SENTRON
Residual Current Protective Devices /
Arc Fault Detection Devices
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© Siemens AG 2016
Siemens · 10/2015
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2Introduction
45SV / 5SM3 RCCBs
13 SIQUENCE 5SM3/5SU1 universal
current sensitive RCCBs,
type B and type B+
19 Additional components
23 5SM2 RC units
26 5SU1 RCBOs
34 5SM6 AFD units
37 5SM6 AFD units
for PV applications
39 5ST busbars for
modular installation devices
42 5SM1 and 5SZ9 RCCB
socket outlets
43 Configuration
Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
PH_04.book Seite 1 Montag, 11. Januar 2016 3:03 15
© Siemens AG 2016
2Siemens · 10/2015
Introduction
Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
■
Overview
Devices Page Application Standards Used in
Non-residential
buildings
Residential
buildings
Industry
5SV RCCBs
4
Personnel, material and fire protection,
as well as protection against direct
contact.
SIGRES with active condensation pro-
tection for use in harsh environments.
Super resistant and selective versions
IEC/EN 61008
ÖVE EN 61008
ÖVE/ÖNORM E 8601
IEC/EN 62423
✓ ✓ ✓
5SM3 RCCBs
4
Personnel, material and fire protection,
as well as protection against direct
contact
IEC/EN 61008
ÖVE EN 61008
ÖVE/ÖNORM E 8601
IEC/EN 62423
✓ ✓ ✓
SIQUENCE 5SM3/5SU1
Universal current sensitive RCCBs,
type B and type B+
13
SIQUENCE, the technology of universal
current-sensitive residual current pro-
tective devices
VDE 0664-100
VDE 0664-200
VDE V 0664-110
✓-- ✓
Additional components
19
Remote controlled mechanisms,
auxiliary switches for all residual current
operated circuit breakers.
Leakage current measurement device
for fault locating and the optimum
selection of RCCBs
IEC/EN 62019 ✓-- ✓
RC units, 5SM2
23
The freely selectable combination of RC
units with miniature circuit breakers per-
mits the flexible configuration of RCBO
combinations
IEC/EN 61009 ✓-- ✓
5SU1 RCBOs
26
The ideal protection combination for all
electrical circuits due to the compact
device versions of RCCBs and minia-
ture circuit breakers in a single device
IEC/EN 61009 ✓ ✓ ✓
5SM6 AFD units
34
Enhanced fire protection through the
detection and isolation of arcing faults IEC/EN 62606 ✓ ✓ --
5ST busbars for modular
installation devices
39
Busbars in 10 mm
2
and 16 mm
2
save
space in the distribution board and time
during mounting.
-- ✓ ✓ ✓
5SM1 and 5SZ9 RCCB
Socket outlets
42
For retrofitting in existing installations VDE 0664 ✓ ✓ ✓
Configuration
43
This section tells you all you need to
know about RCCBs in combination with
miniature circuit breakers, with informa-
tion about tripping characteristics,
selectivity and breaking capacity
-- ✓ ✓ ✓
30 mA
2 3 4
10 mA
PH_04.book Seite 2 Montag, 11. Januar 2016 3:03 15
© Siemens AG 2016
3
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Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
Introduction
SIGRES
SIGRES RCCBs were developed for use in harsh ambient con-
ditions, such as swimming baths as protection against chlorine
and ozone, in the agricultural sector (ammonia), on building
sites and in the chemical industry (nitrogen oxide, sulfur dioxide,
solvents), in the food processing industry (hydrogen sulfide) and
in unheated rooms (dampness). The patented active condensa-
tion protection requires a continuous power supply and bottom
infeed if the RCCB is switched off.
When used in ambient conditions as defined in product stan-
dard EN 61008-1, the operation interval for pressing the test
button can be extended to once a year.
