SO Pulse Output Integration
Provides one SO Pulse Output for compatible pulse-input devices and data-acquisition systems.
DEM3K001 6 A Three-Phase CT-Operated DIN-Rail Energy Meter with SO Pulse Output
DEM3K001 is a three-phase DIN-rail CT-operated energy meter for 3P3W (Aron) and 3P4W systems, with direct or PT voltage connection. Designed for accurate energy measurement in CT-based installations, it supports CT ratios up to 2000:1, PT ratios up to 350:1 and multiple import/export energy calculation modes. DEM3K001 provides one SO pulse output for external energy monitoring and data acquisition.
CT/PT operated
3P3W (Aron) / 3P4W
MID Certified
MID
54 mm DIN-rail width (3 modules)
5(6) A CT input rating
2000:1 / 350:1 CT / PT max ratio
−40°C to +70°C Operating temperature
Product Highlights
CT-operated pulse-output energy metering
Class 0.5s Active Energy Accuracy
Class 0.5s active-energy measurement in accordance with IEC 62053-21 supports high-precision energy monitoring through external CT/PT.
Flexible CT/PT Ratio Configuration
CT ratio up to 2000:1 and PT ratio up to 350:1. Maximum combined CT × PT ratio of 350000:1.
Compact 3-Module DIN-Rail Design
54 mm-wide DIN-rail housing saves panel space. Mounts on a standard 35 mm DIN rail.
Backlit LCD Display
Backlit LCD displays voltage, current, energy, power and power factor. Automatic scrolling at 5 s interval.
Battery-Free SO Pulse Operation
Provides one SO Pulse Output for connection to external energy monitoring or data-acquisition equipment.
Applications
Applications and Selection Guidance
EV Charging Metering
Solutions for AC/DC charging, billing and charging platform integration.
Explore ApplicationSolar PV & ESS Metering
DC/PV monitoring for inverters, storage systems and distributed energy monitoring.
Explore ApplicationC&I Sub-Metering
Branch metering for buildings, factories, tenants and energy allocation.
Explore ApplicationData Center Energy Metering
Rack, cabinet and distribution power monitoring for data center operations.
Explore ApplicationTechnical Specifications
Technical Specifications
| Connection type | CT / PT (external current and voltage transformers) |
| Wire system | 3P3W (Aron) / 3P4W |
| Rated voltage (Un) | 3 × 57.7/100–230/400 V (3P4W); 3 × 100–400 V (3P3W) |
| Voltage tolerance | 0.8 to 1.15 Un |
| Frequency | 50/60 Hz |
| Current connection | CT (external current transformer) |
| Basic current (Ib) | 5 A |
| Minimum current (Imin) | 0.05 A |
| Maximum current (Imax) | 6 A |
| CT ratio | Up to 2000:1 |
| PT ratio | Up to 350:1 |
| CT × PT ratio (max) | 350000:1 |
| Power consumption | ≤2 W / 10 VA |
| Pulse constant | 10000 imp/kWh |
| Voltage accuracy | ±0.5 % |
| Current accuracy | ±0.5 % |
| Frequency accuracy | ±0.5 % |
| Active power accuracy | ±0.5 % |
| Reactive power accuracy | ±1 % |
| Active energy accuracy | Class 0.5s |
| Reactive energy accuracy | Class 1 |
| Output type | SO pulse output (1 channel) |
| Display and controls | Backlit LCD, 500 ms refresh, page navigation and setting buttons |
| LED indicator | Red pulse LED |
| Metering functions | Energy, power, power factor and harmonic monitoring |
| Energy calculation | Forward, reverse, absolute-value, algebraic-sum and net-energy modes |
| Tariff function | Not supported |
| Diagnostics and alarms | EEP self-diagnostics and configurable monitoring alarms |
| Other functions | Local firmware upgrade, wiring check, screen saver, page filter and runtime-hour counter |
| Operating temperature | −40°C to +70°C |
| Ingress protection | IP20; install in an IP54 outdoor or IP51 indoor enclosure |
| Overvoltage category | OVC III |
| Protection class | Class II |
| Rated impulse withstand voltage | 6 kV |
| Applicable standards | IEC 62052-11:2020 / IEC 62053-21:2020 / EN 50470-3:2022 |
Structure & Dimensions
DEM3K001 Dimensions & Wiring
Dimensions
Wiring
FAQ
Product FAQ
What is DEM3K001?
DEM3K001 is a 3P DIN-rail, CT-operated 3P3W (Aron) / 3P4W energy meter rated up to 6 A. It provides one SO Pulse Output, class 0.5s active-energy accuracy and flexible energy calculation for pulse-based submetering.
What connection and wire system does DEM3K001 use?
DEM3K001 uses ct / pt voltage connection with 3P3W (Aron) / 3P4W wiring.
What is the maximum current of DEM3K001?
The maximum current (Imax) is 6 A.
What is the pulse constant of DEM3K001?
The pulse constant is 10000 imp/kWh.
What interface or output does DEM3K001 provide?
It provides one SO Pulse Output for compatible pulse-input integration equipment.
What is the active energy accuracy?
The active energy accuracy is Class 0.5S.
What tariff function is available?
This SO Pulse Output model does not include a tariff function.
Product Downloads
Product Datasheet Download
Datasheet
DEM3K Series Product Datasheet
Official DEM3K series datasheet covering product overview, specifications, wiring and dimensions.
Download PDF- Product overview and features
- Technical specifications
- Wiring diagrams and dimensions
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