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DMK75R1 – 3PH D/V-A-W-METER 220-240VAC C/W P/R OUT
Lovato DMK75R1 three-phase True RMS DIN rail voltmeter, ammeter and wattmeter with active power monitoring, programmable relay output and LED display.
£234.10
Why Choose the Lovato DMK75R1 Three-Phase Digital Voltmeter, Ammeter and Wattmeter?
The Lovato DMK75R1 is a compact three-phase digital voltmeter, ammeter and wattmeter designed for comprehensive electrical monitoring in industrial switchboards, machinery panels and power distribution systems. Housed in a space-saving 3-module DIN rail enclosure, it combines multiple electrical measurements within a single instrument, reducing panel space requirements while simplifying installation.
Using True RMS measurement, the DMK75R1 provides dependable readings even where electrical waveforms contain harmonic distortion generated by variable speed drives, UPS systems or other non-linear loads. It measures phase and line voltages, phase currents and active power for each phase together with total three-phase power, making it ideal for monitoring electrical system performance.
The instrument also stores minimum and maximum measured values and incorporates a programmable relay output for alarm, control and protection functions. Its DIN rail mounting format makes it suitable for new electrical installations as well as retrofit monitoring applications where enclosure space is at a premium.
Key Advantages
- Combined three-phase voltmeter, ammeter and wattmeter.
- True RMS measurement for reliable readings on distorted waveforms.
- Displays phase voltages, line voltages, phase currents and active power.
- Stores minimum and maximum measured electrical values.
- Programmable relay output for alarm and protection functions.
- Indirect current measurement using 5 A current transformers.
- Compact 3-module DIN rail mounting.
Key Features
- Lovato DMK digital metering instrument series.
- Three-phase voltmeter, ammeter and wattmeter.
- Three phase-to-neutral voltage values.
- Three phase-to-phase voltage values.
- Three phase-current values.
- Four active power values including total system power.
- Minimum and maximum value memory.
- One programmable relay output.
- True RMS voltage and current measurement.
- 220 to 240 V AC auxiliary supply.
- DIN rail mounting.
Efficient Three-Phase Electrical Monitoring
The Lovato DMK75R1 enables engineers to monitor voltage, current and active power from a single DIN rail instrument, simplifying fault diagnosis and routine electrical supervision. Displaying both individual phase values and total active power provides valuable information for identifying load imbalance, excessive demand and abnormal operating conditions.
Its programmable relay output enables automatic alarm signalling or control actions when user-defined thresholds are exceeded, making the DMK75R1 suitable for preventative maintenance, machinery protection and energy monitoring applications.
Typical Applications
- Industrial switchboards.
- Electrical distribution panels.
- Motor control centres.
- Generator monitoring.
- Manufacturing machinery.
- Power monitoring and load supervision.
- Commercial electrical installations.
- Alarm and protection systems.
Technical Specifications
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| Measurement Connection Type | CT connection | |
|---|---|---|
| Current Input Rating (A) | 5 A | |
| Device Type | Energy meter | |
| Voltage | 240 V | |
| Manufacturer | Lovato Electric | |
| Series | DMK | |
| Model | DMK75R1 | |
| Product type | Three-phase digital voltmeter, ammeter and wattmeter | |
| Mounting type | DIN rail | |
| DIN width | 3 modules | |
| Display | LED | |
| Measured parameters | Voltage, current and active power | |
| Measurement method | True RMS | |
| Rated phase-to-phase voltage | 600 V AC | |
| Rated phase-to-neutral voltage | 347 V AC | |
| Phase-to-phase measuring range | 35 to 660 V AC | |
| Phase-to-neutral measuring range | 20 to 382 V AC | |
| Voltage frequency range | 45 to 66 Hz | |
| Rated current input | 5 A | |
| Current measuring range | 0.05 to 5.75 A | |
| Current connection | External 5 A current transformer | |
| Maximum displayed primary current | Up to 10,000 A with suitable CT | |
| Voltage accuracy | ±0.25% full scale ±1 digit | |
| Current accuracy | ±0.5% full scale ±1 digit | |
| Active power accuracy | ±1% full scale ±1 digit | |
| Auxiliary supply | 220 to 240 V AC, 50/60 Hz | |
| Maximum power consumption | 3.6 VA | |
| Maximum power dissipation | 1.8 W | |
| Relay output | 1 programmable output | |
| Front protection rating | IP40 | |
| Terminal protection rating | IP20 | |
| Dimensions (W × H × D) | 53.5 × 105.4 × 63.1 mm | |
| Operating temperature | -20 to +60 °C | |
| Weight | approximately 282 g | |
| EAN | 8013975152249 | |
| HS Code | 90303100 |
Frequently Asked Questions
What does the Lovato DMK75R1 measure?
The DMK75R1 measures three-phase voltage, current and active power, including individual phase values and total active power.
Does the DMK75R1 require current transformers?
Yes. It is designed for indirect measurement using external current transformers with a 5 A secondary output.
Does the DMK75R1 use True RMS measurement?
Yes. The instrument uses True RMS measurement to provide dependable readings even on distorted electrical waveforms.
What is the relay output used for?
The programmable relay output can activate alarms, contactors or external control systems when programmed electrical limits are reached.
How is the DMK75R1 installed?
The meter mounts directly onto a standard 35 mm DIN rail and occupies three DIN modules.
Trusted by Panel Builders and Electrical Engineers
Lovato Electric digital metering instruments are trusted by panel builders, OEMs and maintenance engineers for dependable electrical monitoring, protection and power management in industrial and commercial applications.
