Features :
EM306 :
!
Single pulse output
!
SMPS supply (85 to 276V)
!
3Ø Active Energy meter
Energy Meter
EM306 / EM306-C-D
1
www.selec.com
96 x 96mm
PRELIMINAR
Y
DAT
ASHEET
For EM306 :
Transmission distance
500 meter maximum
Pulse output
Voltage range : External 24V DC max
Current capacity : 100mA max
Pulse width : 100ms ±5ms
Baud rate
9600
Transmission speed
300, 600, 1200, 2400, 4800, 9600, 19200 (in bps)
Communication interface RS485 and MODBUS RTU
Response time
100ms (max and independent of baud rate)
For EM306-C-D :
Stop Bits
1 or 2
Output specification
Digits
6
LED indications
Integration of energy (1000 Impulse / kWh)
Display
1 row, 7 segments LED Display
Indications
EXP - CT reverse indication
- Communication
DG - Digital input
K
- Kilo
M - Mega
Display specifications
Active energy
Class1
Current nominal
5A
Measurement accuracy
VA Burden
5A per phase
Data update rate
1 sec for all the parameters
Input-current
CT ratings primary
1 / 5A to 10kA (Programmable for any value)
Electrical connection
3Ø-3 wire, 3Ø-4 wire, 2Ø-3 wire, 1Ø-2 wire
Input-voltage
PT primary
100V to 500V AC (L - L) (Programmable for any value)
Frequency range
45 to 65Hz
Input specifications
Voltage nominal
11 to 300V AC (L – N), 19 to 519V AC (L – L)
Supply voltage
85 to 276V AC, 50/60 Hz
Auxiliary supply specifications
Pollution degree
Pollution degree II
Humidity (non - condensing)
Up to 85% RH
Altitude
Up to 2000 meters
Environmental specifications
Temperature
Operating temperature : -10° to 55°C
Storage temperature : -20° to 75°C
Wire gauge at terminals
20 to 14AWG;75°C
Type of keys
Touch
No. of keys
4
Weight
210gms
Mechanical specifications
Mounting
Panel
Torque at terminals
0.68N-m to 0.79 N-m
PULSE
OUTPUT
Dimensions (All are in mm)
Terminal connection
EM306
Display specifications
Display
1 row, 7 segments LED Display
Digits
6
For Power : Auto resolution,
For Power factor : 0.001 (for EM306-C-D)
Digit height
0.56"
Resolution
For energy : 0.01k, 0.1k, 1k, 0.01M, 0.1M, 1M,10M
(depending upon CT ratio x PT ratio)
VA burden
0.5VA per phase
Impedance
≥0.8MOhm
Frequency
±0.1% For L - N Voltage >20V,
For L - L Voltage >35V*
Frequency range
45 - 65Hz
Power
1%*
Reactive energy
Class 2*
Input-current
Current nominal
5A
VA burden
0.5VA per phase
CT ratings primary
1 / 5A to 10kA (Programmable for any value)
Active energy
Class 1
Measurement accuracy
Frequency range
45 - 65Hz
Power factor
±0.01 Digit*
Withstand continuous
120A for 1sec
Type of measurement
TRUE RMS
Electrical connections
3Ø - 3 wire, 3Ø - 4 wire, 2Ø - 3 wire, 1Ø - 2 wire
Sampling rate
100 Samples / Cycle
Data update rate
1 sec for all the parameters*
Input-voltage
PT primary
100V to 500V AC (L - L)
(Programmable for any value)
Voltage nominal
11 to 300V AC (L – N), 19 to 519V AC (L – L)
Input specifications
Weight
210gms
IP degree of protection
IP54
Material
MAKROLON 6557 SMOKE BLACK
Mechanical specifications
Wire gauge at terminals
20 to 14AWG;75°C
Torque at terminals
0.68N-m to 0.79 N-m
Mounting position
Panel mount
Auxiliary supply specifications
Supply voltage
85 to 276V AC, 50/60 Hz
Humidity
85% (Non-Condensing)
Environmental specifications
Operating temperature
-10°C to +55°C
Altitude
Up to 2000 meters
Measurement category
CAT III
Storage temperature
-20°C to 75°C
Pollution degree
2
Dimensions (All are in mm)
99
99
91.5
91.5
90.5
5
50
Side view
Front bezel
Panel cutout
NOTE -
=
Only for EM306-C-D
*
Pulse output
Voltage range : External 24V DC max
Current capacity : 100mA max
Pulse width : 100ms ±5ms
For EM306 :
Output specification
Transmission speed
300, 600, 1200, 2400, 4800, 9600, 19200
Transmission distance
500 meter maximum
Response time
100ms (max and independent of baud rate)
Stop bits
1 or 2
Isolation
Yes
Transmission mode
Half duplex
For EM306-C-D :
Output specification
Device ID & Parity
1 to 255 & None, Odd, Even
Protocol & Interface
RS485 and MODBUS RTU
Baud rate
9600
EM306-C-D :
!
Dual Input Meter (Mains / D.G.)
!
RS485 Communication MODBUS RTU Protocol
!
3Ø Energy (kWh, kVArh, kVAh)
!
3Ø Power (kW, kVAr, kVA), PF
