Datasheet
ESG 6.15
3-phase voltage monitoring relay (Multifunc-
tion)
EMR DU21C1, EMR DU21D1, EMR DU21B1
Technical data
Nominal consumption 3(N) ~132/230 V, 4,5 VA (1 W) (EMR DU21C1)
3(N) ~230/400 V, 4,5 VA (1 W) (EMR DU21D1)
3(N) ~ 66/115 V, 4,5 VA (1 W) (EMR DU21B1)
Nominal frequency 48 ... 400 Hz (24 ... 240 Vac)
16 ... 48 Hz (48 ... 240 Vac)
Wave form for ac sine
Ripple at dc 10%
Drop-out voltage >15% of the supply voltage
Base accuracy ±5% (of maximum scale value)
Adjustment accuracy ≤5% (of maximum scale value)
Repetition accuracy ≤2%
Temperature influence ≤0.1% / °C
Recovery time 500 ms
Measuring circuit: Fusing max. 20 A (according to UL 508)
Measured variable ac sine (48 ... 63 Hz)
Input:
3(N) ~132/230 V Terminals (N)-L1-L2-L3 (EMR DU21C1)
3(N) ~230/400 V Terminals (N)-L1-L2-L3 (EMR DU21D1)
3(N) ~ 66/115 V Terminals (N)-L1-L2-L3 (EMR DU21B1)
Overload capacity:
3(N) ~132/230 V 3(N) ~199/345 V (EMR DU21C1)
3(N) ~230/400 V 3(N) ~346/600 V (EMR DU21D1)
3(N) ~ 66/115 V 3(N) ~100/173 V (EMR DU21B1)
Input resistance:
3(N) ~132/230 V 470 kΩ (EMR DU21C1)
3(N) ~230/400 V 1 MΩ (EMR DU21D1)
3(N) ~ 66/115 V 220 kΩ (EMR DU21B1)
Switching threshold:
Max: -20% ... +30% von U
N
Min: -30% ... +20% von U
N
Asymmetry: 5% ... 25%
Type key
Construction
D Industrial design 22.5 mm
S pluggable 11 poles
Function
U Voltage
I Current
P CosPhi
T Temperature
S Star-Delta
F Frequency
Measuring circuit
A No measuring circuit I 12 Vdc
B 3(N)~115/66 Vac J 24 Vdc
C 3(N)~230/132 Vac K 36 Vdc
D 3(N)~400/230 Vac L 48 Vdc
E 1 ≅ 30/60/300 Vac/dc M 1~110 Vac
F 1 ≅ 100mA/1A/10A ac/dc N 1~230 Vac
G PTC O 1 A
H CosPhi P 5 A
Q 50/60 Hz 110... 400 Vac
Output
1 1 changer
2 2 changers
3 1 NC contact / 1 NO contact
Special functions
1 = Additional asymmetry monitoring
Connecting voltage
1 Measuring circuit
2 24...240 Vac/dc
3 230 Vac
DU21 C1EMR