Functions
4.1 Protection functions
3VL IEC molded case circuit breakers
System Manual, 11/2013, 110 0110 - 02 DS 03
39
Order No.
supplement
Releases
Overload
protection
Short-circuit protection
(short-time delayed)
Short-circuit
protection
Ground-fault protection
3)
3)
3)
3)
UJ LCD-ETU40 0,4 ... 1 1,5 ... 10 0 ... 0,5 1,25 ... 11 — —
1)
Size dependent
2)
TM to I
n
= 630 A
3)
Motor protection to I
n
= 500 A
4)
Fixed
5)
With single-pole load, tripping occurs at 130% of the set instantaneous short-circuit
current.