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70-2R-1C-8.25 数据表(PDF) 6 Page - Littelfuse |
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70-2R-1C-8.25 数据表(HTML) 6 Page - Littelfuse |
6 / 12 page 66 E Rated Medium Voltage Fuses Current Limiting “E” Rated fuses have time current characteristics designed to provide current limiting protection for power transformers, potential transformers, power centers, feeder centers, and unit sub stations. When properly applied, they can protect against high and low value fault currents. NEMA Standards for “E” rated medium voltage fuses require that fuses rated 100E or less open within 300 seconds (5 minutes) when subjected to an RMS value of 200-240% of the fuse’s continuous current rating; and fuses with an “E” rating larger than 100E must open within 600 seconds (10 minutes) when subjected to an rms current of 220-240% of the fuse’s continuous current rating. These values establish one point on the time-current curve. Application Note: Since these fuses are used for the protection of general purpose circuits which may contain transformers, motors, and other equipment producing inrush and/or overload cur- rents, fuses should generally be rated at 140% of the normal full load current, and circuits should be analyzed to ensure that system load currents will not exceed the current rating of the fuse. CHARACTERISTICS Voltage Rating: 2,400 volts – 38,000 volts Current Range: 10E – 600E OPTIONS s Hermetically Sealed for use in hazardous locations (add “S” suffix to part number) s Clip-lock (CL) and bolt-in styles available. 3"DIA Dim.A (Clip Center) 6.38" Dim.B 9.75" Catalog Number 10E-1C-2.75 15E-1C-2.75 20E-1C-2.75 25E-1C-2.75 30E-1C-2.75 40E-1C-2.75 50E-1C-2.75 65E-1C-2.75 80E-1C-2.75 100E-1C-2.75 125E-1C-2.75 150E-1C-2.75 200E-1C-2.75 125E-2C-2.75 150E-2C-2.75 175E-2C-2.75 200E-2C-2.75 225E-2C-2.75 250E-2C-2.75 300E-2C-2.75 350E-2C-2.75 400E-2C-2.75 450E-2C-2.75 Old Catalog Number LCX 10E — — — LCX 30E LCX 40E LCX 50E LCX 65E LCX 80E LCX 100E — — — LCX 125E LCX 150E LCX 175E LCX 200E LCX 250E LCX 300E LCX 400E — Size 10E 15E 20E 25E 30E 40E 50E 65E 80E 100E 125E 150E 200E 125E 150E 175E 200E 225E 250E 300E 350E 400E 450E Dim. A (inches) 7" 7" Dim. B (inches) 10.875" 10.875" Max Interrupting Rating RMS (Asym) 80,000 80,000 Figure Number 14 14 14 14 14 14 14 14 14 14 14 14 14 15 15 15 15 15 15 15 15 15 15 E RATED FIGURE 14 FIGURE 15 FIGURE 16 Previous Next |
类似零件编号 - 70-2R-1C-8.25 |
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类似说明 - 70-2R-1C-8.25 |
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