Bonding and Grounding - Communication (CA12005E)

Connectors –Ground Blocks

GROUND BLOCKS (CONTINUED)

Ordering information

EM-4251-7-BOH 7-position ground block, 1⁄2" x 1⁄2" with 1⁄4" mounting holes, brass hex head screws with slots.

EM-4251-7-SS-O 7-position ground block, 1⁄2" x 1⁄2", oval point Allen 1⁄4-28

set screws, stainless steel, copper material, no tin,1⁄4" mounting holes . Standard packaging: 250/bx, 46 lb/bx.

LISTED 84D8

EM-4254-12

12-position aluminum ground block with 1⁄4 - 28 slotted stainless steel screws, oval point. #10 mounting holes.

EM-4255-4BOM 4-position ground block, 3⁄8" x 3⁄4" with brass hex head screws. #10–32 mounting holes.

GROUNDING

BONDING &

Please see next page for at-a-glance comparison of all ground blocks.

Other designs are available; call for information, or see next page for specifying custom ground blocks. Add suffix -MSK to include mounting screws. Add suffix -ISK to include isolator mounting screws.

For Electric Motion Company (EMC) part numbers starting with “EM” please contact EMC customer service at 860-379-8515 or cs110@hubbell.com

Page G53 | August 2022