JKD2250MID - Energy consumption meter HAGER - Free user manual and instructions

Product Type	Split Load Three Phase Multifunction DIN Rail Energy Meter (MID Certified)
Model	JKD2250MID (HGR42EWC / HGR42EWMB)
Mounting	4 module DIN 43880, snap-on 35mm rail
Dimensions (approx.)	4 modules width (70 mm), height 90 mm, depth 65 mm
Weight	<210 g
Display	LCD, high definition with white back-light
Input Voltage Range	3×100…240 V L-N / 3×173…415 V L-L
Frequency	50 Hz
Current Input	2× easywire® CT – 1 A (330 mV)
CT Primary Current (programmable)	5…6000 A
Active Energy Accuracy	Class 1, Class B (IEC/EN62053-21, IEC/EN50470)
Reactive Energy Accuracy	Class 2 (IEC/EN62053-23)
Measurement Parameters	Voltage, current, power factor, frequency, active/reactive/apparent power, energy, max demand
Pulse Outputs	2 x kWh pulse outputs, 5…27 VDC, 100 mA max
Communication (option)	RS485 Modbus or Mbus
Programming	Password protected, CT/VT ratios, communication settings, backlight timeout, demand period
Auxiliary Supply	Self-supplied from measuring input
Operating Temperature	-10°C to +55°C
Protection Degree	IP20 (terminals), IP54 (front)
Safety Standards	IEC/EN61010, CAT III, pollution degree 2
Maintenance / Cleaning	Clean with dry cloth; no user-serviceable parts inside
Spare Parts & Repairability	Not user repairable; contact Hager service for replacement
Warranty	Refer to Hager terms

Frequently Asked Questions - JKD2250MID HAGER

How do I install the Hager JKD2250MID energy meter?

Mount the meter on a 35mm DIN rail (4 modules wide). Connect voltage inputs (L1, L2, L3, N) as per wiring diagram. Install easywire® CTs on each load and connect via RJ45 to the meter. Ensure fusing meets specifications (max 3A, fast-acting). Do not energize without proper CT installation.

Can I use this meter with a single-phase supply?

No, the JKD2250MID is designed for three-phase four-wire systems (3×100-240V L-N or 3×173-415V L-L). For single-phase applications, use a single-phase meter.

How do I program the CT and VT ratios?

Enter the programming mode via the front buttons, protected by a user-selectable password (default may be 0000). Navigate to CT primary (5-6000A) and VT primary/secondary (100-600V) settings. Adjust to match your installation. Note: values are locked after 15 minutes of inactivity; factory reset may be needed if locked out.

What communication protocols are available?

Two versions exist: HGR42EWC (RS485 Modbus) and HGR42EWMB (Mbus). Both include two pulse outputs. Modbus settings (address, baud rate, parity) are programmable. Up to 32 meters on one bus, extendable to 255 with repeaters.

How do I read the energy consumption on the display?

The high-definition backlit LCD shows values in auto-scroll or manual mode (press front buttons). Parameters include active/reactive/apparent energy, power, voltage, current, power factor, frequency, and max demand. Resolution depends on CT/VT ratio.

What is the accuracy of the energy measurement?

Active energy meets Class B (IEC/EN50470) and Class 1 (IEC/EN62053-21). Reactive energy is Class 2 (IEC/EN62053-23). Voltage and current accuracy: 0.5% of full scale. Power factor: 1% of unity.

How do I reset the energy or maximum demand values?

In programming mode, you can reset active, reactive, apparent energy, and maximum demand (current, power) individually. The reset is password-protected. Note: resetting energy may require a factory reset to undo.

What is the purpose of the pulse outputs?

Two pulse outputs provide kWh pulses (open collector, 5-27V DC, 100mA max). Pulse duration and resolution (e.g., 0.01kWh/pulse) are programmable. They can drive external counters or PLCs for sub-metering.

Is this meter suitable for billing purposes?

Yes, it is MID B+D certified (Directive 2014/32/EU) and compliant with IEC/EN50470, making it legal for billing and sub-billing applications in commercial and industrial installations.

How do I clean and maintain the meter?

