Dold Frequency Monitoring Relay, SPDT, DIN Rail

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Subtotaal (1 eenheid)*

€ 264,40

(excl. BTW)

€ 319,92

(incl. BTW)

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  • Verzending vanaf 03 april 2026
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RS-stocknr.:
181-2792
Fabrikantnummer:
MK9143N.38 +/-5Hz UH=AC230V tv=0-20s tan=0-30s
Fabrikant:
Dold
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Merk

Dold

Monitoring Application

Frequency

Contact Configuration

SPDT

Mounting Type

DIN Rail

Time Delay

0 → 20 s, 0 → 30s

Frequency Sensing Range

±5Hz

Series

MK9143N

Frequency Sensitivity

Overfrequency, Underfrequency

Maximum Frequency Sensed

+5Hz

Length

97mm

Dimensions

97 x 22.5 x 90mm

Minimum Frequency Sensed

-5Hz

Operating Temperature Range

+60°C

Terminal Type

Screw

Minimum Operating Temperature

-20°C

Height

90mm

Width

22.5mm

Maximum Operating Temperature

+60°C

Land van herkomst:
DE
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 under frequency (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

As option one common output for under and over frequency “Window”-mode (MK 9143N/400 / MH 9143/400)

Variable alarm value in the range of 45 to 65 Hz

Hysteresis adjustable for under- and over frequency separatelyadjustable 0 …20% Common output for under and over frequency “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

over frequency

Output relay de-energized on trip for under frequency

Universal frequency measuring input for AC 40 … 550V

Several options for auxiliary supply

LED indicators for auxiliary supply, input frequency, over and

under frequency alarm

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