
DPX3250 + earth leakage
DPX3-I 250 + earth leakage
Reference(s)
420 225/ 227/ 228/229/ 255/ 257/ 258/ 259/ 285/ 287/
288/ 289/ 625/ 627/ 628/ 629/ 298
3/10
Technical sheet : F01365EN/01 Update : 17/10/2011 Create : 07/06/2011
4. ELECTRICAL AND MECHANICAL CHARACTERISTICS
4.1 Breaker technical characteristics
DPX3250 + earth leakage
Rated current Iu (A) 100-250
Rated insulation voltage Ui (V) 500
Rated operational voltage Ue (V) 500 V (ac)
500 V (dc)
Rated impulse withstand voltage Uimp
(kV)
6
Ambient temperature (°C) 40
Endurance electrical / mechanical 8000/20000
Utilization category A
Releases type thermal-mag + earth leakage
Nominal frequency (Hz) 50-60
Thermal adjustement 0,8 ÷ 1 In
Magnetic threshold 5 ÷ 10 x In
4.2 Switches technical characteristics
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 Uimp (kV) 8
Ambient temperature (°C) 40
Endurance electrical / mechanical 8000/20000
Rated short-time withstand current Icw (1 s) (kA) 1,7
Rated short-circuit making capacity Icm (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)
Icu
(kA)
220/240V 40 60 80 100
380/415V 25 36 50 70
440V 20 30 40 60
480/500V 8 16 18 20
Ics
(%Icu) - 100 100 100 100
4.4 Derating temperature Ta (°C)
Influence of ambient temperature Ta(°C)
135 132 128 126 123 120 112 102 100 94 90 84
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
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 DPX3 250 + earth leakage (W)
In (A) ----> 100 1
16
60
0
200 250
Cage terminals 9,2 17,4 25,6 37,5
Lugs 9,2 17,4 25,6 37,5
External terminals 9,2 17,4 25,6 37,5
Spreaders 9,2 17,4 25,6 37,5
Rear terminals 9,2 17,4 25,6 37,5
Plugin version 11,2 22,5 33,6 50,0
4.5.2 Switches power loss (W)
Power loss DPX3-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)
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
* Earth leakage protection not available
2 poles in series 3 poles in series