Datasheet

Fuse Systems
DIAZED fuse systems,
5SA, 5SB, 5SC, 5SD
16
Siemens · 2010
■ Overview
The DIAZED fuse system is one of the oldest fuse systems in the
world. It was developed by Siemens as far back as 1906. It is still
the standard fuse system in many countries to this day. It is
particularly widely used in the harsh environments of industrial
applications.
The series is available with rated voltages from 500 A to 750 V.
All DIAZED bases must be fed from the bottom to ensure an
insulated threaded ring when the fuse link is being removed.
Reliable contact of the fuse links is only ensured when used
together with DIAZED screw adapters.
The terminals of the DIAZED bases are available in different
versions and designs to support the various installation
methods.
The high-performing EZR bus-mounting system for screw fixing
is an outstanding feature. The busbars, which are particularly
suited for bus-mounting bases, have a load capacity of up to
150 A with lateral infeed.
DIAZED stands for Dia
metral gestuftes zweiteiliges
Sicherungssystem mit Ed
isongewinde (diametral two-step fuse
system with Edison screw).
■ Benefits
■ Technical specifications
DIAZED fuse systems are a result of a well-designed modular
system which enables the components to be combined in any
way to meet the various requirements and to facilitate different
installation methods.
$ DIAZED bases
% DIAZED covers
& DIAZED cover rings
( DIAZED caps
) DIAZED fuse links, DII
* DIAZED fuse links, NDz
+ DIAZED screw adapters
, DIAZED adapter sleeves
- DIAZED screw caps
. Busbars, oblong hole, single-phase
/ Terminal, fork-type terminal, non-insulated
5SA, 5SB, 5SC, 5SD
Standards
IEC 60269-3; DIN VDE 0635; DIN VDE 0636-3; CEE 16
Operational class Acc. to IEC 60269; DIN VDE 0636
gG
Characteristic Acc. to DIN VDE 0635
Slow and quick
Rated voltage U
n
V AC 500, 690, 750
V DC
500, 600, 750
Rated current I
n
A 2 ... 100
Rated breaking capacity kA AC
50, 40 at E16
kA DC
8, 1.6 at E16
Mounting position
Any, but preferably vertical
Non-interchangeability
Using screw adapter or adapter sleeves
Degree of protection Acc. to IEC 60529
IP20, with connected conductors
Resistance to climate °C
Up to 45, at 95 % rel. humidity
Ambient temperature °C
-5 ... +40, humidity 90 % at 20
Terminal version
B K S R
Size
DII DIII NDz DII DIII DIII DIV DII DIII
Conductor cross-sections
• Rigid, min. mm
2
1.5 2.5 1.0 1.5 2.5 2.5 10 1.5 1.5
• Rigid, max. mm
2
10 25 6 10 25 25 50 35 35
• Flexible, with end sleeve mm
2
10 25 6 10 25 25 50 35 35
Tightening torques
• Screw M4 Nm 1.2 --
• Screw M5 Nm
2.0 --
• Screw M6 Nm
2.5 4
• Screw M8 Nm
3.5 --
I201_16013a
7
9
5
3
6
8
11
10
2
1
4
LV10-1_THB_05_EN.book Seite 16 Montag, 6. Juni 2011 12:19 12
© Siemens AG 2011