Super resistant
æ
Super resistant (short-time delayed) RCCBs meet the maximum
permissible break times for instantaneous devices. However,
by implementing a short-time delay they prevent unnecessary
tripping operations, and thus plant faults, when pulse-shaped
leakage currents occur – as is the case when capacitors are
switched on.
Selective
î
Can be used as upstream group switch for selective tripping
contrary to downstream, instantaneous or short-time delayed
RCCBs.
Note:
For more information on the subject of residual current protective
devices, see the technology primer
"Residual Current Protective Devices",
Article No.: E10003-E38-2B-G0090-7600.
Selection aid for finding the appropriate residual current protective
device
RCCB RCBO
SIGRES 500 V 50- 400 Hz
RC unit
K S
A
AC
3+N1+N 42
BCD
3
I201_15509b
F
B+
B
Design Selection
criterion
Type Equipment, circuit,
load current,
residual current
System, equipment,
ambient conditions
Equipment
Version
Number of poles
Additional
protection
I∆n ≤ 30 mA
Fire
protection
I∆n ≤ 300 mA
Trip conditions
limited I∆n
Installation
regulation
VDE 0100-410
Rated residual current I∆n
protection objective
-530
-7xx
-482
EquipmentRated current In
Trip conditions acc.
to VDE 0100-410
Equipment
Only with RCBOs with
MCB characteristic
VDS 3501
Residual current
protection
I∆n > 30mA
PH_04.book Seite 3 Montag, 11. Januar 2016 3:03 15
© Siemens AG 2016
4Siemens · 10/2015
5SV / 5SM3 RCCBs
Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
■
Overview
RCCBs are used in all systems up to 240/415 V AC. Devices of
type AC trip in the event of sinusoidal AC residual currents, type
A also trips in the event of pulsating DC residual currents.
In addition, RCCBs type F also detect residual currents with
mixed frequencies up to 1 kHz.
RCCBs with a rated residual current of maximum 30 mA are
used for personnel, material and fire protection, as well as for
protection against direct contact. RCCBs with a rated residual
current of 10 mA are primarily used in areas that represent an
increased risk for personnel.
Since the introduction of DIN VDE 0100-410, all socket outlet
current circuits up to 20 A must also be fitted with residual
current protective devices with a rated residual current of
max. 30 mA. This also applies to outdoor electrical circuits
up to 32 A for the connection of portable equipment.
Devices with a rated residual current of maximum 300 mA are
used as preventive fire protection in case of insulation faults.
RCCBs with a rated residual current of 100 mA are primarily
used outside Europe.
■
Benefits
• Instantaneous RCCBs with the N connection on the left-hand
side enable simple bus mounting with standard pin busbars
with miniature circuit breakers installed on the right-hand side
• Instantaneous RCCBs with the N connection on the right-hand
side can be bus-mounted with miniature circuit breakers using
a special pin busbar
• Instantaneous type A devices have a surge current withstand
capability with current waveform 8/20 μs of more than 1 kA,
super resistant of more than 3 kA and selective of more than
5 kA. This ensures safe operation
• SIGRES has an extremely long service life due to a patented
active condensation protection and identical dimensions en-
able the quick and easy replacement of existing instanta-
neous RCCBs
• Super resistant devices increase system availability, as un-
necessary tripping is prevented in power supply systems with
short-time glitches
• Selective RCCBs increase system availability as a staggered
tripping time enables the selective tripping of RCCBs con-
nected in series in the event of a fault
• Auxiliary switches or remote controlled mechanisms are also
available as additional components
• The operating handle and the test button can be locked by
means of a handle locking device
• All additional components that match the 5SY and 5SL
miniature circuit breakers can also be fitted on the 5SV
PH_04.book Seite 4 Montag, 11. Januar 2016 3:03 15
© Siemens AG 2016
5
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Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
5SV / 5SM3 RCCBs
■
Technical specifications
5SV3
1)
5SV residual current operated circuit breakers have been developed for
50 Hz systems and can detect and shut down ground fault currents of this
frequency, but in the case of residual currents that deviate markedly from
this frequency, or that have a higher proportion of harmonics, the trip
values increase slightly.
