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Introduction:  |  
| It is a Frequency Monitoring Relay. It is best suitable for monitoring supply frequency variations. It is used in single phase system supply, where Under / Over Frequency monitoring or protection is required. It can be Rail mounted & have individually settable under / over frequency settings, thus increasing their utility as entire System Protection Relays. Added facility of adjustable Trip Time Delay and Power-ON Delay has also be provided, alongwith separate indications. It can be used as over speed monitor of DG sets. |    | 
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| Features: |  
· Monitors connected load for Under & Over Frequency · On Delay. · Trip Delay. · Adjustable Under / Over Frequency settings. · Auto / Manual Reset. · Sleek DIN Rail mounted housing.
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| Application Areas: |  
| Generator control panels AMF control panels Power Distribution panels Induction heater control panels |    | 
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| Technical Specifications: | 
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Specifications |  
| 1 | 
Supply Voltage | 
System 110 / 240 / 380 / 415 V AC ±20%; Auxiliary ±20% |  
| 2 | 
Ext. Input | 
110 / 240 / 380 / 415 V AC ±20% 12 / 24 V DC |  
| 3 | 
Output contact | 
1 CO (2 CO) |  
| 4 | 
Trip setting | 
Under Current —; Over Current —; Under Frequency 40 Hz - 60 Hz (variable); Over Frequency 50 Hz - 70 Hz (variable); Under Power —; Over Power —; Cos-Ø —; Reverse Power — |  
| 5 | 
Input Current Range | 
— |  
| 6 | 
Power On Delay | 
1 - 10 secs. (adjustable) |  
| 7 | 
Trip Time Delay | 
1 - 10 secs. (adjustable) |  
| 8 | 
Resetting | 
Auto |  
| 9 | 
Weight | 
450 gms. |  
| 10 | 
Dimensions (mm) | 
Overall (L x W x D) 76 x 56.5 x 117.5; Mounting (L x W) 67 x 46 |    |