Dold Frequency Monitoring Relay, SPDT, DIN Rail

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Subtotal (1 unit)*

R 5 633,12

(exc. VAT)

R 6 478,09

(inc. VAT)

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1 +R 5,633.12

*price indicative

RS stock no.:
181-2793
Mfr. Part No.:
MK9143N.38 +/-5Hz UH=DC24V tv=0-20s tan=0-30s
Manufacturer:
Dold
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Brand

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

Minimum Frequency Sensed

-5Hz

Height

90mm

Operating Temperature Range

+60°C

Maximum Operating Temperature

+60°C

Maximum Frequency Sensed

+5Hz

Length

97mm

Dimensions

97 x 22.5 x 90mm

Minimum Operating Temperature

-20°C

Width

22.5mm

Terminal Type

Screw

COO (Country of Origin):
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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