Cookie preferences
This website uses cookies, which are necessary for the technical operation of the website and are always set. Other cookies, which increase the comfort when using this website, are used for direct advertising or to facilitate interaction with other websites and social networks, are only set with your consent.
Configuration
Technically required
These cookies are necessary for the basic functions of the shop.
"Allow all cookies" cookie
"Decline all cookies" cookie
CSRF token
Cookie preferences
Currency change
Customer recognition
Customer-specific caching
Individual prices
Selected shop
Session
Comfort functions
These cookies are used to make the shopping experience even more appealing, for example for the recognition of the visitor.
Note
Show the facebook fanpage in the right blod sidebar
Statistics & Tracking
Affiliate program
Google Tag Manager
Track device being used
Mains Frequency Monitor
MK 9143N
- Article number: 0060936
- Type: MK9143N.38 +/-5Hz UH AC230V
The MK 9143N and MH 9143 mains frequency monitors are used to monitor the frequency of 50 and 60... more
Product description
The MK 9143N and MH 9143 mains frequency monitors are used to monitor the frequency of 50 and 60 Hz power supplies for over- and underfrequency. They are used for monitoring self-generating systems and local power supplies, as well as for monitoring generators, power units, etc.
Technical specifications
| 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 |
Advantages
- Monitoring of 50 - and 60 Hz-current supply on over- and underfrequency
- For precise frequency measuring with fast response time
- High disturbance immunity
- Separately adjustable trip points and separate outputs for overand underfrequency (1 or 2 c/o each)
Features
- According to IEC / EN 60255-1
- Monitoring of local generator sets and voltage supplies
- 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 … 550 V
- Several options for auxiliary supply
- As option without aux. supply for voltage range AC 18 … 70 V or 70 … 275 V
- 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