Dold Frequency Monitoring Relay, DPDT, 15 → 280V ac, DIN Rail

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Sous-total (1 unité)*

264,40 €

(TVA exclue)

319,92 €

(TVA incluse)

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  • Expédition à partir du 12 janvier 2026
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Unité
Prix par unité
1 +264,40 €

*Prix donné à titre indicatif

N° de stock RS:
181-2791
Référence fabricant:
MK9837N.12/050 5-600Hz UH=DC24V
Fabricant:
Dold
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Marque

Dold

Monitoring Application

Frequency

Contact Configuration

DPDT

Voltage Sensing Range

15 → 280 V ac, 30 → 550V ac

Mounting Type

DIN Rail

Time Delay

0 → 100 s, 0 → 50s

Frequency Sensing Range

5 → 600Hz

Series

MK9837N

Frequency Sensitivity

Overfrequency, Underfrequency

Terminal Type

Screw

Minimum Frequency Sensed

5Hz

Operating Temperature Range

+60°C

Maximum Voltage Sensed

280 V ac, 550V ac

Length

97mm

Maximum Frequency Sensed

500Hz

Maximum Operating Temperature

+60°C

Width

22.5mm

Height

90mm

Minimum Operating Temperature

-20°C

Minimum Voltage Sensed

15 V ac, 30V ac

Dimensions

97 x 22.5 x 90mm

Pays d'origine :
DE
Detection of over- or under frequency of alternating voltage (adjustable function)
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
Adjustable hysteresis
Adjustable monitoring time for missing input signal at function over frequency
Response delay programmable via terminals 0 ... 100 s
Alarm storing or auto-reset programmable via terminals
Galvanic separation between measuring input, auxiliary voltage and output contacts
MH 9837 available with wide input range for auxiliary supply (AC/DC 24 ... 60 V or AC/DC 110 ... 230 V)
2 changeover contacts, closed circuit operation
Open circuit operation on request
LED indication for auxiliary voltage, measuring voltage and alarm status
MH 9837.12/008: with galvanic separated analogue output (current/ voltage) and 11 step LED chain for the actual frequency
Device available with 2 response values and separately controlled output relays for under- and over frequency see MK 9837N/500

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