E.O. Schweitzer Manufacturing - A Division Of SEL
SEL 1CRD Current Reset Type Fault Indicator

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E.O. Schweitzer Manufacturing
A Division of SEL

    Fault Indicators
     Voltage Indicators
    Other Products for the Industry

Tel.: 1-847-362-8304
Fax: 1-847-362-8396
Email: csr@eosmfg.com

1CRD
Current Reset Type

Overview The current reset 1CRD fault indicators' large, reflective display makes it an ideal choice for installation on overhead cables. When the system voltage does not meet the 5 kV minimum requirement of an electrostatic reset fault indicator but 3 A of continuous load current is present, the CRD is an excellent solution.
Features
  • Line-powered: no batteries necessary
  • Easy to install with a single hotstick
  • Largest display target available on the market (8 cmI)
  • No minimum voltage requirement
  • Maintains trip tolerance throughout the clamping range
  • Will not falsely trip during recloser operations
  • UV-stabilized materials provide excellent weatherability
Specifications
Power Source Load current
Nominal Trip Ratings 400 and 800 A
Trip Tolerance +/-10%
Current Reset 3 A
Voltage Range (P-G) 38 kV max.
Reset Time 25 seconds at 3 A
Maximum Fault Current 25 kA for 10 cycles
Temperature Range -40° to +85°C
Trip Response Time 1 ms
Inrush Restraint Response 300 ms
Clamping Range 0.3” to 1.1” O.D.
Housing Material UV-stabilized, polycarbonate resin
Transformer Core Silicon steel with vinyl coating
Weight 510 grams (typical)

 
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Copyright © 2007 E.O. Schweitzer Manufacturing Division of SEL; All Rights Reserved