Product Catalogue

2785 Sheath Grounding Unit

The 2780 Sheath Grounding Unit (SGU) connects to the cable armors and provides a low impedance ground path for high voltage transients while allowing tone location and monitoring signals to pass.

SKU: 2785SGU Categories: , ,

The 2780 SGU is designed to fit into standard 3 inch or larger pedestals, marker posts and Big Fink ™ test stations. The 2780 SGU is environmentally sealed in a field rugged UV resistant case. A bond bar opens for east/west isolation and testing while still providing full surge protection.



  • Provides low impedance ground path for high transient voltages
  • Automatically resets
  • Impact and UV resistant packaging
  • Easy access for east/west sheath isolation and testing
  • Three sizes and mounting configurations to suit your application




CAPACITANCE: 6 pF, line to ground

DC BREAKDOWN VOLTAGE: 300 – 500 VDC @ 2000 v/sec
IMPULSE BREAKDOWN: < 1000v at 10 kv/sec IMPULSE CURRENT RATING: 40,000 A, 8x20 µs impulse, single cycle AC CURRENT RATING (MOMENTARY): 20 A, 60Hz AC, 1s application AC VOLTAGE RATING (CONTINUOUS): 100 VAC, 60Hz AC continuous P Series:

3” x 1.5” x 2.5” (7.6 cm x 3.8 cm x 6.4 cm)
M Series:

2” x 1” x 3” (5.1 cm x 2.5 cm x 7.6 cm)
F Series:

2.5” x 0.75” x 2.5” (6.4 cm x 1.9 cm x 6.4 cm)
P Series:

0.75 lbs (0.34 kg)
M Series:

0.50 lbs (0.23 kg)
F Series:

0.40 lbs (0.17 kg)
Operating Temperature Range:
-58°F to +185°F (-50°C to +85°C)