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三相单相电压监控继电器（通用型） 订购编号:MR-EU31UW1P
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Voltage monitoring in 3-phase and 1-phase mains
• Multifunctions monitoring relays
• Monitoring of phase sequence and phase failure
• Connection of neutral wire optional
• Supply voltage = measuring voltage
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Meassuring circuit data |
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Functions |
UNDER, UNDER+SEQ, WIN, WIN+SEQ |
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monitoring of phase sequence and phase failure, |
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connection of neutral wire optional |
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Time intervals (timing adjustment) |
tripping delay (0…30 s) |
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LED indicator |
yellow LED, red LED |
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Measuring circuit |
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• terminals |
(N)-L1-L2-L3 |
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• measuring input |
=supply voltage 3(N)~ 400/230 V |
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• swiching threshold Us |
max: 0,8< In < 1,3 min: 0,7 < In < 1,2 |
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Input circuit |
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Supply voltage U |
= measuring voltage |
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Rated voltage Un |
3(N)~ 400/230 V |
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Rated frequency |
AC: 48...63 Hz |
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Output circuit |
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Number and type of contacts |
1 C/O - changeover |
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Rated load AC1 |
5 A / 250 V AC |
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Max. breaking capacity AC1 |
1 250 VA |
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Insulation |
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Rated surge voltage |
4 000 V AC |
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Overvoltage category |
III PN-EN 60664-1 |
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Insulation pollution degree |
2, if built-in 3 PN-EN 60664-1 |
Products
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MR-EU31UW1P
Monitoring relay, Contacts:1C/O, Voltage monitoring in 3-phase and 1-phase mains
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