Installation Guide
United States
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F-153
Connectors & Grounding — Blackburn
®
Mechanical Connectors
Split-Bolt Connectors
For copper-to-copper connections.
Type H — High-Strength
Split-Bolt Connectors
• Bolt and nut of high-strength
corrosion-resistant bronze alloy
• Pressure bar is copper through 40H,
copper alloy for 350 kcmil and above
• Bolt and nut of hex design
up to 350 kcmil
• Tested and Listed to UL486C, UL467
for grounding and for direct burial
through Cat. No. 40H
ConduCtor range (aWg or kCmil)
dimensions (in.)
Cat. no.
range For
equal main
and tap
min. tap
With one
max. main a B C d
9h 10 Str.–12 Sol. 14 Sol.
3
⁄8 .146
1
⁄2
25
⁄32
8h 8 Str.–10 Sol. 14 Sol.
3
⁄8 .146
1
⁄2
25
⁄32
8h3* 8 Str.–12 Sol. 16 Str.
3
⁄8 .146
1
⁄2
29
⁄32
6h 6 Sol.–8 Sol. 14 Sol.
15
⁄32 .170
21
⁄32
31
⁄32
6h3* 6 Sol.–10 Sol. 16 Str.
15
⁄32 .170
21
⁄32 1
1
⁄8
4h 4 Sol.–8 Sol. 14 Sol.
17
⁄32 .235
23
⁄32 1
1
⁄16
4h3* 4 Sol.–8 Sol. 16 Str.
17
⁄32 .235
23
⁄32 1
9
⁄32
3h 3 Sol.–8 Sol. 16 Str.
17
⁄32 .235
23
⁄32 1
1
⁄16
3h3* 4 Str.–8 Sol. 16 Str.
17
⁄32 .235
23
⁄32 1
9
⁄32
2h 2 Sol.–6 Sol. 14 Sol.
19
⁄32 .271
25
⁄32 1
1
⁄4
2h3* 2 Sol.–6 Sol. 14 Sol.
19
⁄32 .271
25
⁄32 1
15
⁄32
1h 2 Str.–6 Sol. 14 Sol.
11
⁄16 .330
7
⁄8 1
11
⁄32
1h3** 2 Str.–6 Sol. 14 Sol.
11
⁄16 .330
7
⁄8 1
5
⁄8
10h 1/0 Str.–4 Sol. 14 Sol.
3
⁄4 .385
15
⁄16 1
19
⁄32
20h 2/0 Str.–2 Sol. 14 Sol.
7
⁄8 .443 1
1
⁄16 1
13
⁄16
30h 4/0 Str.–2 Sol. 6 Sol. 1 .580 1
5
⁄16 2
5
⁄32
40h 250 kcmil–1 Str. 8 Sol. 1 .580 1
5
⁄16 2
5
⁄32
350m 350 kcmil–250 kcmil 1/0 Str.
15
⁄16 .717 1
21
⁄32 2
11
⁄16
500m 500 kcmil–400 kcmil 2/0 Str. 1
1
⁄2 .842 1
7
⁄8 3
1
⁄32
750m 750 kcmil–600 kcmil 4/0 Str. 1
15
⁄16 1.029 2
1
⁄4 3
21
⁄32
1000m 1,000 kcmil–800 kcmil 4/0 Str. 2
1
⁄4 1.185 2
17
⁄32 4
1
⁄32
* Will accommodate three wires of maximum size. The H3 bolts are not UL Listed or CSA Certified.
** Will accommodate three #2 Stranded wires. UL recognizes solid and stranded conductor configurations for sizes
#8 and smaller and stranded configurations only for sizes #6 and larger.
• Bolt and pressure bar of copper
alloy, completely tin plated for
corrosion resistance
• Contoured spacer of electrolytic
copper up through 4/0, bronze alloy
for 350 kcmil and above, all tin plated
• Most connectors are UL
®
Listed and
CSA Certified for copper conductor only
• Blackburn Contax
®
paste recommended
when used on aluminum conductor
For use on copper, aluminum and ACSR conductors.
Type HPS — Plated Split-Bolt Connectors with Spacer
Cat. no.
ConduCtor range (aWg or kCmil)
range For
equal main
and tap
range For
equal main
and tap
min. tap
With one
max. main dimensions (in.)
aCsr Copper or aluminum a B C d
9hps — 10 Str.–12 Sol. 12 Sol.
3
⁄8 .146
1
⁄2
29
⁄32
8hps — 8 Str.–12 Sol. 12 Sol.
3
⁄8 .146
1
⁄2
29
⁄32
6hps 8 6 Sol.–12 Sol. 12 Sol.
15
⁄32 .170
21
⁄32 1
1
⁄8
4hps 6–8 4 Sol.–12 Sol. 12 Sol.
17
⁄32 .235
23
⁄32 1
9
⁄32
2hps 4–8 2 Sol.–8 Sol. 8 Sol.
19
⁄32 .271
25
⁄32 1
15
⁄32
1hps 2–8 1 Str.–8 Sol. 8 Sol.
11
⁄16 .330
7
⁄8 1
5
⁄8
10hps 1–6 1/0 Str.–6 Sol. 6 Sol.
3
⁄4 .385
15
⁄16 1
13
⁄16
20hps 1/0–6 2/0 Str.–6 Str. 6 Sol.
7
⁄8 .443 1
1
⁄16 2
1
⁄16
40hps 4/0–4 4/0 Str.–4 Sol. 4 Sol. 1 .580 1
5
⁄16 2
15
⁄32
350hps 266.8–1/0 350 kcmil–1/0 Str. 2 Sol. 1
5
⁄16 .717 1
21
⁄32 2
11
⁄16
500hps* 397.5–1/0 500 kcmil–1/0 Str. 1/0 Str. 1
1
⁄2 .842 1
7
⁄8 3
1
⁄32
750hps* 666.6–4/0 750 kcmil–4/0 Str. 2/0 Str. 1
15
⁄16 1.029 2
1
⁄4 3
21
⁄32
1000hps* 900–477 1,000 kcmil–500 kcmil 4/0 Str. 2
1
⁄4 1.185 2
17
⁄32 4
1
⁄32
* Not CSA Certified. UL 486A.
B
A
C
D
B
D
C