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Ground Block
EM4254-12EM4250-8HASEM4255-4BOMEM4251-7-SS-OEM4251-7-BOHEM4250-3SSOEM4250-5BOHEM4250-8HEM4204EM4204-6BOHEM4203EM4202EM4201-12SEM4201-5SEM4201EM4200-7-0

Ground Blocks — EM42XX…

Can be mounted in terminals, cabinets, and enclosures to provide a convenient means for connecting ground wires.

Use the drop-down menu below to choose number of positions, material, block dimensions, screw type, and optional mounting screws, or go to the Product Variations tab to find an already configured part number.

If you are interested in the following ground blocks for AT&T, go to the Product Variations tab and find them at the top of the list:

EM4250-5-BOH-NS

EM4251-7-BOH-NS

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Category: .

Additional Information

Number of ground wire positions

3, 4, 5, 6, 7, 8, 12, Other

Block material

360 brass, Aluminum, Brass tin plated, Copper, Copper alloy

Block dimensions

1/2″ x 1/2″, 3/8″ x 1/2″, 3/8″ x 3/4″, 9/16″ x 9/16″, 5/16″ x 7/16″

Screw type

1/4 x 20 brass hex head, 1/4–20 x 7/16 slotted brass hex head screws, 1/4–28 slotted stainless steel oval point screws, 1/4–28 stainless steel recessed Allen head oval point screws, Headless set screws, Hex head, Set screws with Allen head, Stainless steel oval point set screws, Tin-plated brass hex cap

Optional mounting screws

No, Yes

    PROD # Number of ground wire positions Block material Block dimensions Screw type Optional mounting screws
EM4250-5-BOH-NS 5 Brass tin plated 3/8" x 1/2" 1/4 x 20 brass hex head No
EM4251-7-BOH-NS 7 Copper 1/2" x 1/2" 1/4 x 20 brass hex head No
EM4200-7-0 7 Copper 1/2" x 1/2" Set screws with Allen head No
EM4201 3 Copper alloy 3/8" x 1/2" Headless set screws No
EM4201-5S 5 Copper alloy 3/8" x 1/2" Hex head No
EM4201-12S 12 Copper alloy 3/8" x 1/2" Hex head No
EM4202 3 Copper alloy 9/16" x 9/16" Headless set screws No
EM4203 4 Copper alloy 3/8" x 1/2" Headless set screws No
EM4204 4 Copper alloy 3/8" x 3/4" 1/4 x 20 brass hex head No
EM4204-6BOH 6 Copper alloy 3/8" x 3/4" Tin-plated brass hex cap
EM4250-8H 8 Copper alloy 3/8" x 1/2" 1/4 x 20 brass hex head No
EM4250-5BOH 5 Copper alloy 3/8" x 1/2" 1/4–20 x 7/16 slotted brass hex head screws No
EM4251-7-BOH 7 Copper alloy 1/2" x 1/2" 1/4 x 20 brass hex head No
EM4251-7-SS-O 7 Copper 1/2" x 1/2" 1/4–28 stainless steel recessed Allen head oval point screws No
EM4255-4BOM 4 Copper alloy 3/8" x 3/4" 1/4 x 20 brass hex head No
EM4250-8HAS 8 360 brass 3/8" x 3/4" 1/4 x 20 brass hex head No
EM4254-12 12 Aluminum 5/16" x 7/16" 1/4–28 slotted stainless steel oval point screws No
EM4251-7-BOH-MSK 7 Copper alloy 1/2" x 1/2" Brass hex head Yes
EM4250-8H-MSK 8 Copper alloy 3/8" x 1/2" 1/4 x 20 hex cap Yes
EM4201-MSK 3 Copper alloy 3/8" x 1/2" Headless set screws Yes
EM4204-6BOH-MSK 6 Copper alloy 3/8" x 3/4" Tin-plated brass hex cap Yes