Mitsubishi Electric EMU4-HD1-MB User Manual

Energy Measuring Unit

Model EMU4-BD1-MB

User’s Manual (Digest

・Before using this unit, please read both this manual and Details carefully and pay attention to safety to handle this unit correctly.
・Make sure that the end users read this manual and then keep the manual in a safe place for future reference.

ABOUT MANUALS
You can download User’s manual (Details) of this unit from the following site.
http://www.mitsubishielectric.co.jp/haisei/lvs/downloads/handling.htm

EMU4-HD1-MB

)

If you are considering using this unit for special purpose such as nuclear power plants,

aerospace, medical care or passenger vehiclesplease refer to our sales representative.

1. Features

(1)

This Energy Measuring Unit can measure various types of electric quantity such as voltage, current, electric power and electric energy.

(2)

The measurement data can also be transmitted to superior monitoring systems through MODBUS®RTU communication.

(3)

In addition to the provision for measuring the quantity of electricity, the un

With pulse input set, you can measure the production volume or the utility other than electricity, such as water, gas and air.
With contact input set, you can monitor status or alarm and measure the operating time of facility or the operating power.

MODBUS® is registered trademarks of Schneider Electric SA

it has two external input ports supporting both pulse input and contact input by way of switching (EMU4-HD1-MB).

2. Checking package contents

This following items for this device and included in package. Check that no items are missing.
(1)

Energy Measuring Unit

x1

(2)

User’s Manual (Digest) x1

3. Safety Precautions

3.1 Precautions for Operating Environment and Conditions

This unit is premised on being used in pollution degree 2* environment. When used in higher pollution degree, protect this unit from pollution on another device side to be incorporated.
Over voltage category of measuring circuit in this unit is CAT II*, and that of auxiliary power circuit (MA, MB) is CAT II*.
Do not use this product in the places listed below. Failure to f

・Places the Ambient temperature exceeds the range -5 - +55°C. ･Places the average daily temperature exceeds 35°C.
・Altitude exceeds 1000m. ・Dust, corrosive gas, saline and oil smoke exist.
・Places in strong electromagnetic field or places large amounts of external noise exist. ・Vibration and impact exceed the specifications.
・Places exposed to direct sunlight ・Places metal fragments or conductive sub
・Places exposed to rain or water drop. ・Places the Relative humidity exceeds the range 30-85% or places with dewfall.

This unit is the open type device, which are designed to be housed within another device for prevention of electric shock. House this unit within the device such as the control panel before use.
For the precautions for the compliance of the system incorporating this unit with the EMC Directives, refer to the User’s Manual (Details).
*: For the definition of the pollution degree and the over voltage category, refer to EN61010-1/2010.

3.2 Matters concerning the precaution before use

・Use the unit in the specified usage environment and conditions.
・The setting of this unit(phase system, primary voltage and primary current, sensor type) is necessary before use it. Please refer to User’s Manual (Details) about each setting method.

3.3 Installation and Wiring Precautions

Any person who is involved in the installation and the wiring of this unit should be fully competent to do this work.

D

anger

Caution

・Shut off the external power supply for the unit in all phases before installing or wiring. Failure to do so may cause an electric shock or damage of this unit.

・Work under the electric outage condition when installing and wiring. Failure to do so may cause electric shock, a failure of the unit, a fire etc.
・When tapping or wiring, take care not to entering any foreign objects such as chips and wire pieces into this unit.
・Check the connection diagram when wiring. Wrong wiring may cause failure of the unit, a fire or electric shock.
・For protection against noise, transmission lines and input/output lines shall not be placed close
・Strip the wires with proper length. Overlong stripping length may cause short to next wire. Shorter stripping length may cause contact failure.
・Take care not to short to next terminal by a filament. (Do not plate the wires with solder.
・Do not connect more than two wires to one terminal of a terminal block for preventing loose contact and wires dropout.
・Use appropriate size of electric wires. If inappropriate size of electric wire is used, it may cause a fire due to
・Tighten the screw within the specified torque. Under tightening can cause drop of the screw, short circuit or malfunction. Over tightening can damage th e screw and/or unit, resulting in

drop, short circuit or malfunction.

・After tightening the screws, be sure to check all the screws tightened. Loose screw may cause malfunction of the unit, a fire or electric shock.
・Be sure to attach the terminal cover to prevent electric shock.
・Use the crimp-t

device malfunction, a failure, a burnout or a fire.

