Grounding, Bonding &

Connectivity Products
For Datacom Applications
Grounding, Bonding & Connectivity Products
NVENT ERICO FACILITY
ELECTRICAL PROTECTION
nVent ERICO offers a full range of
grounding, bonding and connectivity
products for data centers and other
datacom applications worldwide.
nVent ERICO products include grounding Cadweld Lugs Telecommunications
and bonding accessories, surge protection Ground Bar (TGB) and
and lightning protection products, and Lightning Cadweld Lugs
welded electrical connections. Protection Cable

GROUNDING AND BONDING

nVent ERICO offers an extensive line of
grounding and bonding products, which
includes ground rods and accessories,
signal reference grids, chemical ground
rods, nVent ERICO Ground Enhancement
Material (GEM), couplers, clamps,
Lightning Air
inspection wells, grounding and perimeter
Terminals
bus bars and ground test instruments.

SURGE PROTECTION
nVent ERICO surge protection products
are designed to protect against
damaging electrical surges on power
and communications lines caused by
lightning, building systems and other
switching events.
Cable Runway Ground
Strap (CRGS6)
LIGHTNING PROTECTION
Direct and indirect lightning strikes
can pose many risks to businesses,
including damaging buildings and critical
equipment. nVent ERICO lightning
protection products offer a variety
of solutions to help protect valuable Signal Reference
equipment and personnel and to avoid Pedestal Bonding Grid (SRG)
Low Impedance
disruption and downtime. Options Riser (LIR) Common Bonding
Network Jumper
WELDED ELECTRICAL A (CBNJ09)
CONNECTIONS
Universal Pedestal Clamp
nVent ERICO Cadweld welded electrical A
(MBNUPCJ82, MBNUPCJ240)
connections are used to connect the
grounding and bonding conductors to Cadweld Connection to
B
each other and to the ground electrode Pedestal (VS)
system, including ground rod electrodes,
B C Cadweld Through Connection to
building steel and rebar. Cadweld C
Pedestal (VG)
connections provide a permanent,
low-resistance connection needed to D Cadweld Connection to SRG
D
create a long-lasting, reliable bonding (HA)
network. Cadweld connections will not
deteriorate, cannot loosen and are made
with inexpensive, lightweight and portable
equipment. Cadweld Exolon is a filtered,
smokeless connection system designed
for making connections indoors.

2 | nVent.com/ERICO
For Datacom Applications
PREFABRICATED SIGNAL REFERENCE
GRID (SRG)
The SRG is an integrated high-frequency, low-
impedance signal reference grid structure, which
consists of a network of flat copper strips welded at
the crossovers in accordance with recommendations
Telecommunications Main found in IEEE® 1100 “IEEE Recommended Practice
Ground Bar (TMGB) and for Powering and Grounding Electronic Equipment.”
Cadweld Lugs The SRG is also referred to as a “Supplementary
Bonding Grid” (SBG) per TIA® 607.
Power Surge The SRG lies directly on the sub-floor under the raised-
Protection floor structure and is used to interconnect metal
frames, racks, enclosures, common terminals for signal
level power and the electrical distribution grounding
system. The SRG is used as a ground reference system
for IT equipment by creating an equipotential ground
reference plane over a large range of frequencies from
Water/Gas Pipe DC through the Megahertz range. At high frequencies,
1 Clamp flat strip conductors have considerably lower inductive
reactance than concentric stranded or solid conductors
and the configuration of the SRG results in a lower
impedance system, which limits potential differences
between data systems and other systems during
voltage transients or other power system disturbances.
The following graph from IEEE 1100 shows the
impedance of an SRG system versus a wire-only
grounding system.

Ground Rods SRG IMPEDANCE VS. FREQUENCY

200
5 180
SRG Impedance

2 160
Wire Only Impedance
Impedance in Ohms

140

3 120
100
80
4 60
40
20
0
CAT 6 Network 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0

Surge Protector Rebar Clamps

Frequency in MHz

CADWELD CONNECTIONS
SRG FEATURES AND BENEFITS
1 Cable-to-Lug (GL)
• Economical and maintenance-free
• Recommended in IEEE® 1100
Coaxial Surge 2 Cable-to-Rebar (RH)
Protector • Reduces common-mode noise
3 Cable-to-Ground Rod (GT) • Increases noise immunity to electric fields
• Reduces capacitive coupled interference
4 Cable-to-Cable (PT)
• Compliant with Information Technology Industry
Council Information Letter “Guidelines For Grounding
5 Cable-to-Steel (VF)
Subscriber/High Information Technology Equipment (ITE)” and
Speed Line Surge the National Electrical Code.
Protector IEEE is a registered trademark of The Institute of
Electrical and Electronics Engineers, Incorporated.
TIA is a copyright of Telecommunications
NOTE: Cadweld connections shown are typical. Connections for
Industy Association
any configuration and conductor are available to meet specific
application requirements.

