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DMK11R1 – FLUSH MOUNT THREE PHASE AMMETER 96 X 48MM
Lovato DMK11R1 three-phase True RMS digital ammeter with three phase-current readings, minimum and maximum value memory, 5 A current transformer inputs and a programmable relay output.
£152.68
Why Choose the Lovato DMK11R1 Three-Phase Digital Ammeter?
The Lovato DMK11R1 is a compact and dependable three-phase digital ammeter designed for continuous AC current monitoring, control and protection in industrial switchboards, motor control centres and machinery panels. It measures and displays the current flowing through each phase, providing operators with a clear overview of electrical loading across a three-phase system.
The instrument uses True RMS measurement to deliver reliable current readings, including in installations where waveform distortion is produced by variable speed drives, electronic power supplies and other non-linear loads. It is designed for connection to external current transformers with a 5 A secondary output, allowing the displayed primary current to be scaled according to the installed CT ratio.
The DMK11R1 records the minimum and maximum current measured on each phase and includes a programmable changeover relay output for control, alarm and protection functions. Its compact 96 × 48 mm flush-mounted housing, removable terminals and IP54 front protection make it well suited to professional electrical panel installations.
Key Advantages
- Accurate three-phase AC current monitoring.
- Displays the current measured on all three phases.
- True RMS measurement for dependable readings on distorted waveforms.
- Stores minimum and maximum current values for each phase.
- Includes a programmable relay output for control and protection.
- Compatible with external current transformers featuring a 5 A secondary.
- Compact 96 × 48 mm flush-mounted format.
Key Features
- Lovato DMK digital metering instrument series.
- Three-phase digital AC ammeter.
- Displays three individual phase-current values.
- Stores three maximum phase-current values.
- Stores three minimum phase-current values.
- One programmable changeover relay output.
- 5 A rated current input.
- 0.05 to 6 A measurement range.
- True RMS current measurement.
- 220 to 240 V AC auxiliary supply.
- Removable terminals for convenient panel wiring.
Reliable Three-Phase Current Monitoring and Protection
Monitoring current across all three phases helps engineers identify overloads, phase imbalance, underloading and abnormal equipment behaviour. By displaying each phase independently, the Lovato DMK11R1 enables operators to compare electrical loading and detect conditions that could reduce efficiency or damage connected machinery.
The programmable relay output extends the instrument beyond basic indication. It can activate an external alarm, switch a contactor or interface with a control system when a configured current condition occurs, making the DMK11R1 suitable for overload supervision, undercurrent detection and automated process protection.
Typical Applications
- Industrial switchboards and electrical distribution panels.
- Motor control centres and machinery cabinets.
- Three-phase motor load monitoring.
- Pump, fan and compressor systems.
- Generator and power supply supervision.
- Overcurrent and undercurrent alarm circuits.
- Manufacturing and process equipment.
- Current monitoring through external 5 A current transformers.
Technical Specifications
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| Measurement Functions | Current | |
|---|---|---|
| Coil / Supply Voltage | 220–240 V AC | |
| Device Type | Ammeter / voltmeter | |
| Phase | Three Phase | |
| Manufacturer | Lovato Electric | |
| Series | DMK | |
| Model | DMK11R1 | |
| Product type | Three-phase digital ammeter | |
| Measurement | Three-phase AC current | |
| Displayed values | Three phase-current values | |
| Stored values | Minimum and maximum current for each phase | |
| Measurement method | True RMS | |
| Rated current input | 5 A | |
| Current measurement range | 0.05 to 6 A | |
| Current input type | External low-voltage current transformers with 5 A secondary | |
| Measurement accuracy | ±0.5% full scale ±1 digit | |
| Current input frequency | 45 to 66 Hz | |
| Continuous overload capacity | 120% of rated current | |
| Short-time withstand current | 50 A for 1 second | |
| Dynamic current limit | 125 A for 10 ms | |
| Self-consumption per phase | Up to 0.6 W | |
| Acquisition time | Approximately 70 ms | |
| Auxiliary supply voltage | 220 to 240 V AC | |
| Auxiliary supply frequency | 50 / 60 Hz | |
| Maximum power consumption | 3.6 VA | |
| Maximum power dissipation | 1.8 W | |
| Relay output | 1 changeover contact | |
| Relay rated voltage | 250 V AC | |
| Relay function | Control, alarm and protection | |
| Installation type | Flush panel mounting | |
| Front dimensions | 96 × 48 mm | |
| Housing material | Thermoplastic | |
| Terminal type | Removable | |
| Conductor cross-section | 0.2 to 2.5 mm² | |
| Maximum terminal tightening torque | 0.5 N·m | |
| Front protection rating | IP54 | |
| Terminal protection rating | IP20 | |
| Operating temperature | -20 to +60 °C | |
| Storage temperature | -30 to +80 °C | |
| Weight | approximately 336 g | |
| Package dimensions | 123 × 58 × 98 mm | |
| EAN | 8013975154786 | |
| Certifications | cULus and EAC | |
| Conformity | IEC/EN 61010-1, IEC/EN 61000-6-2, IEC/EN 61000-6-3, UL508 and CSA C22.2 No. 14 | |
| HS Code | 90303100 |
Frequently Asked Questions
What does the Lovato DMK11R1 measure?
The DMK11R1 measures and displays the AC current flowing through each phase of a three-phase electrical system.
Does the DMK11R1 require current transformers?
Yes. It is designed for connection to external low-voltage current transformers with a 5 A secondary output.
What is the current input range of the DMK11R1?
The instrument has a direct input measurement range of approximately 0.05 to 6 A.
Does the DMK11R1 record minimum and maximum current?
Yes. It stores separate minimum and maximum current values for each of the three monitored phases.
What is the programmable relay output used for?
The relay can operate an external alarm, contactor or control circuit when the measured current reaches programmed control or protection thresholds.
Does the Lovato DMK11R1 use True RMS measurement?
Yes. The meter uses True RMS measurement to provide dependable readings, including where the current waveform is distorted.
Trusted by Panel Builders and Electrical Engineers
Lovato Electric digital metering instruments are used by panel builders, automation engineers and maintenance professionals to provide dependable three-phase current monitoring, alarm signalling and equipment protection across industrial installations.
