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Technical
Section 11
Dimensions
Section 12
7
STI isolatable fuse carriers
Control and
circuit protection
Function
STI
The isolatable fuse-carriers provide overload and short-circuit protection and are
used in the tertiary and industrial sectors.
Fuse-links
aM, gG (gl, gL) types for STI.
Indicator light
230 V neon indicator adaptable on STI.
Description
STI
n
Isolation of all poles is guaranteed for the 2P, 3P, and 3P + N versions during
factory assembly
n
Positive contact indication
n
To be equiped with aM or gG (gL - gl) type fuse-links, with or without fuse
blowing indicator
Rating
Size
aM
gG
(A)
(mm)
fuse
fuse
0.5 to 20
8.5 x 31.5
n
1 to 20
10.3 x 38
n
25 to 32
10.3 x 38
n
n
Fuse-carrier: Captive, additional housing is provided for a spare fuse
n
Optional indication by indicator lights (see accessories)
n
Connection by tunnel terminals for rigid cables up to 10 mm
2
and flexible cables
up to 6 mm
2
n
Complies with standard IEC 947.3
Fuse-links
n
aM, gG (gL - gl) types
n
Fuse-link without striker pin
n
Breaking capacity as in the standards
Dimensions
Rating
Operating Breaking capacity
(ø x L)
(A)
voltage
(kA)
(mm)
(V AC)
aM gG
8.5 x 31.5
All
380
20
20
10 x 38
<10
500
80
80
25
660
80
80
n
Complies with standards NF C 60 200 and NF C 63 210
n
Véritas and Lloyds approved
Indicator light (option)
Technical data
230V AC neon (400V AC maximum)
Allows indication of fuse blowing (lift after blowing)
Specific characteristics
STI 1P + N and 3P + N
n
Disconnection of the phase and neutral in the normal dimensions of the phase
(2 modules of 9 mm)
n
Phase opening causes compulsory opening of the neutral
n
The phase opens before the neutral on isolation and closes after the neutral on
circuit closing