・FG terminal must be grounded according to the D-type ground (ground resistance is not exceed 100Ω).
High-voltage protective element is mounted between MA and FG, MB and FG. When applied high voltage, for example during a commercial frequency wi

element works to short between MA and FG, MB and FG.

・Do not directly touch any conductive part of the unit. Doing so can cause electric shock, failure or malfunction of the unit.
・When using this product, make sure to use it in combination with current sensor (EMU-CT50/CT100/CT250/CT400/CT600, EMU2-CT5 and EMU2-CT5-4W).Please not to exceed the

rating of this product for input of current sensor. For further details, please refer

・The dedicated current sensor (EMU-CT50/CT100/CT250/CT400/CT600) is used onl y for low voltage circuit. It cannot be used for a high voltage circuit. EMU2-CT5 and CT5-4W should

be used with the secondary side (5A) of transformer transfixed. If it is connected with a high -voltage circuit by mistake, it may cause a burnout of the device and a fire. It is critically
dangerous

・The dedicated current sensor has a polarity (directionality). Be careful about it when installing the unit.
・The wires to be connected to this unit shall be placed in a duct or fixed together by cramping. If the electric wires are not placed in the duct or cramped together, loosen wires or their

movement or careless stretch may

・If the wires connected to this unit are strongly pulled off, it may cause a malfunction or a breakage to the unit or the wire.
・Do not exceed the specified voltage when doing an insulation resistance test and a commercial frequency withstand voltage test.
・To prevent persons with little knowledge about electric equipment from electric shock, panel must be taken either following measure.

Lock the panel so that only those who get an education about electric equipment and have sufficient knowledge can unlock, or shut off power supply automatically by opening the panel.
Cover the dangerous part of this unit.

ype terminal appropriated for the size of electric wires. If inappropriate crimp-type terminal i s used, a wire breakage or a contact failure may occur, which may caus e a

. For the allowable maximum voltage of current sensor, refer to User’s manual (Details) 13 “Option devices” (1) Specifications.

ollow the instruction may cause malfunctions and a life decrease of product.

stance are flying.

to or bound together with the power lines and high-voltage lines.

)

generated heat.

thstand voltage test, protective

to current sensor manual to maintain the functionality and the accuracy of this product.

cause a breakage of the unit or wire or a malfunction due to poor contact of electric wires.

3.4 Precautions for Use

・Use this unit within the ratings specified in this manual. If it is used outside the ratings, it may cause not only malfunction or failure but also fire burnout.

Caution

3.5 Maintenance Precautions

・Use a soft dry cloth to clean off dirt of the unit surface. Do not let a chemical cloth remain on the surface for an extended period of time nor wipe the surface with thinner or benzene.
・Check for the following items to use this unit properly for long time.

(1)

(2)

Caution

3.6 Storage Precautions

To store this unit, turn off the power and remove wires, and put it in a plastic bag.
For long-time storage, avoid the following places. Failure to follow the instruction may cause a failure and reduced life of the unit.

・Places the Ambient temperature exceeds the range -10 - +60°C. ・Vibration and impact exceed the specifications.
・Places the Relative humidity exceeds the range 30-85% or places with dewfall. ・Places exposed to rain, water drop
・Dust, corrosive gas, saline and oil smoke exist. ・Places metal fragments or conductive substance are flying.
・Places the average daily temperature exceeds 35°C.

3.7 Disposal Precautions

When disposing of this unit, treat it as industrial waste.

3.8 About packaging materials and this manual

For reduction of environment load, packaging materials are produced with cardboard, and this manual is printed on recycled paper.

・Do not disassemble or modify this unit. It may cause failure, malfunction, injury or fire.
・Do not touch the live part such as connection terminal. It may cause electric shock, electric burn injury or burnout of the device. If any exposed conductor is found, stop the operat

immediately, and take an appropriate action such as isolation protection.

Daily maintenance

(a) No damage on this unit

Periodical maintenance (Once every 6 months to 1 year

・No looseness with installation

Do periodical maintenance under the electric outage condition. Failure to do so may cause electric shock, failure of the unit or a fire. Tighten the terminal regularly to prevent a fire. In

case a display unit is attached to a sensor unit, get off the display unit during maintaining or tightening terminals.

(b)

No abnormality with LCD

and wire connection

(c)

)

No abnormal noise, smell or heat

or direct sunlight.

ion

4. Name and function of each part

4.1 Name of each part

(1)

EMU4-BD1-MB

Voltage input terminals

Current input terminals

Frame GND terminal

Power supply terminals

Communication terminals

(

MODBUS® RTU

)

4.2 Functions of operation buttons

Control buttons have many functions as below.

