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The Southwire 321M is a Topaz 1/2 inch metallic insulated grounding bushing used for grounding and protecting conductors where they pass through knockout holes. The bushing provides insulated metallic protection at panel or enclosure knockouts and is offered as single units or in case quantities. It is intended for electrical grounding and conductor protection applications requiring a 1/2 inch knockout interface.
1/2 inch metallic insulated grounding bushing for grounding and knockout conductor protection; Topaz series; sold single or by case.
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