Current Protection
2C138 Sensitive Earth Fault Relay
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2C139 Shaft Overcurrent Protection Relay
- High sensitivity (0.1% of In)
- Tuned to 150 Hz or 180 Hz
- Fundamental & HF noise suppression
- 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
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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 (less than 15ms at 20x setting, repeated offset)
- <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
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2C65 Current Check Relay
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2C720 700 Series AC Current Sensing Relay
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2C74 Instantaneous Current Relay
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2C81 DC Current Sensing Relay
ObsoleteBekijk details