DISP button

+/PHASE button

-/RESET button

SET button

Meaning of symbol: ○ (Press), □ (Press more than 1 sec), ◎ (Press more than 2 sec), - (Press both at the same time

Mode

Operation

Mode

Contact display

Integrated value

display

Menu display

Setting mode /
Setting display

Setting mode /

Confirmation

mode

Confirmation

mode / Setting

display

Confirma

display of setting

reflection

5. Procedures for setting

Operation mode

Measurement display

"End" display

Fix change of
setting value

"CANCEL" display

Cancel change
of setting value

Transition automatically

Example of display on
setting mode

"-" + "DISP"

Factroy default

Example of display on
confirmation mode

<Note>
For details of setting menu 1, 2, 3, 4, 5 and 6, refer to User's manual (Details).

LCD
display

Operation
button

Operation

SET -/RESET +/ PHASE DISP

◎
◎ ◎

◎ ◎
○

○

□
○

□

○

tion

Setting menu 1 Setting menu 2 Setti ng menu 3 Setting menu 4 Setting menu 5

Basic setting Communication setting Alarm setting Logging settingEnd of setting menu

*1

*2

For the case of special voltage (SP
(Not available for 1P3W

Primary voltage

(VT voltage)

Primary special

Secondary

special voltage

(2)

EMU4-HD1-MB

Voltage input terminals

Current input terminals

Name of Button

○
◎

◎
◎ ◎

○ ○

(□) (□)

○ ○

(□) (□)

○ ○
◎ ◎

Phase wire

system

Primary voltage
(with or without

VT)

Primary voltage

(with VT or direct

connection)

Sensor type

Primary
current

Current

demand time

limit

Power demand

time limit

)

voltage

○

)

Frame GND terminal

Power supply terminals

LCD
display

Operation
button

Contact/ pulse output terminals

Contact/ pulse input terminals

Communication terminals (MODBUS® RTU

)

)

Input/output setting

Contact/pulse

input

on or off

*5

Reset method
of contact input

Contact/pulse

output

on or off

*6

Unit of pulse

output

Display CO2 or

*7

CO2 conversion

setting

Display harmonic

current or not

Display harmonic

voltage or not

Display operating

time or not

Count method of

operating time

Event

)

)

)

*4 *4

not

*4

Change measurement items

○

Change phase

Change harmonic order (at harmonic display

Clear alarm (at alarm generation display with alarm keeping

Transition to confirmation m ode

Transition to setting mode

Clear contact latch

Transition to preset display
Transition to reset display of all data
Enter setting menu
Moving up or

down of menu number

(

Move at fast speed when pressing more than 1sec

Change of setting items (forward

Transition to setting menu number (at final setting item

Moving up or down of setting value
(

Move at fast speed when pressing more than 1sec

Change setting items (backward

○

Transition to setting menu number (at beginning setting item

Back to setting menu

Change setting items (forward

Transition to setting menu number (at final setting item

Change setting items (backward

○

*3

For the case of
special current (SP

Sensor type

Primary special

to setting menu number (at beginning setting item

Transition

Transition to setting menu
At "END" display, memorize changed setting and transition to operation

mode
At "CANCEL" display, throw away changed setting and transition to
operation mode

Moving up or down of setting value

Reset setting values to factory default (only effective at CANCEL display

Setting mode or confirmation mode

®

MODBUS

address

®

MODBUS

baud rate

®

MODBUS

parity

®

MODBUS

stop bit

)

voltage

(3)

Back view

IEC rail
fixture

)

Names of signals of terminal block (EMU4-BD1-MB

Terminal
symbol

P1、P2、P3

MA、MB
1k、1L、3k、3L

485+、485-

SLD Connect to ground (D type ground).
Ter Connect the “ 485- “ terminal(the unit at end of

Names of signals of terminal block (EMU4-HD1-MB

Terminal
symbol

P1/P1、P2/P0、
P3/P3、NC/P2

MA、MB
1k、1L、2k、2L、
3k、3L

485+、485-

SLD Connect to ground (D type ground).
Ter Connect the “ 485- “ terminal (the unit at end of

X1、COM
Y1、COM

Description

Connect the voltage inp ut wire for t he
measurement circuit.
Connect to ground (D type ground).
Connect the auxiliary power supply.

Connect the secondary output of the dedicated
current sensor connected to the measurement
circuit’s current wire.

Connect the communication wir e (MODBUS
RTU).

the link).

