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Mains Frequency Monitor
MK 9143N
- Numero Ordine: 0060936
- Type: MK9143N.38 +/-5Hz UH AC230V
Monitoring of local generator sets and voltage supplies. altro
Descrizione del prodotto
Monitoring of local generator sets and voltage supplies.
Specifiche tecniche
| Measuring range max.: | 50/60 Hz |
| Standard measuring range: | 50/60 Hz |
| 1- / 3-phase: | 1 |
| Operate delay: | Yes |
| Output contacts: | 2 x 1 C/O contacts |
| Width: | 22,5 mm |
| Enclosure design: | Switch cabinet |
| Auxiliary voltage required: | Yes |
| Type: | MK 9143N |
Merkmale
- According to IEC / EN 60255-1
- Monitoring of 50 - and 60 Hz-current supply on over- and underfrequency
- Monitoring of local generator sets and voltage supplies
- For precise frequency measuring with fast response time
- High disturbance immunity
- Separately adjustable trip points and separate outputs for over and underfrequency (1 or 2 c/o each)
- MK 9143N / MH 9143:
- Trip points adjustable precisely and reproducible on 10 step rotational switch in the range of ± 0,1 Hz to ± 5 Hz related to 50 or 60 Hz
- Nominal frequency 50 or 60 Hz selectable
- Fixed hysteresis optimised for trip point
- Time delay for over and underfrequency each adjustable from 0 to 20 s
- As option one common output for under and overfrequency “Window”-mode (MK 9143N/400 / MH 9143/400) - MH 9143.38/008: with galvanic separated analogue output (current/voltage) and 11 step LED chain for the actual frequency
- MK 9143N/600 / MH 9143/600:
- Variable alarm value in the range of 45 to 65 Hz
- Hysteresis adjustable for under- and overfrequency separately adjustable 0 …20%
- Common output for under and overfrequency “Window”-mode can be selected - Start up delay 0…30 s selectable
- Manual or auto reset selectable
- Output relay energized or de-energized on trip selectable for overfrequency
- Output relay de-energized on trip for underfrequency
- Universal frequency measuring input for AC 40 … 550V
- Several options for auxiliary supply
- As option without aux. supply for voltage range AC 18 … 70 V or 70 … 275V
- LED indicators for auxiliary supply, input frequency, over and under frequency alarm
- 2 possible contact arrangements
MK 9143N and MK 9143N/600: 2 x 1 C/O contacts, width 22,5 mm
MH 9143 and MH 9143/600: 2 x 2 C/O contacts, width 45 mm