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| Introduction: |
| It is a Negative Sequence Voltage Sensing Phase Failure 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: |
· Monitors all 3 Phases of Voltage Supply.
· Available for any System Voltage.
· External Aux.supply.
· Auto Reset.
· Sleek DIN Rail mounted Enclosure.
· 1 CO output contact.
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| Application
Areas: |
| It is useful for monitoring incoming Mains Power Supply for unbalance voltage faults in Air-conditioning & Pump Control Panels. It is available in DIN Rail mounting enclosure. Suitable for Agricultural pump set. |
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| Technical
Specifications: |
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Specifications |
| 1 |
Supply Voltage |
System 240 / 380 / 415 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 N.A.; Over Voltage N.A.; Water Level N.A. |
| 4 |
Trip Time Delay |
On Phase Failure/Seq. 3.5 sec. ±1.5 sec. |
| 5 |
Resetting Mode |
Auto |
| 6 |
Weight |
320 gms. |
| 7 |
Dimensions (mm) |
Overall (L x W x D) 76 x 30.5 x 117.5; Mounting (L x W) 68 centre to centre |
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