DPX
3
250
Thermal magnetic and trip-free switches
DPX
3
-I 250
Reference(s) 420 205/ 207/ 208/209/ 215/ 217/ 218/ 219/ 235/ 237/
238/ 239/ 245/ 247/ 248/ 249/ 265/ 267/ 268/ 269/ 275/ 277/ 278/ 279/
605/ 607/ 608/ 609/ 615/ 617/ 618/ 619/ 299/ 300
3/8
Technical sheet :
F01364EN/01
Update :
17/10/2011
Create : 25/05
/2011
4. ELECTRICAL AND MECHANICAL CHARACTERISTICS
4.1 Breaker technical characteristics
Circuit breaker
DPX
3
250
Rated current Iu (A)
100-250
Rated insulation voltage Ui (V)
800
Rated operational voltage Ue (V)
690 V (ac)
500 V (dc)
Rated impulse withstand voltage U
imp
(kV)
8
Ambient temperature (°C)
40
Endurance electrical / mechanical
8000/20000
Utilization category
A
Releases type
thermal-mag
Nominal frequency (Hz)
50-60
Thermal adjustement
0,8 ÷ 1 I
n
Magnetic threshold
5 ÷ 10 x I
n
4.2 Switches technical characteristics
Switches
DPX
3
-I 250
Rated current Iu (A)
250
Rated insulation voltage Ui (V)
800
Rated operational voltage Ue (V)
690 V (ac)
500 V (dc)
Rated impulse withstand voltage U
imp
(kV)
8
Ambient temperature (°C)
40
Endurance electrical / mechanical
8000/20000
Rated short-time withstand current I
cw
(1 s) (kA)
1,7
Rated short-circuit making capacity I
cm
(kA)
2,4
AC 22, AC 23, DC 22, DC 23 (A)
250
4.3 Breaking capacity (KA)
Breaking capacity Icu and Ics in AC (kA)
Ue
25 kA 36 kA 50 kA 70 kA
Icu (kA)
220/240V 40
60
80
100
380/415V 25
36
50
70
440V
20
30
40
60
480/500V 10
25
30
40
690V
8
16
18
20
Ics (%Icu) -
100
100
100
100
4.4 Derating temperature Ta (°C)
Influence of ambient temperature Ta(°C)
In (A) -25 -20 -10 -5
0 10 20 30
40
50 60 70
100 135 132 128 126 123 120 112 102
100
94 90 84
160 216 211 205 201 197 192 179 163
160
151 143 134
200 270 264 256 251 246 240 224 203
200
189 179 168
250 338 330 320 314 308 300 280 254
250
236 224 210
4.5 Power loss (W)
4.5.1 Breaker power loss (W)
Power loss DPX
3
250
(W)
In (A) ---->
100
1
1
6
6
0
0
200 250
Cage terminals
8,1 15,1 22,8 29,4
Lugs
8,1 15,1 22,8 29,4
External terminals
8,1 15,1 22,8 29,4
Spreaders
8,1 15,1 22,8 29,4
Rear terminals
8,1 15,1 22,8 29,4
Plugin version
10 20,5 30,8 41,9
4.5.2 Switches power loss (W)
Power loss DPX
3
-I
250
(W)
In (A) ---->
250
Cage terminals
18,8
Lugs
18,8
External terminals
18,8
Spreaders
18,8
Rear terminals
18,8
Plugin version
31,3
4.6 Short-circuit breaking capacity in D.C. current
Short-circuit breaking capacity in D.C. current
Breaking capacity Icu (kA)
2 p. in ser. 2 p. in ser.
3 p. in ser.
3 p. in ser.
110-125V
250V
400V
500V
250 25 kA
50
25
30
25
250 36 kA
72
36
45
36
250 50 kA
80
40
50
40
250 70 kA
90
45
55
45
+
-
+
-
2 poles in series 3 poles in series
