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LS D2 Multi Function Phase Failure Relays
| Introduction: |
| It is a Negative Sequence Voltage Sensing Phase Failure with Under & Over Voltage Relay. It is best suitable for 3 phase loads or 3 phase motor / pump loads only. It offers protection against Phase Failure, Phase Unbalance, Phase Sequence Reversal, Under Voltage & Over Voltage faults. It is useful for incoming side, Mains Supply monitoring, General voltage faults, AMF/Transfer Switch Panels & Pump Control Panels. It is available in DIN Rail mounting enclosure. | |
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| Features: |
· Under & Over Voltage (Factory Set).
· Monitors Aux.Voltage for Under & Over Voltage.
· Monitors all 3 phases of Voltage Supply for Unbalance & Phase Loss.
· Available for any System Voltage.
· Auto Reset.
· Sleek DIN Rail mounted enclosure.
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| Application Areas: |
| Measures 3-Phase supply for Unbalance Voltage, Loss of Phase, Phase Sequence, Under Voltage & Over Voltage. Best suitable for balance 3 phase loads or motor loads only. Phase failure &UV/OV Relays can be best used for a host of Auxiliary Systems & Plant control panels & machinery. | |
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| Technical Specifications: |
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Specifications |
| 1 |
Supply Voltage |
System 240 / 380 / 415 / 440 V AC ±20%; Auxiliary 110 / 240 / 380 / 415 / 440 V AC ±20% |
| 2 |
Output Contacts |
1 CO |
| 3 |
Trip Setting (Volts) |
Phase unbalance 40 V ±6 V (fixed); Under Voltage 80% ± 5 V (fixed); Over Voltage 120% ± 5V (fixed); Water Level N.A. |
| 4 |
Trip Time Delay |
On Phase Failure 3.5 secs. ± 1.5 sec; On UV/OV Less than 2 secs. |
| 5 |
Resetting Mode |
Auto |
| 6 |
Weight |
400 gms. |
| 7 |
Dimensions (mm) |
Overall (L x W x D) 76 x 56.5 x 117.5; Mounting (L x W) 67 x 46 | | |
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