JK140MID - Energy meter HAGER - Free user manual and instructions

Product Type	MID-Certified Single-Phase Energy Meter
Model	JK140MID
Brand	Hager
Dimensions (H x W x D)	110 x 85 x 60 mm
Weight	250 g
Power Supply	230 V AC, 50 Hz
Rated Current	5(40) A or 5(65) A
Accuracy Class	Class B (EN 50470-3) or Class 1 (IEC 62053-21)
Display	6-digit mechanical or LCD register
Communication	Pulse output (LED/MOS) for remote reading
Protection Degree	IP51
Operating Temperature	-25°C to +55°C
Storage Temperature	-40°C to +70°C
Standards Compliance	MID 2004/22/EC, EN 50470-1/3
Installation Type	DIN-rail mounted (35 mm)
Terminal Capacity	Up to 25 mm² wire
Maintenance	No periodic maintenance required; keep dry and clean
Cleaning	Wipe with dry cloth; do not use solvents
Safety Features	Overload protection, housing insulation class II
Spare Parts / Repairability	Non-repairable; replace entire unit if faulty
Country of Origin	France (likely)

Frequently Asked Questions - JK140MID HAGER

What type of energy meter is the Hager JK140MID?

It is a MID-certified single-phase energy meter, suitable for residential and light commercial use.

What is the accuracy class of the JK140MID?

The meter typically meets Class B per EN 50470-3 or Class 1 per IEC 62053-21, ensuring precise energy measurement.

How do I install the Hager JK140MID meter?

Mount it on a 35 mm DIN rail inside a suitable enclosure. Connect the phase and neutral wires to the corresponding terminals, and ensure the supply is turned off during installation.

How do I read the energy consumption from the meter?

The meter has a 6-digit display showing total kilowatt-hours (kWh). Some models feature an LCD; read the value from left to right, ignoring any decimal places if present.

What does the pulse output on the meter do?

The pulse output provides a LED or solid-state signal proportional to energy consumption. It can be used for remote monitoring or verification with testing equipment.

Can I use the JK140MID for sub-metering?

Yes, it is suitable for sub-metering applications in apartments, offices, or shops, as long as the total current does not exceed the rated maximum.

What is the maximum current the meter can handle?

The meter has a rated current of 5(40) A or 5(65) A, meaning it can continuously carry 5 A and short-term up to the bracketed value.

How do I clean the meter?

Simply wipe the exterior with a dry, soft cloth. Avoid water, solvents, or abrasive cleaners to prevent damage.

What should I do if the meter displays an error or stops working?

First, check the supply voltage and connections. If the display remains blank or shows unusual values, the meter may be faulty and must be replaced—it is not field-repairable.

Is the Hager JK140MID compatible with smart home systems?

Directly no, but the pulse output can be interfaced with energy management systems or pulse counters for integration.

USER MANUAL JK140MID HAGER

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

● Four module DIN rail mounted
● Energy pulse LED
- Input from easywire® Current Transformers
● Three phase network compatible
● Programmable voltage and current transformer ratio
● True RMS measurement
- MID B+D Certified
● High definition white backlit LCD display
● Simple programming and operation
● Pulse output and Modbus communication or Mbus
● Voltage OUT connector for daisy-chaining up to 32 meters from one supply

MID

Product Description

The HGR41EW series are part of the easywire ^® family of meters. The easywire ^® system has been designed to save up to 90% installation time compared to a standard meter and current transformer installation.

This MID approved DIN rail mounted multifunction energy meters is suitable for monitoring energy consumption and many other electrical parameters in industrial and commercial applications. These meters may be used in three phase applications and have been certified for billing purposes.

A high efficiency white backlit LCD display provides clear indication of measured values in all light conditions.

Push-buttons on the front of the meter allow the user access to the display page required.

The meter is available in two versions:-

- With single pulse output and RS485 Modbus communication

- With single pulse output and Mbus communication

The unit is housed in a compact four module width housing suitable for DIN rail mounting.

Displayed Parameters

Voltage - L-L, L-N and average

Current - per phase and average

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 (total)

Communications Part Number

RS485 Modbus and Single Pulse kWh Output HGR41EWC

Mbus and Single Pulse kWh Output HGR41EWMB

MID

MID APPROVED FOR BILLING APPLICATIONS Measuring Instruments Directive

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 scale

Current 0.5% of full scale

Frequency 0.1% of full scale (L-N >20V)

Power factor 1% of unity

Active 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 menu

NOTE: 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 current

VT primary voltage

VT secondary voltage

Communication address

Communication speed (Baud)

Communication Parity

Communication number of stop bits

Back-light time-out period

Demand period (for integration)

Pulse duration

Pulse output (kWh)

Reset to Factory Default

Reset Energy and Maximum Demand

Reset Active Energy

Reset Reactive Energy

Reset Apparent Energy

Reset Maximum Current

Reset Maximum Active Power

Reset Minimum Active Power

Reset Maximum Reactive Power

Reset Minimum Reactive Power

Reset 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 inputeasywire	^ - 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	1
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	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 - 1 CT

Dimensions

Model Selection Table

Communications Part Number

RS485 Modbus and Single Pulse kWh Output HGR41EWC

Mbus and Single Pulse kWh Output HGR41EWMB