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1708073275102

Schneider 32425 trip unit STR53UE FTI for Compact NS 400/630 circuit breakers

Discontinued
FX: 00356/3-5T

trip unit STR53UE FTI for Compact NS 400/630 circuit breakers, electronic, 525 VAC max, 4 poles 4d

Specifications

Main
Range ComPact
Range of produc NR400...630
Product or component type Trip unit
Trip unit name STR53UE FTI
Trip unit technology Electronic
Range compatibility ComPact NR400
ComPact NR630
Device application Distribution
Number of poles 3P
4P
Protected poles description 3t + N/2
4t
3t
Neutral position Left
Protection type For short time short-circuit protection
for instantaneous short-circuit protection
for overload protection (long time)
[Ue] rated operational voltage <= 525 V AC 50/60 Hz
Network type AC
Network frequency 50/60 Hz
Complementary
Long-time pick-up adjustment type Ir (thermal protection) Adjustable 48 settings
Long-time protection delay adjustment type tr Adjustable
[tr] long-time protection delay adjustment range 12…16 s at 6 x Ir
138…200 s at 1.5 x Ir
277…400 s at 1.5 x Ir
3…4 s at 6 x Ir
34…50 s at 1.5 x Ir
6…8 s at 6 x Ir
69…100 s at 1.5 x Ir
8…15 s at 1.5 x Ir
0.2…0.74 s at 7.2 x Ir
0.4…0.5 s at 6 x Ir
1…1.4 s at 7.2 x Ir
1.5…2 s at 6 x Ir
2…2.8 s at 7.2 x Ir
4…5.5 s at 7.2 x Ir
8.2…11 s at 7.2 x Ir
Short-time protection pick-up adjustment type Isd Adjustable 8 settings
[Isd] Short-time protection pick-up adjustment range 1.5...10 x Ir
Short-time protection delay adjustment type tsd Adjustable 4 settings
[tsd] Short-time protection delay adjustment range 0.015…0.06 s
0.06…0.14 s
0.14…0.23 s
0.23…0.35 s
Instantaneous protection pick-up adjustment type Ii Adjustable 8 settings
earth-leakage protection With
Neutral protection settings 0.5 x Ir
Display type Display