass. Made of fiberglass-reinforced polyester, they're also called polyester-grade industrial laminate.

	Outside				Inside									3 ft. Long		5 ft. Long		6 ft. Long
	Wd.	Wd. Tolerance	Ht.	Ht. Tolerance	Wd.	Ht.	Straightness Tolerance	Color	Temp. Range, ° F	Tensile Strength, psi	Impact Strength, ft·lbf/in	Hardness	For Use Outdoors		Each		Each		Each
UL 94 V-0







				1/16" Thick Wall (-0.015" to 0.015")

				2 3/16"	-0.062" to 0.062"	3/4"	-0.062" to 0.062"	1 3/4"	11/16"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K311	000000	———	0




						1/8" Thick Wall (-0.025" to 0.025")

						2 9/16"	-0.063" to 0.063"	1 7/32"	-0.032" to 0.032"	2 5/16"	1 3/32"	0.050"/1 ft.	Red	—	10,000 to 15,000	8.2 to 12	Barcol 50 (Hard)	No	8523K11	000000	———	0	8523K21	000000




								1/8" Thick Wall (-0.02" to 0.02")

								2"	-0.062" to 0.062"	9/16"	-0.062" to 0.062"	1 3/4"	7/16"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K32	00000	———	0


								2"	-0.062" to 0.062"	13/16"	-0.062" to 0.062"	1 3/4"	11/16"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K331	00000	———	0
								2 5/16"	-0.062" to 0.062"	3/4"	-0.062" to 0.062"	2 1/16"	5/8"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K341	00000	———	0
								3 19/32"	-0.062" to 0.062"	1 1/8"	-0.062" to 0.062"	3 11/32"	1"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K351	00000	———	0
								4 1/2"	-0.062" to 0.062"	2 1/2"	-0.062" to 0.062"	4 1/4"	2 3/8"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K361	00000	———	0
								9 21/32"	-0.062" to 0.062"	1 5/8"	-0.062" to 0.062"	9 13/32"	1 1/2"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K371	000000	———	0




										5/32" Thick Wall (-0.02" to 0.02")

										5 1/2"	-0.062" to 0.062"	1 1/4"	-0.062" to 0.062"	5 3/16"	1 3/32"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K38	00000	———	0




												3/16" Thick Wall (-0.025" to 0.025")

												3 9/16"	-0.063" to 0.063"	2 9/16"	-0.032" to 0.032"	3 3/16"	2 3/8"	0.050"/1 ft.	Red	—	10,000 to 15,000	8.2 to 12	Barcol 50 (Hard)	No	8523K12	00000	———	0	8523K22	00000


												4 3/4"	-0.063" to 0.063"	1 5/8"	-0.032" to 0.032"	4 3/8"	1 7/16"	0.050"/1 ft.	Red	—	10,000 to 15,000	8.2 to 12	Barcol 50 (Hard)	No	8523K14	00000	———	0	8523K24	00000




														3/16" Thick Wall (-0.02" to 0.02")

														4"	-0.062" to 0.062"	1 3/8"	-0.062" to 0.062"	3 5/8"	1 3/16"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K39	00000	———	0


														8 1/2"	-0.062" to 0.062"	2 11/16"	-0.062" to 0.062"	8 1/8"	2 1/2"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K41	000000	———	0




																1/4" Thick Wall (-0.025" to 0.025")

6 1/2"																-0.040" to 0.040"	2 3/4"	-0.020" to 0.020"	6"	2 1/2"	0.050"/1 ft.	Red	—	10,000 to 15,000	8.2 to 12	Barcol 50 (Hard)	No	8523K16	00000	———	0	8523K26	000000




		1/4" Thick Wall (-0.02" to 0.02")

		2"	-0.062" to 0.062"													1"	-0.062" to 0.062"	1 1/2"	3/4"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K42	00000	———	0


		3"	-0.062" to 0.062"													7/8"	-0.062" to 0.062"	2 1/2"	5/8"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K43	00000	———	0
		3"	-0.062" to 0.062"													1 1/2"	-0.062" to 0.062"	2 1/2"	1 1/4"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K44	00000	———	0
		4"	-0.062" to 0.062"													1 1/8"	-0.062" to 0.062"	3 1/2"	7/8"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K45	000000	———	0
		4 1/2"	-0.062" to 0.062"	2 1/2"												-0.062" to 0.062"	4"	2 1/4"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K46	000000	———	0




				3/8" Thick Wall (-0.02" to 0.02")

				11 9/32"	-0.062" to 0.062"											1 5/8"	-0.032" to 0.032"	10 17/32"	1 1/4"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Rockwell M95 (Hard)	No	———	0	8523K47	000000	———	0

Arc-Resistant GPO3 Fiberglass Hat Channels

Unlike similar U-channels, these GPO3 fiberglass hat channels have flanges for mounting to flat surfaces. Use them to route and insulate wire in humid environments. All of these hat channels are arc and track resistant. They also have better electrical insulation properties than FRP fiberglass. Made of fiberglass-reinforced polyester, they're often called polyester-grade industrial laminate.

	Outside				Inside									5 ft. Long
	Wd.	Wd. Tolerance	Ht.	Ht. Tolerance	Wd.	Ht.	Straightness Tolerance	Color	Temp. Range, ° F	Tensile Strength, psi	Impact Strength, ft·lbf/in	Hardness	For Use Outdoors		Each
UL 94 V-0







				1/8" Thick Wall (-0.02" to 0.02")

				4 19/32"	-0.062" to 0.062"	7/8"	-0.062" to 0.062"	2 5/32"	3/4"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Barcol 50 (Hard)	No	8986N201	000000


				5"	-0.062" to 0.062"	1 3/8"	-0.062" to 0.062"	3"	1 1/4"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Barcol 50 (Hard)	No	8986N202	00000




						3/16" Thick Wall (-0.02" to 0.02")

						9 9/16"	-0.062" to 0.062"	2 3/8"	-0.062" to 0.062"	7 1/16"	2 1/4"	0.050"/1 ft.	Red	-50 to 265	10,000 to 15,000	8.2 to 12	Barcol 50 (Hard)	No	8986N203	000000