Raise your Query
Hi! Simply click below and type your query.
Our experts will reply you very soon.
Hi! Simply click below and type your query.
Our experts will reply you very soon.
| Business Type | Manufacturer, Exporter, Supplier, Retailer |
Preferred Buyer From
| Location | Anywhere in India |
| Electrical Ratings (3Phase) Symmetrical Basis | |
| Rated Frequency | 50/60Hz |
| Rated Maximum Line to Line Voltage | 12kV,r.m.s |
| Rated Power Frequency Withstand Voltage:Air | 42kV,r.m.s |
| Rated Impulse Withstand Voltage:Air | 95kV,Peak |
| Rated Normal Current | 1250A |
| Rated Short- Circuit Current ( 3 Phase Symmetrical Basis) | 25kA,r.m.s |
| Percentage D.C. Component of Rated S.C. Breaking Current | 50.00% |
| Rated Short-Circuit Making Current | 50kA,Peak |
| Rated Duration of Short Time Current | 4s |
| Rated Short-Time Withstand Current | 25kA,r.m.s |
| Rated Peak Withstand Current | 50kA,r.m.s |
| *Maximum Contact Resistance at Minimum Closing Force | 25Micro ohms |
| *Rated Breaking Current of Single Capacitor Bank | 630A,r.m.s |
| *Rated Breaking Current of Back-to-Back Capacitor Bank | 400A,r.m.s |
| Rated operating sequence | o-0.3s-co-180s-co |
| Mechanical Data | |
| Closing Force due to Bellow and Atmospheric | 80±40N |
| Force Required to Hold Contacts open at Full Stroke | 120±50N |
| Mechanical Requirements (Ref. Vcb) | |
| Contact Stroke | 8±1 mm |
| Opening Speed(average of 75 contact gap) | 1.5±0.2m/Sec |
| Maximum Overtravel During Opening | 2mm |
| Maximun Rebound During Opening | 2mm |
| Closing Speed(average of last 30% contact gap) | 0.9±0.2m/Sec |
| Maximum Contact Bounse Duration(with maximum 2 bounces) | â‰Â¤2ms |
| Rated Contact Compressive Force | 2500±200N |
| Closing and Opening non-simultaneity of three-phase Contacts | â‰Â¤2ms |
| Life (Estimated) | |
| Electrical Life at Rated Normal Current | 50,000 Operations |
| Electrical Life at Rated Short Circuit Current | 100 Operations |
| Mechanical Life | 50,000 Operations |
| Contact Erosion Limit | 3mm |
| Shelf Life | 20Years |