nVent.com/ERICO | 3
 GROUNDING, BONDING & CONNECTIVITY PRODUCTS FOR DATACOM APPLICATIONS
Signal Reference Grid
SRGBD100 2” x 26 (50 x 0.40 mm) Gauge Copper Strip, 2’ x 2’ (0.60 x 0.60 m) Grid Spacing, 10’ x 100’ (3.04 x 30.48 m) Roll

SRGBE100 2” x 26 (50 x 0.40 mm) Gauge Copper Strip, 2’ x 2’ (0.60 x 0.60 m) Grid Spacing, 12’ x 100’ (3.66 x 30.48 m) Roll
SRGs can also be custom manufactured to suit your needs. SRG Part Numbering System:

SRG
Grid Spacing Length in Feet
B = 24” (0.60 m) (3 Digits)
C = 48” (1.21 m)
Width
A=4’ (1.22 m) B=6’ (1.83 m) C=8’ (2.44 m)
F = 12” (0.30 m)
D=10’ (3.05 m) E=12’ (3.66 m) F=14’ (4.27 m)
G=16’ (4.88 m) H=2’ (0.60 m) J=3’ (0.90 m)
K=5’ (1.52 m) L=7’ (2.13 m) M=9’ (2.74 m)

SRG Connector
MBNC82, MBNC240 Mesh Bonding Network Connector for bonding pedestal to signal reference grid or mesh.
MBNC82, #8 - #2 AWG, solid or stranded MBNC240, #2 - 4/0 AWG, stranded
Connector can be used independent of pedestal in stand-alone applications.
MBNUPCJ82, MBNUPCJ240 7/8” - 2” Round or Square Pedestals
MBNUPCJ82, #8 - #2 AWG, solid or stranded MBNUPCJ240, #2 - 4/0 AWG, stranded

EK16 Ground Clamp, #10 - #2 (Up to 25 mm²) conductor. Use on round and square pedestals up
to 1” (Up to 25mm diameter pedestal)

Direct-Burial Grounding Clamps

RC70 Heavy-Duty Rebar Clamp, #8 - 2/0 (Up to 8 mm) AWG Conductor,
#3 -#6 Rebar (8 – 18 mm)
RC100 Heavy-Duty Rebar Clamp, #8 - 4/0 (Up to 8 mm) AWG Conductor, #6 -#11 (18 – 38 mm) Rebar

Water Pipe Clamps

CWP1JU Bronze Pipe Clamp 1/2” to 1” (13 – 25 mm diameter) pipe, #10 - 2 (Up to 35 mm² conductor) AWG

CWP2JU Bronze Pipe Clamp 1-1/4” to 2” (32 – 50 mm diameter) pipe, #10 - 2 (Up to 35 mm² conductor) AWG

CWP4JU Bronze Pipe Clamp 2-1/2” to 4” (60 – 100 mm diameter) pipe, #10 - 2 (Up to 35 mm² conductor) AWG

Telecom Main Grounding Bus Bars (TMGB) & Telecom Grounding Bus Bars (TGB)
TGBA20L12PT, TGB, 1/4” x 2” x 20” (6.35 x 50.8 x 508 mm), Tin-plated copper, TIA Standards compliant
TGBA25L14PT, TGB, 1/4” x 2” x 24” (6.35 x 50.8 x 610 mm), Tin-plated copper, TIA Standards compliant
TMGBA20L27PT, TMGB, 1/4” x 4” x 20” (6.35 x 101.6 x 508 mm), Tin-plated copper, TIA Standards compliant
TMGBA25L33PT, TMGB, 1/4” x 4” x 24” (6.35 x 101.6 x 610 mm), Tin-plated copper, TIA Standards compliant
*Remove “T” suffix for untinned (plain) copper. Contact nVent ERICO for other sizes and configurations.
Copper-Bonded Ground Rods
615880, Copper-bonded Ground Rod, 5/8” x 8’ (14.2 mm Diam. x 2.40 m)
615800, Copper-bonded Ground Rod, 5/8” x 10’ (14.2 mm Diam. x 3.05 m)
613480, Copper-bonded Ground Rod, 3/4” x 8’ (17.2 mm Diam. x 2.40 m)
613400, Copper-bonded Ground Rod, 3/4” x 10’ (17.2 mm Diam. x 3.05 m)

In addition to the above grounding, bonding and SRG products, nVent ERICO can provide design assistance to protect your data center, including the proper selection
of power and data surge protection devices, Cadweld exothermic connections to suit individual grounding system requirements and the design of a lightning protection
system to comply with any lightning protection standard worldwide. Please contact nVent or an authorized factory representative for further information.

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CADDY ERICO HOFFMAN RAYCHEM SCHROFF TRACER

WARNING. nVent products shall be installed and used only as indicated in nVent’s product instruction sheets and training materials. Instruction sheets are available at nVent.com/ERICO and
from your nVent customer service representative. Improper installation, misuse, misapplication or other failure to completely follow nVent’s instructions and warnings may cause product
malfunction, property damage, serious bodily injury and/or death, and void your warranty.
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nVent reserves the right to change specifications without notice.
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