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PFS3 Phase Failure Relays
| Introduction: |
| It is a Phase Failure Relay. It is best suitable for protection of balanced 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 11 PIN Plug-in base mounting & flash mounting enclosure. | |
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| Features: |
· Monitors all 3 phases of Voltage Supply.
· Built-in Auxillary Supply.
· Auto Reset.
· Adjustable trip time delay (1-5 sec.)
· 11 PIN socket base mounted Enclosure.
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| Technical Specifications: |
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Specifications |
| 1 |
Supply Voltage |
System 240 / 380 / 415 V AC ± 15%, 50-60Hz; Auxiliary Built-in |
| 2 |
Output Contacts |
2 CO |
| 3 |
Trip Setting (Volts) |
Phase unbalance 30 V to 70 V ±6V (adjustable); Under Voltage N.A.; Over Voltage N.A.; Water Level N.A. |
| 4 |
Trip Time Delay |
On Phase Failure/Seq. 1 - 5 secs. (variable) |
| 5 |
Resetting Mode |
Auto |
| 6 |
Weight |
250 gms. |
| 7 |
Dimensions (mm) |
Overall (L x W x D) 80 x 35 x 95; Mounting (L x W) 11 - Pin Plug-in | | |
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