Frequency Relay MH 9837/5_0

Numero Ordine: 0064817
Type: MH9837.38/500 2x1.5-200HZ Tv=0

The frequency relays MK 9837N/5_0 e.g. MH 9837/5_0 are used for frequency monitoring of AC... altro

Descrizione del prodotto

The frequency relays MK 9837N/5_0 e.g. MH 9837/5_0 are used for frequency monitoring of AC voltages. They are used for monitoring the output frequenc of frequency converters (/550) or for monitoring the rotor frequency of slip ring motors. Further area of application ist the monitoring of drives in crane systems.

Specifiche tecniche

Measuring range max.:	600 Hz
Standard measuring range:	1,5 - 600 Hz
1- / 3-phase:	1
Output contacts:	2 x 2 C/O contacts
Width:	45 mm
Enclosure design:	Switch cabinet
Auxiliary voltage required:	Yes
Type:	MH 9837/5_0

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Vorteile / Kundennutzen

Separate output signals for under and over frequency
Simple wiring
Easy handling

Merkmale

According to IEC/EN 60255-1
Monitoring of AC voltage for under and overfrequency, can be used also for pre-warning (monitoring of AC voltage for under or overfrequency see datasheet MK 9837N)
Separate relay outputs for over- or underfrequency (1 or 2 changeover contacts each)
Alternative usage for monitoring of a frequency window
Separate adjustment of response value for over- or underfrequency at 4 ranges each, 1.5 ... 200 Hz or 5 ... 600 Hz
Second response value for prewarning possible
Fast reaction time by measuring duration of cycle of input frequency
Universal measuring input for AC-voltages of 15 ... 280 V as well as 30 ... 550 V
As option with measuring input for inverters
Programmable hysteresis of response value: 2 ... 10 %
Start up time delay programmable via terminals from 0 ... 50 s e.g. continuously
Manual or auto-reset programmable via terminals
Galvanic separation between measuring input, auxiliary voltage and output contacts
MH 9837/508: With galvanic separated analogue output (current/voltage) and 11 step LED chain for the actual frequency
MH 9837/5_0: With wide input range for auxiliary voltage available (AC/DC 24 ... 60 V or AC/DC 110 ... 230 V)
Closed circuit operation (de-energized on trip)
LED indication for auxiliary voltage, measuring voltage and alarm status
Device available with 2 contacts
MK 9837N/5_0: 2 x 1 changeover contact
MH 9837/5_0: 2 x 2 changeover contacts or wide auxiliary voltage range
2 possible compact designs:
MK 9837N/5_0: Width 22,5 mm
MH 9837/5_0: Width 45 mm