Use a dry, soft cloth to clean the front display. Do not use solvents or water. The meter has no user-serviceable parts; do not open the housing. If faulty, contact Hager support for replacement.

USER MANUAL JKD2250MID HAGER

Split Load Three Phase easywire® Multifunction DIN Rail Energy Meter (MID Certified)

● Four module DIN rail mounted
● Energy pulse LED / High definition white backlit LCD display
- 2 x Inputs from easywire® Current Transformers
● Three phase network compatible
● Independently programmable CT ratios (Load 1 and Load 2)
● Programmable voltage transformer ratio
● True RMS measurement
- MID B+D Certified
● Simple programming & operation / auto or manual page scrolling
- 2 x Pulse outputs and Modbus communication or Mbus
● Voltage OUT connector for daisy-chaining up to 32 meters from one supply

MID

Product Description

The HGR42EW series is part of the easywire ^® family of meters, designed to save up to 90% installation time compared to a standard meter and current transformer installation.

The meters contain two 3 Phase metering circuits in one case, and accept inputs from two separate easywire ^® 3 Phase current transformers while still utilizing the same voltage reference.

This MID approved, 4 module DIN rail mounted multifunction energy meter, is suitable for monitoring energy consumption and other electrical parameters in industrial and commercial applications. This series is particularly suited for use in split-load lighting and power boards, in three phase applications, and have been certified for billing purposes.

A high efficiency white backlit LCD display provides a clear indication of measured values in all light conditions. Front push-buttons allow user access to the display page required. The meter is available in two versions:-

• With two pulse outputs and RS485 Modbus communication.
• With two pulse outputs and Mbus communication

MID APPROVED FOR BILLING APPLICATIONS Measuring Instruments Directive

Displayed Parameters

Voltage - L-L, L-N and average

Current - Per phase and average (LOAD 1 and LOAD 2)

Power Factor - per phase and average

Frequency

Power - Active, Reactive and Apparent (per phase and total)

Power Max. demand - Active and apparent power.

Energy - Active, reactive and apparent (per load and total)

Communications Part Number
Split Load Input with RS485 Modbus Output and Two Pulse Outputs kWh (1 per circuit)	HGR42EWC
Split Load Input with Mbus Output and Two Pulse Outputs kWh (1 per circuit)	HGR42EWMB

Display

Display Type LCD, high definition with white back-light
Digit height 6.35mm (displayed parameter)
Page scrolling Manual by front key / or auto scroll mode
Displayed parameters and accuracies Voltage 0.5%	of full scaleCurrent 0.5% of full scaleFrequency 0.1% of full scale (L-N >20V)Power factor 1% of unityActive power 1%Reactive power 1%Apparent power 1%Active Energy Class 1, Class B (IEC/EN62053-21, IEC/EN50470)Reactive Energy Class 2 (IEC/EN62053-23)
Energy maximum display	9999999
Resolution	0.01K, 0.1K, 1K, 0.01M, 0.1M (depending on CT ratio & VT ratio)

Programming

Parameters that can be changed using programming menuNOTE: Once Programming Mode Is entered The values in red will be locked out after 15 Mins. No further adjustment is possible without return to factory.	CT Primary currentVT primary voltageVT secondary voltageCommunication addressCommunication speed (Baud)Communication ParityCommunication number of stop bitsBack-light time-out periodDemand period (for integration)Pulse durationPulse output (kWh)Reset to Factory DefaultReset Energy and Maximum DemandReset Active EnergyReset Reactive EnergyReset Apparent EnergyReset Maximum CurrentReset Maximum Active PowerReset Minimum Active PowerReset Maximum Reactive PowerReset Minimum Reactive PowerReset Maximum Apparent Power
Programming access	Password protected (user selectable)
Memory retention	Non volatile memory