Instantaneous SIGRES Super resistant Selective
Standards IEC/EN 61008-1 (VDE 0664-10); IEC/EN 61008-2-1 (VDE 0664-11);
IEC/EN 61543 (VDE 0664-30); IEC/EN 62423 (VDE 0664-40)
Surge current withstand capability
• Type A with current
waveform 8/20 µs Acc. to EN 60060-2
(VDE 0432-2) kA > 1 > 3 > 5
• Type F with current
waveform 8/20 µs Acc. to EN 60060-2
(VDE 0432-2) kA -- -- > 3 --
Minimum operational voltage for test function operation
• 30 mA devices V AC 195
• Non-30 mA devices V AC 100
• 24 V devices V AC 20
Test cycles 1/2 year 1 year 1/2 year
Insulation coordination
• Overvoltage category III
Pollution degree 2
Terminal conductor cross-sections
• 1-wire
-Solid (≤ 10 mm
2
) / stranded (≥ 16 mm
2
)mm
2
0.75 ... 35
- Finely stranded with non-insulated end sleeve mm
2
0.75 ... 25
- Finely stranded with insulated end sleeve mm
2
0.75 ... 25
- Finely stranded without end sleeve mm
2
1 ... 35
• 2-wire, same cross-section, same conductor type
-Solid (≤ 10 mm
2
) / stranded (≥ 16 mm
2
)mm
2
0.75 ... 10
- Finely stranded with non-insulated end sleeve mm
2
0.75 ... 4
- Finely stranded with insulated end sleeve mm
2
0.75 ... 4
- Finely stranded without end sleeve mm
2
1 ... 4
• 1-wire + busbar (pin thickness 1.5 mm)
-Solid (≤ 10 mm
2
) / stranded (≥ 16 mm
2
)mm
2
10 ... 25
- Finely stranded with non-insulated end sleeve mm
2
6 ... 25
- Finely stranded with insulated end sleeve mm
2
6 ... 16
Terminal tightening torque
•Up to I
n
= 80 A Nm 2.5
•At I
n
= 100 A, 125 A Nm 3.0 ... 3.5
Mains connection Top or bottom Bottom Top or bottom
Rated frequency Hz 50/60
1)
Mounting position (on a standard mounting rail) Any
Degree of protection Acc. to EN 60529
(VDE 0470-1) IP20, if the distribution board is installed, with connected conductors
Touch protection Acc. to EN 50274
(VDE 0660-514) Finger and back-of-hand safe
Service life Average number of switching cycles
Test cycle acc. to IEC/EN 61008 > 10000
Storage temperature °C -40 ... +75
Ambient temperature °C -25 ... +45,
marked with
Resistance to climate Acc. to IEC 60068-2-30 28 cycles (55 °C; 95 % rel. air humidity)
CFC and silicone-free Yes
-25
PH_04.book Seite 5 Montag, 11. Januar 2016 3:03 15
© Siemens AG 2016
6Siemens · 10/2015
5SV / 5SM3 RCCBs
Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
Power losses per conducting path
under rated current load
MLFB Power losses per
