Chicago Electric 92472 Specifications download pdf (Page 33)

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E. O. SCHWEITZER MANUFACTURING, A DIVISION OF SEL

UNDERGROUND FAULT INDICATORS

GFD

—

Ground Fault Detector

Key Features

• Detects ground faults by sensing the vector sum of the current

flowing through a three-conductor cable.

• Choice of three reset options (secondary voltage, load current, or

time) to meet various application needs.

• Install the split-core sensor on three-phase cables without opening

the primary.

• Large reflective red target is easy to see both at night and during

the day.

• Submersible vinyl-coated sensing core.

• Stainless-steel hardware and UV-stabilized materials ensure long

product life.

• Thousands of SEL GFDs in service today help customers around the

world quickly locate ground faults.

Speciﬁcations

Power Source Secondary voltage (120 to 240 Vac

L- N

50 to 60 Hz); load current (≥3 A); or

lithium battery for timed reset products

Reset Time (timed reset

models only)

2, 4, or 8 hours

Nominal Trip Ratings 20, 40, 50, or 100 A

Trip Tolerance

±10%

Maximum Fault Current 25 kA for 10 cycles

Trip Response Time 1 ms

Outer Diameter

Clamping Range

4" (6" optional)

Housing Materials UV-stabilized polycarbonate resin

Submersibility Up to 15 feet

Temperature Range —40° to +85°C

Reliable ground fault detection

for three-conductor cable

applications.

A Ground Fault Detector (Model GFD50SA) provides fault indication in

the Middle East.

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Chicago Electric 92472 Specifications Page 33

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