Operating Guide

United States
Tel: [phone]
800.816.7809
Fax: [phone]
Technical Services
Tel: [phone]
www.tnb.com
www.tnb.com
United States
Tel: [phone]
800.816.7809
Fax: [phone]
Technical Services
Tel: [phone]
39
Connectors & Grounding — Blackburn
®
Grounding Systems
Ground Clamps
CAT. NO. CLAMP TYPE CONDUIT SIZE
6209 Swivel
1
⁄2"–
3
⁄4"
6210 Straight
1
⁄2"–
3
⁄4"
6211 Swivel 1"–1
1
⁄4"
6212 Straight 1"–1
1
⁄4"
6214 Swivel 1
1
⁄2"–2"
6216 Swivel 2
1
⁄2"–3"
6218 Swivel 3
1
⁄2"–4"
For aluminum and steel cable trays
with regular or reinforced flanges.
Tray Clamps
• Serrations and biting teeth on clamping saddle provide
a high-quality bond between conduit and clamp
• Can be clamped to any position in a 90° arc
• Hardened steel screws bite into tray and provide positive bond
• Malleable iron hub and steel U-bolt accept conduit from any angle
Efficiently grounds trailer frames, cable
trays, CATV and telephone pedestals.
Beam Grounding Clamp
• Connects #6 to #14 solid copper conductor to metal frames
where continuity of grounding can be assured
• 7
⁄16" silicon bronze hex-head bolt installs with cam-wrench,
socket or crescent wrench
• Tin-plated square-head bolt enables installation with pliers
when tighter ground connection is needed
• Ground wire hole access from four directions minimizes need
to bend ground wire
• Designed so ground wire may be installed on clamp prior
to mounting clamp on metal frame, reducing installation time
• Beam and ground wire connection can be tightened separately
with disconnecting integrity of ground circuit
• High-strength copper alloy (91% nom.) provides greater
conductivity, durability and corrosion resistance without
the need for plating
• High-strength anchoring bolt penetrates paint or metal oxide
CAT. NO. DESCRIPTION CONDUCTOR SIZE (AWG)
TGC Square-Head Tin-Plated Steel Bolt #6 to #14 sol.
Listed to UL
®
467
1211_1836_TNB_TNB_Power Connection & Control Cat31_r7.indd 39 2/24/14 3:27 PM