Input

Connection Three phase four wire
Input voltage range 3 x 100...240V (L - N),	3 x 173...415V (L - L)
Voltage Rated Burden <8VA
Nominal current input 2 xeasywire	^ - 1A (330mV)
Max current (Imax)easywire	^ - 1.2A (396mV)
Current Rated Burden N/A -easywire	^ input
Starting current 2mA (0.66mV)
Short time overcurrent 30 x Imax to IEC/EN62053-21 - 23
Impulse voltage withstand 6kV 1.2/50μS 0.5J
AC voltage withstand 4kV 50Hz for 1 min
CT primary current 5...6000A
VT primary voltage 100...600V
Frequency 50Hz
Current distortion factor According to IEC/EN50470

Auxiliary Supply

Voltage range	Self supplied from measuring input
Operating frequency See input section
Power consumption	See input section

Outputs

Energy pulses
Number of pulse outputs	2
Pulse output function	kWh
Pulse output type	1
Pulse output Max. current	100mA
Pulse output voltage range	5...27VDC
Pulse duration	100ms...2s
Pulse resolution	0.01K, 0.1K, 1K, 0.01M, 0.1M (depending on CT ratio & VT ratio)
Communication - Modbus Version
Communication type RS485
Communication protocol	Modbus
Address	1...255
Number of bits	8bits
Parity	None, odd, even
Baud rate	300, 600, 1200, 2400, 4800, 9600, 19200
Required response time to request	≤100ms
Number of meters connected on the bus	32 (up to 255 with RS485 repeater)
Max distance from Master device	500M

Insulation

Installation category III
Pollution degree 2
Insulation voltage rating 300V (L-N)

Environmental Conditions

Reference temperature 23°C ±2°C
Specified temperature operating range -10°C...+55°C
Storage temperature -20°C...+75°C
Relative humidity 0...85%, non condensing
Mechanical environment M1
Electromagnetic environment E2

Mechanical

Housing
Housing 4 module DIN 43880
Mounting Snap-on 35mm rail
Tamper sealing	Meter housing (by means of a tamper evident seal). Sealable terminal covers.
Housing material	Self-extinguishing polycarbonate (UL94 V-0)
Protection degree (IEC/EN60529)	IP20 (terminals), IP54 (front of housing)
Weight	<210g
Termination
Current input terminal type	2 x RJ45
Max. wire size	N/A
Voltage input terminal type	Pluggable terminal block - Screw clamp type
Max. wire size	2.5mm^2
Voltage output terminal type	Pluggable terminal block - Screw clamp type
Max. wire size	2.5mm^2
Communication output (RS485 and Pulse)	Pluggable terminal block - Screw clamp type
Max. wire size	1.5mm^2

Conformity

Electromagnetic compatibility	IEC/EN61326-1, IEC/EN55011 Class A, IEC/EN61000-4-2, -3, -4, -5, -6, -8, -11IEC/EN50470-1/3
Accuracy and functionality	IEC/EN50470-1/3, IEC/EN62053-21, IEC/EN62053-23, DIRECTIVE 2014/32/EU
Safety	IEC/EN61010, IEC/EN62053-31

Wiring Diagrams

Note: # All fuse types : Class CC UL type fast acting 600V

Max. 3A (Actual rating is dependent on the number of meters connected to the voltage supply and must be determined during system design).

3 Phase 4 Wire - 2 CT

graph TD
    A["CT Input"] --> B["RS485 NC PULSE OUTPUT"]
    B --> C["Voltage I/P"]
    C --> D["Voltage OP"]
    D --> E["N L3 L2 L1"]
    F["LINE"] --> G["1"]
    G --> H["2"]
    H --> I["3"]
    I --> J["4"]
    J --> K["5"]
    K --> L["6"]
    L --> M["7"]
    M --> N["8"]
    N --> O["9"]
    O --> P["10"]
    P --> Q["11"]
    Q --> R["12"]
    R --> S["13"]
    S --> T["14"]
    T --> U["15"]
    U --> V["16"]
    V --> W["17"]
    W --> X["18"]
    X --> Y["19"]
    Y --> Z["20"]

Dimensions

Model Selection Table

Communications Part Number
Split Load Input with RS485 Modbus Output and Two Pulse Outputs kWh (1 per circuit)	HGR42EWC
Split Load Input with Mbus Output and Two Pulse Outputs kWh (1 per circuit)	HGR42EWMB