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BETA Protecting
Miniature Circuit Breakers
Additional components
1/28
Siemens ET B1 · 10/2008
1
*
You can order this quantity or a multiple thereof.
■
Overview
Using this mounting concept, all additional 5ST3 components
can be combined with miniature circuit breakers of the 5SY,
5
SP4 and 5SP5 series.
The auxiliary switch (AS) signals the contact position. In the event
of a fault, the fault signal contact (FC) signals the automatic tripping
of the miniature circuit breaker and the contact position.
Undervoltage releases are integrated in an EMERGENCY STOP
loop, thus ensuring that the miniature circuit breaker trips in the
event of an emergency, which in turn ensures disconnection of
the control circuit according to EN 60204. In the event that the
voltage is interrupted or too low, it also trips, i.e. prevents the
miniature circuit breaker from switching on.
Shunt trips are used for the remote tripping of miniature circuit
breakers.
Remote controlled mechanisms are used for the remote ON/OFF
switching of miniature circuit breakers and the remote ON
switching of RC units. Remote controlled mechanisms also
enable local manual switching. A blocking function permits
maintenance work. In the event that a miniature circuit breaker
or RC unit is tripped, an acknowledgment must be carried out
prior to switching back on.
For information on RC units, please refer to the section "Residual
current protective devices".
■
Benefits
•
Bus systems, such as instabus KNX, AS-Interface bus or
PROFIBUS, are integrated in the communication over binary
inputs and actuators.
•
Captive metal brackets on the additional components ensure
fast mounting of the devices.
Auxiliary switches (AS)
•
Huge range of applications, thanks to additional versions for
the switching of small currents and voltages for the control
of programmable control systems (PLCs) according to
EN 61131-2.
Remote controlled mechanisms (RC)
•
The remote controlled mechanism has an operating mode
selector switch with the functions: "Locked", "Manual" and
"
Remote switching". The mechanism can be mechanically
latched and locked, which serves to protect personnel during
maintenance work.
■
Technical specifications
Auxiliary switches
Fault signal contacts
5
ST3 010
5
ST3 011
5
ST3 012
5
ST3 013
5
ST3 014
5
ST3 015
5
ST3 020
5
ST3 021
5
ST3 022
Standards
EN 62019; UL 1077; CSA C22.2 No. 235
Approved acc. to
EN 62019; UL 1077; UL File No. E106582; CSA C22.2 No. 235
Short-circuit protection
B6 miniature circuit breaker, C6 or fuse gG 6 A
Contact load
Min.
50
mA, 24 V
1
mA/5 V DC
50
mA, 24 V
Contact load
Max.
--
50
mA/30 V DC
--
• 400
V AC, AC-14, NO contact
A
2
--
2
• 230
V AC, AC-14, NO contact
A
6
--
6
• 400
V AC, AC-13, NC contact
A
2
--
2
• 230
V AC, AC-13, NC contact
A
6
--
6
• 220
V DC, DC-13, NO + NC contact
A
1
--
1
• 110
V DC, DC-13, NO + NC contact
A
1
--
1
• 60
V DC, DC-13, NO + NC contact
A
3
--
3
• 24
V DC, DC-13, NO + NC contact
A
6
--
6
Undervoltage releases Shunt trips
Remote controlled
mechanisms
5
ST3 04.
5
ST3 030
5
ST3 031
5
ST3 050
Standards
EN 60898; EN 60947-1
Rated voltages U
n
V AC 230
24 ... 48
230
110 ... 415
•
Rated frequency f
n
Hz
--
50 ... 60
50 ... 60
V DC 24, 110
24 ... 48, 110
--
Response limits
•
Acc. to EN 60947-1, 7.2.1.3
Releases
< 0.35 ... 0.7 × U
n
--
--
Permissible
fluctuations of the
power supply
0.85 ... 1.1
× U
n
--
--
•
Acc. to EN 60947-1, 7.2.1.4
--
0.7 ... 1.1
× U
n
--
© Siemens AG 2008