Available versions
Part number
Connection
Output
MID approval
cULus approval
EM530DINAV23XO1X
Via CT (5A secondary output)
Digital output
x
EM530DINAV23XS1X
Via CT (5A secondary output)
RS485 Modbus
RTU
x
EM530DINAV23XM1X
Via CT (5A secondary output)
M-Bus
x
EM530DINAV23XO1PFA
EM530DINAV23XO1PFB
EM530DINAV23XO1PFC
Via CT (5A secondary output)
Digital output
x
EM530DINAV23XS1PFA
EM530DINAV23XS1PFB
EM530DINAV23XS1PFC
Via CT (5A secondary output)
RS485 Modbus
RTU
x
EM530DINAV23XM1PFA
EM530DINAV23XM1PFB
EM530DINAV23XM1PFC
Via CT (5A secondary output)
M-Bus
x
Part number
Connection
Output
MID approval
cULus approval
EM540DINAV23XO1X
Direct connection up to 65 A
Digital output
x
EM540DINAV23XS1X
Direct connection up to 65 A
RS485 Modbus RTU
x
EM540DINAV23XM1X
Direct connection up to 65 A
M-Bus
x
EM540DINAV23XO1PFA
EM540DINAV23XO1PFB
EM540DINAV23XO1PFC
Direct connection up to 65 A
Digital output
x
EM540DINAV23XS1PFA
EM540DINAV23XS1PFB
EM540DINAV23XS1PFC
Direct connection up to 65 A
RS485 Modbus RTU
x
EM540DINAV23XM1PFA
EM540DINAV23XM1PFB
EM540DINAV23XM1PFC
Direct connection up to 65 A
M-Bus
x
PFA models
Easy connection function: irrespective of the current direction, the power always has a plus sign and contributes to increase the
positive energy meter. The negative energy meter is not available.
PFB models
For each measuring time interval, the individual phase energies with a plus sign are summed to increase the positive energy meter
(kWh+), while the others increase the negative one (kWh-).
Example:
P L1= +2 kW, P L2= +2 kW, P L3= -3 kW
Integration time = 1 hour
kWh+ = (2+2) x1h = 4 kWh
kWh- = 3 x 1h= 3kWh
PFC models
For every measuring interval time, the energies of the single phases are summed; according to the sign of the result, the positive
(kWh+) or negative totalizer (kWh-) is increased.
Example:
P L1= +2 kW, P L2= +2 kW, P L3= -3 kW
Integration time = 1 hour
kWh+=(+2+2-3)x1h=(+1)x1h=1 kWh
kWh+=0 kWh
6
EM530/EM540 - User manual |23/11/2022 | CARLO GAVAZZI Controls SpA