conducting path P
v
[W]
MLFB Power losses per
conducting path P
v
[W]
5SV3111-6 0.7 5SV3612-6 0.6
1)
Note:
For SIGRES versions, the power ratings below must be added
for each device for heating of the holding magnet release:
• 2 MW: 0.33 W
• 4 MW: 0.4 W
5SV3111-6KL 0.7 5SV3612-6KK01 0.5
5SV3311-6 0.4 5SV3612-6KL 0.6
5SV3311-6KK12 0.5
1)
5SV3612-8 0.5
5SV3311-6KK13 0.4 5SV3614-3 1.0
5SV3311-6KL 0.4 5SV3614-6 1.6
5SV3312-3 0.8 5SV3614-6KK01 1.0
5SV3312-6 1.0 5SV3614-6KL 1.6
5SV3312-6KK01 0.8 5SV3614-7 1.0
5SV3312-6KK12 0.8
1)
5SV3614-8 1.0
5SV3312-6KK13 1.0 5SV3614-8KL 1.0
5SV3312-6KL 1.0 5SV3616-3 2.7
5SV3314-3 1.5 5SV3616-6 2.7
5SV3314-6 2.6 5SV3616-6KK01 2.7
5SV3314-6KK01 1.5 5SV3616-6KL 2.7
5SV3314-6KK12 1.5
1)
5SV3616-8 2.7
5SV3314-6KK13 2.6 5SV3616-8KL 2.7
5SV3314-6KL 2.6 5SV3617-3 3.9
5SV3314-6LA 1.5 5SV3617-6 3.9
5SV3314-6LA01 1.5 5SV3617-6KK01 3.9
5SV3316-3 5.3 5SV3617-6KL 3.9
5SV3316-6 5.3 5SV3617-7 3.9
5SV3316-6KK01 5.3 5SV3617-8 3.9
5SV3316-6KK12 5.3
1)
5SV3642-3 0.8
5SV3316-6KK13 5.3 5SV3642-6 0.7
5SV3316-6KL 5.3 5SV3642-6KK01 0.8
5SV3317-3 5.6 5SV3642-6KK12 0.8
1)
5SV3317-6 5.6 5SV3642-6KL 0.7
5SV3317-6KK01 5.6 5SV3642-8 0.8
5SV3317-6KL 5.6 5SV3644-3 1.8
5SV3342-3 0.8 5SV3644-6 2.0
5SV3342-6 1.3 5SV3644-6KK01 1.8
5SV3342-6KK01 0.8 5SV3644-6KK12 1.8
1)
5SV3342-6KK03 1.3 5SV3644-6KL 2.0
5SV3342-6KK12 0.8
1)
5SV3644-7 1.8
5SV3342-6KL 1.3 5SV3644-8 1.8
5SV3344-3 1.8 5SV3644-8LA 1.8
5SV3344-6 3.9 5SV3646-3 3.9
5SV3344-6KK01 1.8 5SV3646-6 3.9
5SV3344-6KK03 3.9 5SV3646-6KK01 3.9
5SV3344-6KK12 1.8
1)
5SV3646-6KK12 3.9
1)
5SV3344-6KL 3.9 5SV3646-6KL 3.9
5SV3344-6LA 1.8 5SV3646-8 3.9
5SV3344-6LA01 1.8 5SV3646-8KK12 3.9
1)
5SV3346-3 3.9 5SV3646-8KL 3.9
5SV3346-6 3.9 5SV3646-8LA 3.9
5SV3346-6KK01 3.9 5SV3647-3 4.1
5SV3346-6KK12 3.9
1)
5SV3647-6 4.1
5SV3346-6KL 3.9 5SV3647-6KK01 4.1
5SV3346-6LA 3.9 5SV3647-6KK12 4.1
1)
5SV3346-6LA01 3.9 5SV3647-6KL 4.1
5SV3347-3 4.1 5SV3647-7 4.1
5SV3347-6 4.1 5SV3647-8 4.1
5SV3347-6KK01 4.1 5SV3652-6 0.8
5SV3347-6KK12 4.1
1)
5SV3654-6 1.8
5SV3347-6KL 4.1 5SV3656-6 3.9
5SV3352-6 0.8 5SV3657-6 4.1
5SV3354-6 1.8 5SV3742-6 0.8
5SV3356-6 3.9 5SV3744-6 1.8
5SV3357-6 4.1 5SV3746-6 3.9
5SV3412-6 0.6 5SV3746-6KL 3.9
5SV3412-6KL 0.6 5SV3747-6 4.1
5SV3414-6 1.6 5SV3846-8 3.9
5SV3414-6KL 1.6 5SV3312-6BA 1.0
PH_04.book Seite 6 Montag, 11. Januar 2016 3:03 15
