JKD166MID - Energy consumption meter HAGER - Free user manual and instructions

Product Type	Energy Consumption Meter
Brand	Hager
Model	JKD166MID
Category	Energy Meter
Dimensions (W x H x D)	72 x 90 x 65 mm (4 DIN modules)
Weight	Approximately 200 g
Mounting	DIN rail (EN 60715)
Power Supply	Self-powered from measured circuit (230 V AC, 50 Hz)
Measurement Type	Active energy (kWh), bidirectional
Accuracy Class	B (MID certified)
Display	LCD, 8 digits
Pulse Output	1 pulse per kWh (SO interface)
Rated Current	65 A (direct)
Operating Temperature	-25°C to +55°C
Protection Class	IP20 (indoor use)
Maintenance	Clean with a dry cloth; do not use solvents
Safety	Installation must be carried out by a qualified electrician
Spare Parts & Repairability	No user-serviceable parts; dispose of at end of life per local regulations
General Information	MID approved, suitable for residential and commercial submetering

Frequently Asked Questions - JKD166MID HAGER

How do I install the Hager JKD166MID energy meter?

Installation must be performed by a qualified electrician. Mount the meter on a DIN rail (EN 60715) in a suitable enclosure. Connect the supply and load wires according to the wiring diagram on the device label.

Can I reset the energy reading on the meter?

No, the total energy reading is non-resettable to ensure billing integrity. The meter stores cumulative consumption.

What is the accuracy of the JKD166MID?

The meter has accuracy class B as per MID standards, suitable for billing purposes. Typical error is within ±1%.

Does the meter support bidirectional energy measurement?

Yes, the JKD166MID measures imported and exported active energy, making it suitable for solar installations with net metering.

How do I connect the pulse output?

The pulse output is an SO interface (open collector). Connect to a pulse counter or energy management system. The pulse rate is typically 1 pulse per kWh.

What is the maximum current the meter can handle directly?

The meter can handle up to 65 A directly (without current transformers). For higher currents, use external CTs.

Can I use this meter outdoors?

No, the meter has IP20 protection and is intended for indoor use only. Install it in a dry, weatherproof enclosure.

How do I read the display?

The LCD shows 8 digits representing total kWh. It may also show other parameters like instantaneous power (depending on model variant). Refer to the manual for display modes.

What does MID certification mean?

MID (Measuring Instruments Directive) certification ensures the meter meets European standards for accuracy and reliability for billing and legal metrology.

How do I clean and maintain the meter?

Clean the exterior with a dry cloth. Do not use water, solvents, or abrasive cleaners. No internal maintenance is required.

USER MANUAL JKD166MID 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"]
    B --> D["Voltage OP"]
    C --> E["L1"]
    D --> F["L2"]
    E --> G["LOAD"]
    F --> G
    G --> H["L3"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#ffc,stroke:#333
    style F fill:#cfc,stroke:#333
    style G fill:#fcc,stroke:#333

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