XBS EFMN-3DK Manual Instruction Download Page 2

A

C

D

B

E

Performance criteria:

Operating humidity                    

 75%

Storage humidity                      

 95%

Operating temperature                 

-10°C - +50°C

Storage temperature                   

-30°C - +70°C

International standard 

 

IEC 62053-21

Accuracy class

 

 

1

 

Protection against penetration        
of dust and water                      

 

IP51

 (with protection cover)

Specifications:

Nominal voltage(Un) 

             

230/400V AC (3~)

Operational voltage 

                  161/279 – 300/520V AC (3~)

Insulation capabilities: 
- AC voltage withstand                  

4KV for 1 minute 

- Impulse voltage withstand            

 

6KV – 1.2µS waveform

Starting current (Ist)                   

 

0.04A

Transitional current(Itr)                

 

1.0A

Minimum current                       

 

0.5A

Reference current (Iref)   

10A

Maximum current (Imax)   

100A

The current  measuring range 

0.5-10(100)A  

Peak current withstand           

3000A for 0.01s 

Operational frequency range 

50

 - 60

Hz   

Internal power consumption 

2W / 10VA per phase

Test output flash rate (PULSE LED) 

8

00imp/kWh

pulse output rate

 

 

8

00imp/kWh

Basic errors:
With 

three

 

phase 

loads

0.05Ib 

  

Cos

φ

 = 1          

±1.5%

0.1Ib 

 

Cos

φ

 = 0.5L 

±1.5%

 

 

Cos

φ

 = 0.8C 

±1.5%

0.1Ib - Imax         

Cos

φ

 = 1        

±1.0%

0.2Ib - Imax         

Cos

φ

 = 0.5L     

±1.0%

 

 

Cos

φ

 = 0.8C 

±1.0%

With single phase load

0.1Ib - Imax         

Cos

φ

 = 1   

±2.0%

0.2Ib - Imax         

Cos

φ

 = 0.5L     

±2.0%

Description

   

 

Front panel

 

Cover

 

Base

D                     

 

Protection Cover

E                     

 

Security hasp

Dimensions

Height 

                  

   

 

140

 

mm

Width 

                  

   

 

70

 

mm

Depth

  

 

                  

   

 

64 mm

Size of connection clamp(L

×

H)          

 

8

×

8mm          

Weight 

 

 

 

0.

 

4 Kg (net)

CAUTION

 

Turn off and lock out all power supplying the energy meter and

 

the equipment to which it is installed before working on it.

 

Always use a properly rated voltage sensing device to confirm that

 

power is off.

WARNING

 

Installation should be performed by qualified personnel familiar

 

with applicable codes and regulations.

 

Use isolated tools to install the meter.

 

We recommend that the connecting wire which is used to connect

 

the meter to outside circuit should be sized according to local

 

codes and regulations for the ampacity of the circuit breaker or

 

over current device used in the circuit.

 

An external switch or a circuit-breaker should be installed on the

 

inlet wire, which will be used as a disconnection device for the

 

meter. And there it is recommended that the switch or circuit

 

breaker be near the meter so that it is convenient for the operator.

 

The switch or circuit-breaker should comply with the

 

specifications of the building electrical design and all local

 

regulations.

 

This meter can be installed indoor directly, or in a meter box

 

which is waterproof outdoor, subject to local codes and

 

regulations.

 

To prevent tampering, secure the meter with a padlock or a similar 

 

device.

 

The meter has to be installed in a good ventilated and dry place.

 

The meter has to be installed in a protection box when placed in

 

dangerous or dusty environments.

 

The meter can be installed and used after being tested and

 

sealed with a letter press printing.

 

The meter can be installed on a 35mm DIN rail.

 

The meter should be installed in an available height so that it is

 

easy to read.

 

When the meter is installed in an area with frequent surges due to

 

e.q. thunderstorms, welding machines, inverters etc, protect the

 

meter with Surge Protection Devices

 

After finishing installation, the meter must be sealed to prevent

 

tampering.

 

Connection of the wires should be done in accordance with the

 

underneath connection diagram.

 

 

 

 

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