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參數(shù)資料
| 型號： | 9325-8390 |
| 元件分類： | 功率/信號繼電器 |
| 英文描述： | POWER/SIGNAL RELAY, 3PST, MOMENTARY, 0.175A (COIL), 28VDC (COIL), 4900mW (COIL), 25A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
| 文件頁數(shù)： | 3/13頁 |
| 文件大?。?/td> | 757K |
| 代理商： | 9325-8390 |
Types of suppressors:
Passive devices.
The resistor capacitor circuit
It eliminates the power dissipation problem, as well as fast voltage rises. With a proper match between coil and resistor,
approximate capacitance value can be calculated from:
C = 0.02xT/R, where
T = operating time in milliseconds
R = coil resistance in kiloOhms
C = capacitance in microFarads
The series resistor must be between 0.5 and 1 times the coil resistance. Special consideration must be taken for the
capacitor inrush current in the case of a low resistance coil.
The record shown opposite is performed on the same relay as above. The operation time becomes:
- time to start the movement 2.3ms
- transfer time 1.2ms
The major difficulty comes from the capacitor volume. In our example of a relay with a 290 coil and time delay of 8 ms, a
capacitance value of C=0.5 uF is found. This non polarized capacitor, with a voltage of 63V minimum, has a volume of about
1cm3. For 150V, this volume becomes 1.5 cm3.
Date of issue: 6/00
- 9 -
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 9325-8398 | POWER/SIGNAL RELAY, 3PST, MOMENTARY, 0.175A (COIL), 28VDC (COIL), 4900mW (COIL), 25A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
| 9325-8734 | POWER/SIGNAL RELAY, 3PST, MOMENTARY, 0.175A (COIL), 28VDC (COIL), 4900mW (COIL), 25A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
| 9325-10275 | POWER/SIGNAL RELAY, 3PST, MOMENTARY, 6900mW (COIL), 25A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
| 9325-10382 | POWER/SIGNAL RELAY, 3PST, MOMENTARY, 0.175A (COIL), 28VDC (COIL), 4900mW (COIL), 25A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
| 9325-10383 | POWER/SIGNAL RELAY, 3PST, MOMENTARY, 0.175A (COIL), 28VDC (COIL), 4900mW (COIL), 25A (CONTACT), 28VDC (CONTACT), PANEL MOUNT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 9325-8723 | 制造商:Leach International Corporation 功能描述:747-200 AIR LINE - Bulk |
| 9325-8734 | 制造商:Leach International Corporation 功能描述:EM RLY 3PST-NO 25A 28VDC 160OHM BRKT - Bulk |
| 9325-8994 | 制造商:Leach International Corporation 功能描述:CONTENT MANAGER - Bulk |
| 932597100 | 制造商:Lumberg Automation 功能描述:CONNECTOR, GSA 3000 BLACK, VALVE, 3C + GROUND, SOLDER TERM, SCREW MOUNTING (UL) |
| 932597-100 | 制造商:Hirschmann Electronics GmbH & Co Kg 功能描述:GSA 3P+E black appliance connector |
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