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Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
5SV / 5SM3 RCCBs
5SV3416-6 2.7 5SV3314-6BA 2.6
1)
Note:
For SIGRES versions, the power ratings below must be added
for each device for heating of the holding magnet release:
• 2 MW: 0.33 W
• 4 MW: 0.4 W
5SV3416-6KL 2.7 5SV3316-6BA 5.3
5SV3416-8 5.3 5SV3342-6BA 1.3
5SV3417-6 3.9 5SV3344-6BA 3.9
5SV3417-6KL 3.9 5SV3346-6BA 3.9
5SV3442-6 0.7 5SV3612-6BA 0.6
5SV3444-6 2.0 5SV3614-6BA 1.6
5SV3444-6LA 1.8 5SV3616-6BA 2.7
5SV3444-6LA01 1.8 5SV3642-6BA 0.7
5SV3444-8 1.8 5SV3644-6BA 2.0
5SV3444-8LA 1.8 5SV3646-6BA 3.9
5SV3446-6 3.9 5SV5311-6KL 0.4
5SV3446-6LA 3.9 5SV5312-6KL 1.0
5SV3446-6LA01 3.9 5SV5314-6KL 2.6
5SV3446-8 3.9 5SV5342-6KL 1.3
5SV3446-8LA 3.9 5SV5344-6KL 3.9
5SV3447-6 4.1 5SV5346-6KL 3.9
5SV3612-3 0.5 5SV5646-6KL 3.9
Power losses per conducting path
under rated current load
MLFB Power losses per
conducting path P
v
[W]
MLFB Power losses per
conducting path P
v
[W]
PH_04.book Seite 7 Montag, 11. Januar 2016 3:03 15
© Siemens AG 2016
8Siemens · 10/2015
5SV / 5SM3 RCCBs
Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
5SM3
Instantaneous Selective
Standards IEC/EN 61008-1 (VDE 0664-10); IEC/EN 61008-2-1 (VDE 0664-11);
IEC/EN 61543 (VDE 0664-30); IEC/EN 62423 (VDE 0664-40)
Surge current withstand capability
• Type A with current
waveform 8/20 µs Acc. to EN 60060-2
(VDE 0432-2) kA > 1 > 5
Minimum operational voltage for test function operation V AC 195
Test cycles 1/2 year
Insulation coordination
• Overvoltage category III
Pollution degree 2
Terminal conductor cross-sections
•2 MW I
n
= 100 A, 125 A mm
2
1.5 ... 50
•4 MW I
n
= 100 A, 125 A mm
2
2.5 ... 50
Terminal tightening torque
•I
n
= 100 A, 125 A Nm 3.0 ... 3.5
Mains connection Top or bottom
Mounting position (on a standard mounting rail) Any
Degree of protection Acc. to EN 60529
(VDE 0470-1) IP20, if the distribution board is installed, with connected conductors
Touch protection Acc. to EN 50274
(VDE 0660-514) Finger and back-of-hand safe
Service life Average number of switching cycles > 10000
Storage temperature °C -40 ... +75
Ambient temperature °C -25 ... +45,
marked with
Resistance to climate Acc. to IEC 60068-2-30 28 cycles (55 °C; 95 % rel. air humidity)
CFC and silicone-free Yes
-25
Power losses per conducting path
under rated current load
Note:
