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This time delay unit is an auxiliary that can be combined with an undervoltage release (MN). It must be associated with a 380-480 VAC MN undervoltage release. It eliminates the risk of nuisance tripping due to transient voltage dips lasting from 200ms to 3s. Its power supply is 380-480VDC or 380-480VAC 50/60Hz. This time delay unit has 4 adjustable steps (0.5s - 1s - 1.5s - 3s). It is an external accessory and can be mounted in the switchboard.
Products specifications
| Attribute name | Attribute value |
|---|---|
| Main | |
| Device short name | MN delay unit |
| Device application | control |
| Range | MasterPacT |
| Range of product | ComPact NS1600b...3200, ComPact NS630b...1600 |
| Voltage release type | undervoltage release |
| Product or component type | time delay relay |
| Range compatibility | Masterpact MasterPact NW DC, Masterpact MasterPact NT UL 489, Masterpact MasterPact NW UL 489, ComPact ComPact NS1600b...3200, ComPact ComPact NS630b...1600, Masterpact MasterPact NW, Masterpact MasterPact NT |
| [Uc] control circuit voltage | 380...480 V DC, 380...480 V AC 50/60 Hz |
| Complementary | |
| Mounting mode | external mounting |
| Impulse duration | 200 ms |
| Supply inrush power | 200 VA |
| Supply holding power | 4.5 VA |
| Threshold tripping voltage | 0.85 Un close, 0.35...0.7 Un open |
| Response time | 3 s, 1.5 s, 1 s, 0.5 s |
| Time delay range | 0.5...3 s |
| Accessory / separate part category | spare part for Compact NS1600b...3200, spare part for Compact NS630b...1600 |
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