Technical description
12
2.3
Technical data
The SmartFuse 250 is defined by the following parameters:
Parameter
Value
Triggering threshold
10 A … 250 A (adjustable)
Reclose attempts
0 – unlimited
Waiting time until reclose
1 – 120 seconds
Surge energy control
1
1 – 50 half-waves
Operating temperature
-20°C to 50°C
Operating humidity
50% at 40 °C
90% at 30°C
Storage temperature
-25°C to 70°C
Memory for mains failure
Non-volatile event memory
Power supply
Power and supply module
100 … 240 V, 50 Hz / 60 Hz (direct tap at
low-voltage distributor)
Power consumption
20 VA + 1 W/A load current
The power module is defined by the following parameters:
Parameter
Value
Load current
max. 250 A continuous current
Short-circuit/surge current
max. 9000 A
Internal fuses
F1: 1 x 800 A and
F2: 1 x 1.25 A
Cut-out capacity
200 kA
Compatibility
Fuse holders NH 2 or NH 3
Display elements
LED for indicating the switching status
Weight
3 kg
Dimensions
(W x D x H)
130 x 155 x 82 mm
Ingress protection rating
(in accordance
with IEC 60529 (DIN VDE 0470-1))
IP 20
1
with "fault location" option
