Chicago Electric 92472 Specifications download pdf (Page 18)

Tel: +1.847.362.8304 | Fax: +1.847.362.8396 | www.eosmfg.com

E. O. SCHWEITZER MANUFACTURING, A DIVISION OF SEL

CRDs provide fault indication in a low-voltage application.

Key Features

• Load current-powered

—

no battery necessary.

• No minimum voltage requirement.

• Automatically resets upon restoration of load current.

• Inrush restraint feature prevents false tripping during recloser

operations.

• Maintains trip tolerance throughout the clamping range.

• Easy to install with a single hot stick.

• UV-stabilized materials provide excellent weatherability.

Speciﬁcations

Power Source Load current

Nominal Trip Ratings 100 to 1200 A

Trip Tolerance

±10%

System Voltage Range (L-L) Up to 38 kV

Reset Time 25 seconds at 3 A

Reset Current 3 A

Maximum Fault Current 25 kA for 10 cycles

Trip Response Time 1 ms

Inrush Restraint Response Time 300 ms

Outer Diameter

Clamping Range

0.3" to 1.1" (please specify clamping

diameter or range when ordering)

Housing Material UV-stabilized polycarbonate resin

Transformer Core Silicon steel with vinyl coating

Temperature Range —40° to +85°C

Approximate Weight 510 g (1.12 lbs)

The CRD Fault Indicator is easy to install on an

overhead line using a single hot stick.

OVERHEAD FAULT INDICATORS

CRD

—

Current Reset

Load current-powered FCI with no minimum

voltage requirement provides a solution for

low-voltage applications.

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Chicago Electric 92472 Specifications Page 18