Dold Frequency Monitoring Relay, DPDT, 15 → 280V ac, DIN Rail
- RS Stock No.:
- 181-2791
- Mfr. Part No.:
- MK9837N.12/050 5-600Hz UH=DC24V
- Brand:
- Dold
1 In stock for delivery within 1 working days
Not available for guaranteed pre 9am/10am delivery
Added
Price Each
£219.98
(exc. VAT)
£263.98
(inc. VAT)
| Units | Per unit |
| 1 + | £219.98 |
- RS Stock No.:
- 181-2791
- Mfr. Part No.:
- MK9837N.12/050 5-600Hz UH=DC24V
- Brand:
- Dold
Technical Reference
Legislation and Compliance
- COO (Country of Origin):
- DE
Product Details
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
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
Specifications
Attribute | Value |
|---|---|
| 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 |
| Minimum Voltage Sensed | 15 V ac, 30V ac |
| Dimensions | 97 x 22.5 x 90mm |
| Operating Temperature Range | +60°C |
| Minimum Frequency Sensed | 5Hz |
| Length | 97mm |
| Maximum Frequency Sensed | 500Hz |
| Maximum Operating Temperature | +60°C |
| Width | 22.5mm |
| Height | 90mm |
| Terminal Type | Screw |
| Frequency Sensitivity | Overfrequency, Underfrequency |
| Maximum Voltage Sensed | 280 V ac, 550V ac |
| Minimum Operating Temperature | -20°C |
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