Description

Connect the voltage inp ut wire for t he
measurement circuit.

Connect to ground (D type ground).
Connect the auxiliary power supply.
Connect the secondary output of the dedic ated
current sensor connected to the measurement
circuit’s current wire.

Connect the communication wire (MODBUS
RTU).

the link).
Connect the contact/ pulse input wir e.

X

Connect the contact/ pulse output wir e.

Y

)

®

)

®

4.3 Functions of LCD

)

)

)

)

)

)

)

)

Upper and lower

limit alarm

on or off

Upper and lower

limit alarm item

Upper and lower
limit alarm value

Alarm delay time

Alarm reset

method

Symbol

No display

2

3
4
5

No. Indicator Description

1 Measured value Display measured value digitally.

2 Measured item Display measured item displayed on indicator No.1.

3 Communication Light when connecting communication unit.

4 Energy

Measurement

5 Setting Indicator lights on setting mode.

)

*8

Logging module

ID setting

Clear logging

data

*1: On confirmation mode, transition to operation mode.
*2: Transition only when selecting "SP" for "Primary current (VT)".

　　　(For 3P4W, only special voltage is available when using VT.

*3: Transition only when selecting "SP" for "Primary current (5A)".
*4: Setting available for EMU4-HD1-MB only.
*5: Transition only when selecting "CO.P." for "Contact/pulse input on or off" .
*6: Transition only when selecting "PLS" for "Contact/pulse output on or off".
*7: Transition only when selecting "on" for "Display CO2
*8: Transition only when connecting logging module.
*9: Not displayed on setting mode.

Transition from operation mode to setting mode.

Tr

ansition from operation mode to confirmat ion mode.

Enter each setting display or transition to next item.

Memorize changed setting and transition to operation

Behavior

Select menu number or "End".

Back to previous settting display.

Select setting value.

Transition to "End" display.

mode.

Select "CANCEL".

Cancel change of setting value.

Skip other items during setting.

Reset setting values to factory default.

Light when measuring electric energy (consumption).

Indicator lights on confirmation mode.

Setting menu 6

Test mode

*9

Test mode

)

or not".

Operation of control button

"SET" + "-"

same time for 2 sec

"SET"

"+" or "-"

Press several times

"SET"

"DISP"

"+" or "-"

Press several times

"SET"

"SET"

"+" or "-"

"SET"

"SET"

"SET"

Press both at the

Press for 2 sec

Press once

Press once

Press once

Press once

Press once

Press once

Press for 1 sec

Press once

1

6.1 Mounting on IEC rail

6.2 Mounting on the panel

Recommended
screws

cross recessed h ead screw with captive washer
and flat washer
M3×10 2pcs

Panel

Panel

Panel m ounting
attachment

Mount the m odule to mounting plate by mounting screws
(

M3×10), then mount the panel mounting attachment.

Tightening torque : 0.63N・m

*Please screw up the pan el mounting attachment wher e there are
high levels of vibration.
*The screws (mounting screws and screws for panel mounting
attachment) are supplied with panel mounting attachment.

・Dimensions of hole panel

The panel hole dimensions are as shown below.
And it can be attached to a pane

l of thickness

1.6 – 4.5mm.

・Mounting ・Mounting

・Dimensions of hole panel

The panel hole dimensions are as shown below.
And it can be attached to a panel of thick ness

1.6 – 4.5mm.

Attached to the panel with screws (2 pcs).
Tightening torque : 0.63N・m

Outline of the unit

Outline of the unit

Mounting screws

Mounting screws

Screws for panel
mounting
attachment

7.1 Wiring

Follow the wiring diagram for external connections of this unit.
When using this unit, current sensor (EMU-CT50/CT100/CT250/CT400/CT600, EMU2-CT5 or EMU2-CT5-4W) is necessary.

1P2W (for low voltage circuit

)

1

2

Power source side

Load side

K

L

RS485 (MODBUS

®

)

EMU-CT*** model
split current sensor
(50/100/250/400/600)

1P3W/3P3W (for low voltage circuit

)

11N

2

Power source side

Load side

K

L

RS485 (MODBUS®)

EMU-CT*** model
split current sensor
(50/100/250/400/600)

3
3

L

K

3P3W (for high voltage circuit

)

RS485 (MODBUS®)

1

2

Power source side

3

5A current sensor
EMU2-CT5

5A current sensor cable
EMU2-CB-Q5B

Current
transformer ***/ 5A

K

L

Load side

K

L

Contact/
pulse output
Contact/
Pulse input

3P4W (for high voltage circuit

)

1 2

Power source side

Load side

K

L

RS485 (MODBUS®)

Current
transformer ***/ 5A

3

L

K

N

L

K

5A current sensor
EMU2-CT5-4W

5A current sensor cable
EMU2-CB-Q5B-4W

Contact
/pulse output

Contact
/pulse input

・Make sure that before connecting the cable, the orientation of the current sensor is correct for attachment. K to L is the correct direction.

