Austin Insulators Inc. Manufacturers of RF Insulators and Transformers.

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		Austin Insulators Inc. suppliers of RF insulators and transformers since 1933

Products: Guyed Tower Base Insulator TYPES: A-4197-L A-4722-B Profile Dimensions		Austin Base Insulators for Guyed Radio Towers and Masts TYPES A-4197-L, A-4722-B

Type	A	B	C	D	E	Mast Fixing	Insulator Mounting	Net Weight
A-4197-L	13.5" 343 mm	7" 178 mm	4" 102 mm dia.	7.75" 197 mm dia.	7" 178 mm dia.	3 holes drilled 5/8" (16mm) dia. on 6.5" (165mm) BCD	3 holes drilled 11/16" (18mm) dia. on 5.5 " (140mm) BCD	35 lb 16 kg
A-4722-B	26.5" 673 mm	17.5" 445 mm	6.5" 165 mm dia.	7.875" 200 mm dia.	10" 254 mm dia.	3 holes tapped 5/8" (16mm) dia. 11 TPI on 6.5 " (165mm) BCD	4 holes drilled 3/4" (19mm) dia. on 8" (203mm) BCD	110 lb 50 kg

BCD = Bolt Circle Diameter
All Austin Insulator bases are designed for VLF, LF, and MF use, and are conservatively rated. Choose the unit that will meet your requirements for working download, working uplift, shear and RF operating voltage.
If you have a requirement which we do not seem to meet or you wish us to recommend a suitable insulator, please contact us and supply us with as much relevant information as possible.