Technical data

2CMC480022C0003| Electricity meters 39
DELTAmax
Technical data
Three phase meter, direct connection up to 80A Types DFx and DHx Types DEx and DGx
Voltage (V) Nominal voltage AC 3 x 57-288/100-500 (4-wire)
3 x 100-500 (3-wire)
1 x 57-288 (single phase)
Voltage range -20% to +15% of nominal voltage
Current (A) I
min
0.25 0.01
I
tr
0.50 0.05
I
ref
(I
b
) 5 -
I
n
- 1.0
I
max
80 6
I
st
20 mA 2 mA
General data Frequency (Hz) 50/60 50/60
Frequency range ± 5% ± 5%
Accuracy Class B (Cl. 1) B (Cl. 1)
Power consumption current circuits at 230 VAC and I
ref
0.007 VA, 0.007W per phase 0.001 VA, 0.001W per phase
Power consumption voltage curcuits 0.5 VA, 0.5 W total 0.5 VA, 0.5 W total
Standards MID approval according to EN 50470-1, EN 50470-3
International approlval according to IEC 62052-11, IEC 62053-21, IEC 62053-23
Memory back-up EEprom
Clock back-up Super Cap. typically 168 hours back-up at +20°C, min 72 hours over operating temperature range
Clock accuracy IEC 62052-11, IEC 62054-21
Temperature range (°C) Operating -40 to +55
Storage -40 to +70
Transformer ratio Voltage transformer ratio N/A 1 - 9 999
Current transformer ratio N/A 1 - 9 999
Max transformer ratio N/A CT x VT max 999 999
Enclosure material Upper Polycarbonate
Lower Glassfibre reinforced polycarbonate
Environment Mechanical environment M1
Electromagnetical environment E2
Resistance to heat and fire According to IEC 60695-2-10, IEC 60695-2-11:
Terminal 960°C, Cover 650°C
Humidity 75% yearly average, 95% on 30 days/year
Connection area main terminals Current terminals 1 x mm
2
1.0 - 25 0.5 - 10
Voltage terminals 1 x mm
2
N/A 0.5 - 10
Protection against penetration of dust According to IEC 60529 IP 20 on terminal block without protective enclosure *)
and water
Pulse output Connection area, main terminals, - 1 x mm
2
0 - 2.5 (For comb. meters 0 - 0.5)
External pulse voltage
- Voltage (V) DC N/A
- Voltage (V) AC/DC 0 - 247 (solid state relay polarity independent)
Max. current (mA) 0 - 100
Pulse length (ms) 100 (± 2.5)
Pulse frequency (imp/kWh) Programmable (Default 100) Programmable (Default 10)
Standard IEC 62053-31(SO)
LED Pulse frequency (imp/kWh) 1000 5000(secondary registering)
Pulse length (ms) 40 40
Display LCD with 7 digits, height 7 mm
Electromagnetic compability (EMC) Impuls voltage test (kV) 6, 1.2 / 50µs (IEC 60060-1, HD 588.1 S1)
Fast transient burst test (kV) 4 (IEC 61000-4-4)
Radio frequency immunity 80 MHz - 2 GHz at 10 V/m (IEC 61000-4-3)
Electrostatic discharge (ESD) (kV) 15 (IEC 61000-4-2)
Tariff inputs (optional) Max. voltage (V) AC 276
Max. wire size (mm
2
) 2.5
Input voltage range (V) AC 57 - 276 (”voltage on”)
0 - 20 (”voltage off”)
Terminal wire area (mm
2
) M-Bus 0 - 2.5
LonWorks FTT-10A N/A
Dimensions Width (mm) 122.5
Height (mm) 97
Depth (mm) 64.8
DIN modules 7
*) To comply with the protection requirements the meter must be mounted
in a class IP 51 enclosure or better, acc to IEC 60529.