K: power source side, L: load side

・EMU-CT50/100/250/400/600 is used only for low voltage circuit.(Maximum voltage: 460V)It cannot be used for a high voltage circuit. EMU2-CT5 and EMU2-CT5-4W

should be used with the secondary side (5A) of transformer transfixed. If they are used for the circuit directly, they

should be used under 200V. (Maximum voltage: 260V

)

・Maximum voltage of the circuit connected to this unit directly is 260V for EMU4-BD1-MB, or 277 / 480V for EMU4-HD1-MB. For the circuit over this voltage, use the

transformer. Using the transformer, primary voltage is configurable up to 6600V.

・
・For MODBUS

®

communication wiring, recommended to have the extra length wires about 200mm (When extended to B / NET transmission from MODBUS® communication,

use of MODBUS

®

communication wiring is possible).

When screwing the terminals at both ends of the terminal block, be careful not to touch the projection of the terminal block cover.

●EM

U4-BD1-MB ●EMU4-HD1-MB

Unit [mm]

･The charge-free warranty is effective until the earlier of 1 year after the date of your purchase or 18 months after manufacturing. Repair shall be charged for the case failures

occur due to your intent or fault even during the charge-free warranty period.

･Our company shall not be liable to compensate for any loss arising from events not attributable to our company, opportunity loss and lost earning of the c

ustomer due to failure

of the product, and loss, secondary loss, accident compensation, damage to other products besides our products and other operations caused by a special reason regardless

of our company’s predictability.

If an abnormal sound, bad-smelling smoke, fever break out from this unit, switch it off promptly and don’t use it

Please contact us at the following locations.

1-8 Midori-cho, Fukuyama-shi, Hiroshima, 720-8647, Japan
Phone: [phone]

・For protection against noise, transmission lines and input/output lines shall not be placed close

to or bound together with the power lines and high-voltage lines. Keep distance as below
between them. (except for the terminal block

)
Condition distance
High-voltage line 600V or less 300mm or longer
Other high-voltage line 600mm or longer

・For the actual usage, connect the FG terminal to ground. (D-type ground: Type 3) Connect it

directly to the ground terminal.

・Do not connect to FG terminal during the insulation resistance test and pressure test.

Item Specifications

Model EMU4-BD1-MB EMU4-HD1-MB

Phase-wire system

single-phase 2-wire / single-phase 3-wire /
three-phase 3-wire

single-phase 2-wire / single-phase 3-wire /
three-phase 3-wire / three-phase 4-wire

Measurement item

Electric energy (consumption, regeneration), Current,
Current demand, Voltage, Electric power, Electric power
demand, Reactive power, Power factor, Frequency,
Reactive energy, Operating time

Electric energy (consumption, regeneration), Current, Current
demand, Voltage, Electric power, Electric power demand, Reactive
power, Apparent power, Power factor, Frequency, Harmonic
current, Harmonic voltage, Reactive ener

gy, Periodic electric

energy, Pulse count value, Operating time, Equivalent CO

2

Rating

Voltage
circuit

single-phase 2-wire,
three-phase 3-wire

110V, 220V AC 110V, 220V, 440V AC

single-phase 3-wire

AC110V(b/w 1- and 2-side, 2- and 3-side),
AC220V（b/w 1- and 3-side）

AC110V(b/w 1- and 2-side, 2- and 3-side),
AC220V（b/w 1- and 3-side）

three-phase 4-wire Non-compliant Min: AC63.5V/110V, Max: AC277V/480V

Current circuit

50A, 100A, 250A, 400A, 600A AC
(

The dedicated split type current sensor is used. Each value refers to the current at the primary side of the current sensor

)
5A AC
(

The dedicated split type current sensor is used. 5A current sensor is used together with the current transformer (CT), and the

primary-side current is configurable up to 6000A.

