IΔ
n
(A) is the adjustable tripping
threshold for residual current (earth
leakage) protection.
It can be set between 30mA and 3A.
Available settings are shown below:
Δ
t
(ms) is a time delay which is intro-
duced to the residual current (earth
leakage) protection characteristic.
Available settings are shown below.
It can also be set to 0 (max. actual
tripping time is 40ms) or NT (No Trip
- tripping time = ∞ ).
The maximum breaking time at each
setting is shown in brackets.
Note that if /Δ
t
is set at 30mA, Δ
t
defaults to 0.
/
R
(A) is the adjustable tripping
threshold for overload protection.
It can be set between 0.63 and 1.0
times /n. Available /n ratings are
shown below:
/
i
is the tripping threshold for
short-circuit protection.
It is fixed at the values shown below:
Models, ratings and settings
ADJUSTMENT DIALS
Model
Breaking
capacity
IΔn (A)
Δt (ms)
Rated current
I
n
(A)
Magnetic trip
current I
i
(A)
MSXD 125
25 kA
0.03, 0.1, 0.3, 0.5, 1, 3
0 (40), 60 (195), 200 (365), 400 (620), 700 (950), NT
∞
20, 32, 50, 63, 100
12 x In
125
10 x In
36 kA
0.03, 0.1, 0.3, 0.5, 1, 3
0 (40), 60 (195), 200 (365), 400 (620), 700 (950), NT
∞
20, 32, 50, 63, 100
12 x In
125
10 x In
MSXD 160
MSXD 250
25 kA
0.03, 0.1, 0.3, 0.5, 1, 3
0 (40), 60 (195), 200 (365), 400 (620), 700 (950), NT
∞
160
13 x In
250
10 x In
36 kA
0.03, 0.1, 0.3, 0.5, 1, 3
0 (40), 60 (195), 200 (365), 400 (620), 700 (950), NT
∞
160
13 x In
250
10 x In
MSX
Technical Information
Version 2.0
38
MCCB WITH RESIDUAL CURRENT PROTECTION
MSXD 125 - MSXD 160 - MSXD 250
For technical information contact the Technical Assistance Service or visit gewiss.com
