Current Protection


Current Protection

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Current Protection

2C138 Sensitive Earth Fault Relay

Current Protection

2C139 Shaft Overcurrent Protection Relay

  • High sensitivity (0.1% of In)
  • 50Hz & HF noise suppression - tuned to 150 Hz
  • Optional reset functions Instantaneous (Fast), definite time, count down
  • 40-300V DC auxiliary supply Power supply fail relay drops out if the auxiliary supply fails.
  • Optional 20-70V DC supply
  • Low CT burden & high thermal rating
  • Optional 1A or 5A CT input
  • Instantaneous pick up LED
  • Configurable output contacts
  • 0-31s time delay (125ms steps)
  • Push button / electrical flag reset
  • Non-volatile trip indication
  • Multi voltage inhibit / enable & flag reset inputs
  • Size 2M draw out case

 

Current Protection

2C63 Definite Time Current Check Relay

  • 10:1 PU setting ranges. Select from two options: 5 - 50% or 20 - 200% of nominal input current
  • 1A or 5A nominal CT’s
  • Fast reset times (
  • <5% transient over-reach
  • 2 N/O & 2 N/C time delayed output contacts
  • 3 extra configurable C/O contacts (Time delayed or inst. phase segregated)
  • 0 to 99s time delayed output with +0.5% accuracy
  • Time settings easily selected by digital thumb wheel switches
  • Timing in progress LED
  • Optional internal timer initiate input logic
  • Hand & remote flag reset
  • 40-300V DC auxiliary supply Power supply fail relay drops out if the Auxiliary supply fails.
  • Optional 20-70V DC supply
  • Size 4M draw out case
Current Protection

2C65 Current Check Relay

Current Protection

2C720 700 Series AC Current Sensing Relay

Current Protection

2C74 Instantaneous Current Relay

Current Protection

2C81 DC Current Sensing Relay