

Peephole Copper Cable Lugs — SC(JGY) / SG(JGB) Series
Tin-plated copper cable lugs with an inspection peephole for quick conductor verification and lower contact resistance.
Multiple stud-hole (Φ) options per size for flexible mounting on busbars and panels.
Full range 1.5–630 mm² with precise D / d / L metrics for easy die matching.
Reliable terminations for switchgear, control panels, batteries and general power distribution.
Overview — Peephole Copper Cable Lugs
The SC(JGY) / SG(JGB) Series are tin-plated copper cable lugs featuring a
peephole for quick visual confirmation of full conductor insertion. Manufactured from high-conductivity copper
and coated with tin, these lugs deliver low contact resistance and dependable corrosion protection. Each size
provides one or more stud hole (Φ) options to fit common fasteners used in switchgear and panels.
Material: Tinned copper |
Design: Peephole palm, compression barrel |
Range: 1.5–630 mm² |
Crimping: Hex / indent / compression
Applications
- Switchgear, control panels and power distribution boards
- UPS / battery systems and industrial equipment terminations
- Installations requiring inspection-friendly copper cable lugs
Complete Size Table
Dimensions (mm): Φ options / D (palm) / d (barrel I.D.) / L (overall).
| Type | Φ (stud options) | D | d | L |
|---|---|---|---|---|
| SC(JGY)-1.5 | Φ4.2, Φ5.2 | 3.5 | 2.1 | 18 |
| SC(JGY)-2.5 | Φ4.2, Φ5.2, Φ6.2 | 4 | 2.6 | 19 |
| SC(JGY)-4 | Φ5.2, Φ6.2 | 4.8 | 3.4 | 21 |
| SC(JGY)-6 | Φ5.2, Φ6.2, Φ8.2 | 5.5 | 4.1 | 24 |
| SC(JGY)-10 | Φ6.2, Φ8.2 | 6.5 | 5.1 | 28 |
| SC(JGY)-16 | Φ6.2, Φ8.2, Φ10.5 | 8 | 6.4 | 33 |
| SC(JGY)-25 | Φ6.2, Φ8.2, Φ10.5 | 9 | 7 | 36 |
| SC(JGY)-35 | Φ6.2, Φ8.2, Φ10.5, Φ12.5 | 10.5 | 8.5 | 42 |
| SC(JGY)-50 | Φ8.2, Φ10.5, Φ12.5 | 12 | 9.8 | 49 |
| SC(JGY)-70 | Φ8.2, Φ10.5, Φ12.5 | 14.5 | 11.9 | 55 |
| SC(JGY)-95 | Φ10.5, Φ12.5 | 16 | 13 | 60 |
| SC(JGY)-120 | Φ12.5, Φ16.5 | 19 | 15.4 | 67 |
| SC(JGY)-150 | Φ12.5, Φ16.5 | 20.5 | 16.7 | 73 |
| SC(JGY)-185 | Φ16.5 | 23.5 | 19.3 | 78 |
| SC(JGY)-240 | Φ16.5 | 26 | 21.2 | 92 |
| SC(JGY)-300 | Φ16.5, Φ20.5 | 30 | 24 | 102 |
| SC(JGY)-400 | Φ16.5, Φ20.5 | 34 | 27.6 | 113 |
| SC(JGY)-500 | Φ16.5, Φ20.5 | 38 | 31.6 | 123 |
| SC(JGY)-630 | Φ20.5 | 45 | 37.6 | 145 |
Installation Notes
- Strip insulation and fully insert the conductor until visible in the peephole.
- Crimp with the matched die (hex/indent/compression) to reach rated pull-out strength.
- Mount using the specified stud diameter and torque for a stable, low-resistance joint.







