Bonding and Grounding - Communication (CA12005E)

Ground Rod Clamps

GROUND ROD CLAMPS AND CLOSURE A cast silicon bronze clamp for use on 1⁄2"–5⁄8" ground rods. Features • Swivel design (EM-4DBs) or removable bolt designs allow installation anywhere on a ground rod, above or below an existing clamp. • One size fits all variations of 1⁄2"–5⁄8" copper clad and galvanized ground rods. • Foolproof installation—optional torque shear heads breakaway at a predetermined torque to prevent over- or undertorquing. • No loosening of bolts—nylon lock mechanism maintains constant tension. • Quick installation—“V”-shaped halves keep wire automatically centered on ground rod. • Low resistance—wire comes in direct contact with ground rod, making best possible connection. • No reversing necessary—design fits tightly on small size • 1⁄2" rods, does not bottom out. • Optional grease-filled closure helps prevent corrosion. • Accommodates #12–#6 AWG solid ground wires.

Suitable for Direct Burial

EM-4DB-01 installed under existing ground rod clamp

At a glance . . .

PART NUMBER

GROUND ROD

WIRE SIZE

DISTINGUISHING FEATURE

LISTING

EM-4DB

#12–6 sol.

5⁄8" & 1⁄2"

Swivel unit

cULus, RUS

GROUNDING

BONDING &

EM-4DB-01

#12–6 sol.

5⁄8" & 1⁄2"

Swivel unit, Torque shear heads, Anti-loosening

cULus, RUS

EM-4DB-02

#12–6 sol.

5⁄8" & 1⁄2"

Swivel unit, 1⁄2" torque shear heads, Anti-loosening

cULus, RUS

EM-4DB-02NB

#12–6 sol.

5⁄8" & 1⁄2"

Swivel unit, 1⁄2" hex heads Swivel unit, Torque shear heads, Anti-loosening, Removable

EM-4DBBR

#12–6 sol.

5⁄8" & 1⁄2"

cULus, RUS

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

Page G73 | August 2022