Current Protection


Current Protection

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Current Protection

2C138 Sensitive Earth Fault Relay

  • High sensitivity (0.1% of Is)
  • 3rd harmonic & HF noise suppression
  • Tuned to 50 Hz
  • Optional reset functions: Instantaneous (Fast), definite time, count down
  • 40-300V DC aux. supply
  • 20-70V DC aux. optional
  • 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 input
  • Multi voltage flag reset input
  • Auxiliary supply fail alarm
  • Flush or rack mount draw out case
  • Made in Australia
Current Protection

2C63 Current Check / CB Fail Relay

  • 10:1 PU setting ranges
  • 5 – 50% or 20 – 200% of nominal input current
  • 1A or 5A nominal CT’s
  • Fast reset times(<15ms at 20x setting, repeated offset)
  • <5% transient over-reach
  • Two time delayed C/O output contacts
  • Three time delayed or inst. phase segregated(<20ms at 2x setting)
  • C/O contacts
  • 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 status input
  • 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 4M56 draw out case
  • Made in Australia
Current Protection

2C65 Current Check Relay

  • 10:1 PU setting ranges
  • 5 – 50% or 20 – 200% of nominal input current
  • 1A or 5A nominal CT’s
  • Fast inst. O/C pick up (<15ms at 2x setting)
  • Fast O/C reset time (<15ms at 2x setting)
  • <5% transient over-reach
  • Eight C/O output contacts
  • 0 to 99s time delayed output with +0.5% accuracy
  • Time settings easily selected by digital thumb wheel switches
  • Timing in progress LED
  • Five status inputs
  • User configurable operating 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 4M56 draw out case
  • Made in Australia
Current Protection

2C720 700 Series AC Current Sensing Relay

  • AC Current Sensing Relay
  • Ten year factory warranty
  • Plug in measuring module
  • Double insulated high impact polystyrol case
  • Termination socket included for surface mounting enabling front or rear connection with optional DIN rail mounting
  • Proven circuit designs based on over 15 years of field service in hundreds of varied & demanding applications
  • Easy to set calibration scales
  • Tolerance to shock & vibration for generator, compressor & mobile applications
Current Protection

2C74 Instantaneous Current Relay

  • High speed operation
  • High sensitivity
  • 50Hz or 60Hz operation
  • Seven (7) current settings using a plug bridge
  • Choose from 5 setting ranges
  • <10ms operation at 5x setting
  • Hand reset mechanical flag
  • 2 N/O trip contacts
  • Rugged attracted armature sensing element
  • Use 3 independent units for 3 phase applications
  • Size 2M28 draw out case
  • Made in Australia
Current Protection

2C81 DC Current Sensing Relay

  • High sensitivity
  • 40-300V DC auxiliary supply Power supply fail relay drops out if the auxiliary supply fails.
  • Optional 20-70V DC supply
  • Optional mV input ranges
  • Custom front dial calibration scale
  • Two C/O output contacts
  • One C/O fail alarm contact
  • Optional delay timer
  • Current pick up LED indication
  • Power supply healthy LED indication
  • Size 2M28-S draw out case
  • Made in Australia