Technical Data (The Data On The Unit Rating Plate Apply); Area Of Application - STIEBEL ELTRON DEL 18 SL i 25A Operating And Installation Instructions

5.2 Technical Data
(The data on the unit rating plate apply)
Electrical details
Rated voltage
Rated output
Rated current
Fuse
Phases
Frequency
≥ (at ϑcold ≤25 °C)
Specific resistance ρ
15
Specific conductivity σ ≤ (at ϑcold ≤25 °C)
15
≥ (at ϑcold ≤55 °C)
Specific resistance ρ
15
Specific conductivity σ ≤ (at ϑcold ≤55 °C)
15
Max. mains impedance at 380 V / 50Hz
Max. mains impedance at 400V / 50Hz
Max. mains impedance at 415V / 50Hz
Connections
Water connection
Application limits
Max. permissible pressure
Max. inlet temperature for reheating
Values
Max. permissible inlet temperature
ON
Flow rate for pressure drop
Pressure drop at flow rate
Flow rate limit at
DHW delivery
Δϑ at DHW delivery
Hydraulic data
Rated capacity
Versions
Connected load options
Temperature adjustment
Protection class
Insulation block
Heating system heat generator
Cap and back panel
IP-Rating
Colour
Dimensions
Height
Width
Depth
Weights
Weight
5.3

Area of application

Specific electrical resistance and specific electrical conductivity.
Details as
Resistance
Conductivity
Conductivity
DEL 18 SLi 25A
V 380 400
kW 16,2 18
A 24,7 26
A 25 25
Hz 50/60 50/60
Ω cm 900 900
μS/cm 1111 1111
Ω cm 900 900
μS/cm 1111 1111
Ω
Ω
Ω
MPa
°C
°C
l/min
l/min
MPa 0,075 (0,05 without DMB)
l/min
l/min
K
l
°C
Bare wire
mm
mm
mm
kg
Ranges of use for different references temperatures
Normes details
at 15 °C
Ωcm ≥ 900
mS/m ≤ 111
μS/cm ≤ 1110
DEL 18/21/24 SLi
227498
415 380 400
19,4 16,2/19/21,7 18/21/24 19,4/22,6/25,8
27 27,6/31,4/33,3 29/33/35 30,1/34,3/36,3
32 32/32/35 32/32/35
3/PE
50/- 50/60 50/60
900 900 900
1111 1111 1111
900 900 900
1111 1111 1111
0,300
0,285
0,274
G 1/2 A
1
55
65
> 2,5
5,2
0,125 (0,085 without DMB)
12 (7,5)
9,2 9,2/10,7/12,3
28
0,4
-
30-60
1
Plastic
Plastic
IP25
white
478
225
105
4,3
bei 20 °C
≥ 800
≤ 125
≤ 1250
DEL 27 SLi
227499 227500
415 380 400
24,4 27 29,1
37,1 39 40,5
35/35/40 40 40
3/PE 3/PE
50/- 50/- 50/- 50/-
900 900 900
1111 1111 1111 1111
900 900 900
1111 1111 1111 1111
0,331 0,200
0,314 0,190
0,302 0,183
G 1/2 A G 1/2 A
1
55
65
> 2,5 > 2,5
6,9
0,155 (0,105 without DMB)
12 (7,5) 12 (7,5)
13,8
28
0,4
X
30-60 30-60
1
Plastic Plastic
Bare wire Bare wire
Plastic Plastic
IP25 IP25
white white
478
225
105
4,3
bei 25 °C
≥ 735
≤ 136
≤ 1360
415
40
900
900
1
55
65
7,7
28
0,4
-
1
478
225
105
4,3
23