)

Frequency 50Hz-60Hz
Auxiliary power supply rating 100-240V AC (+10%, -15%), 50Hz-60Hz
Measurable circuit count 1 circuit

External input

Input signal type

None

No voltage a-contact 1 input
Rated input
voltage/current

5V DC 7mA

External output

Output signal type

None

No voltage a-contact 1 output
Rated open/close
voltage/current

35V DC 75mA or 24V AC 75mA （Power factor = 1）

Operating temperature -5 - +55℃(Under the conditions indicated in section 3.1

)

Operating humidity 30 - 85％RH(No condensation

)

Storage temperature -10 - +60℃
Operating altitude 1000ｍ or below

Standard

EMC: EN61326-1: 2006
LVD: EN-61010-1: 2010

Product life expectancy 10 years (Under the conditions indicated in section 3.1

)

7.2 How to connect wires

・Use appropriate crimp-type terminal.
・Use electric wires as below, and tighten the terminal screws by the torque as below.

【EMU4-BD1-MB】

Applicable wire Tightening torque Recommended

crimp-type terminal
Power supply terminals,
voltage input terminals

AWG24 - 16
(single wire / stranded wire)

0.8 N・m

For M3 screw of

external diameter

below 5.6mm
Current input terminals,
input/ output terminals

AWG22 - 14
(single wire / stranded wire）

0.5 - 0.6N・m

For M3 screw of

external diameter

below 5.6mm

【EMU4-HD1-MB】

Applicable wire Tightening torque Recommended

crimp-type terminal
Power supply terminals,
voltage input terminals

AWG26 - 14
(single wire / stranded wire)

0.8 - 1.0 N・m

For M3.5 screw of

external diameter

below 5.6mm
Current input terminals,
input/ output terminals

AWG22 - 14
(single wire / stranded wire）

0.5 - 0.6N・m

For M3 screw of

external diameter

below 5.6mm

(2)

Pull the unit

6. Attachingand removing the unit

CL

2×

φ

4

22.5 53.5

67
77

26.5 45.5

67

53.5

2×

φ

4

2×

φ

4

22 54.5

106

28

45.5

26.5

77

(75)

7. How to wire

ｌ

P1 P2 P3 MA MB

1k 3k

485+

SLD

Ter

3L1L

485-

ｌ

ｌ

P1 P2 P3 MA MB

1k 3k

485+

SLD

Ter

3L1L

485-

1k1l3k

3l

P1/P1

P2/P0

P3/P3

NC/P2

MA MB

1k 2k

1L 2L3k3L

X1 Y1

485+

485-

SLD

Ter

COMx COM

Y

P1/P1 P2/P0 P3/P3

NC/P2

MA MB

1k 2k

1L 2L3k3L

X1 Y1

485+

485-

SLD

Ter

COMx COM

Y

1k1l3k3l2k

2l

Caution

8. Dimensions

9. Specifications

10. Warranty

11. Customer Service

Caution

COMMUNICATION RS485(MODBUS RTU)

35V DC 75mA

2400-38400bps
AUX.SUPPLY 100-240V～ 50/60Hz 10VA

CONTACT OUTPUT No Voltage a-contact

5V DC 7mA

CONTACT INPUT No Voltage contact

MEASUREMENT ITEM A,V,W,var,VA,Hz,PF,Wh,varh

ENERGY MEASURING UNIT

ELECTRIC

MITSUBISHI

MODEL

EMU4-HD1-MB

P1,P2,P3,RATED 110,220,440V AC(～1P2W,1P3W,3P3W)

1k,1l,2k,2l,3k,3l RATED 66,66mA AC～ 50/60Hz

LY303N900H11

MADE IN JAPAN

MITSUBISHI ELECTRIC CORPORATION

REFER TO
MANUAL

P1,P2,P3,P0 RATED 277/480V AC(～3P4W)

15 60

27.5 43.5

27 35.4

MEASUREMENT ITEM A,V,W,var,Hz,PF,Wh,varh

ENERGY MEASURING UNIT

ELECTRIC

MITSUBISHI

MODEL

EMU4-BD1-MB

P1,P2,P3,RATED 110/220V AC(～1P2W,1P3W,3P3W)
1k,1l,3k,3l RATED 66,66mA AC～ 50/60Hz

LY303N900H01

MADE IN JAPAN

MITSUBISHI ELECTRIC CORPORATION

2400-38400bps

COMMUNICATION RS485(MODBUS RTU)

AUX.SUPPLY 100-240V～ 50/60Hz 10VA

REFER TO
MANUAL

6015

27.5 43.5

27 35.4

CL

90

75

67

4

22.5

53.5
90

22.5

4 75

CL

53.5

67