0.4 W per unit must be added for SIGRES versions.
Number of
poles
Rated current Rated residual
current I
Δn
[mA]
Power losses per
conducting path P
v
[W]
216 10 2.5
30 0.82
25 30 2
100/300 1
40 30 4.3
100/300 2.5
63 30 4.2
100/300 3.25
80 30 4.4
100/300 3.65
425 30 1.2
300/500 0.47
40 30 3
100/300/500 1.2
63 30 4.9
100/300/500/1000 3
80 30 5.8
300 4.8
125 30 8.9
100/300/500 8.9
PH_04.book Seite 8 Montag, 11. Januar 2016 3:03 15
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Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
5SV / 5SM3 RCCBs
Table: Possible residual current forms and suitable residual current devices
L1
N
PE
iL
iF1 iF2
M
L1
N
PE
iL
iF1 iF2
M
L2
L1
N
PE
iL
iF1 iF2
M
L2
L3
iF2
t
iF2
t
iF2
t
iL
t
iL
t
iL
t
mX
mX
mX
mX
mX
mX
mX
mX
mX
mX
iF1
iF1
iF1
iF1
iF1
iF1
iF1
iF1
iF1
iF1
iF1
iF1
iF1
Suitable RCCB type Circuits Load current Residual current
i201_16045
11
12
13
FB
B+
AAC
PH_04.book Seite 9 Montag, 11. Januar 2016 3:03 15
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10 Siemens · 10/2015
5SV / 5SM3 RCCBs
Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
■
Configuration
When using residual current protective devices type F, please
note the following:
• They are not suitable for equipment that can generate smooth
DC residual currents (see Table, page 9, circuits 8 to 13).
• They are not suitable for installation in networks with frequen-
cies that deviate from the rated frequency (50 Hz) (not at the
outgoing terminal of a frequency converter).
• When configuring and setting up electrical systems with
type F, the same applies as for residual current protective
devices type A, i.e. electrical loads that can generate smooth
DC residual currents in the event of a fault are assigned their
own circuit with a universal current-sensitive residual current
protective device (type B or type B+).
It is not permitted to branch off electrical circuits with these types of
electrical loads downstream of pulse-current-sensitive residual current
protective devices (type A or type F).
kHz
Type
AC/A/F
Type
AC/A/F
Type
B/B+
Wh
i201_18413
≥ 300 mA
n
IS
≤ 100 mA
n
I≥ 30 mA
n
I
kHz
Type
AC/A/F
Type
AC/A/F
Type
B/B+
Wh
i201_18414
≥ 300 mA
n
IS
≤ 100 mA
n
I≥ 30 mA
n
I
PH_04.book Seite 10 Montag, 11. Januar 2016 3:03 15
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Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
5SV / 5SM3 RCCBs
■
Dimensional drawings
5SV3 dimensional drawings
5SM3 dimensional drawings
RCCBs, type A and type AC
1P+N, 2 MW RCCBs, type A and type AC
3P+N, 4 MW
35,8
I201_18655
89,8
6,2
43,9
45,15
64
71
20
43,9
64
71
20
45,15
I201_18656
6,2
71,8
89,8
RCCBs up to 80 A
1P+N
2 MW 1P+N
2.5 MW 3P+N
4 MW
RCCBs 100 and 125 A
1P+N, 2 MW 3P+N, 4 MW
36 45 72
45
90
44
647
I201_07860c
1N
2N
1N
2N
1N
2N
3
4
5
6
72
1/L1 3/L2 5/L3 7/N
2/L1 4/L2 6/L3 8/N
I201_07830a
45
87
44
65
7
68
PH_04.book Seite 11 Montag, 11. Januar 2016 3:03 15
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12 Siemens · 10/2015
5SV / 5SM3 RCCBs
Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
■
Circuit diagrams
Graphic symbols
Note:
The infeed for SIGRES devices must be from below at terminals
2, 4, 6 and N.
1P+N 3P+N
N connection, right
N connection, left N connection, left
2N
N1
Tx
I201_13636
246 N
15N3
Tx
I201_13637
2N
N1
Tx
I202_25058
246N
N351
I201_13638
PH_04.book Seite 12 Montag, 11. Januar 2016 3:03 15
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Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
SIQUENCE 5SM3/5SU1 universal current-sensitive RCCBs, type B and type B+
■
Overview
Frequency converters, medical devices and UPS systems are
seeing increasing use in industry. Smooth DC residual currents
or currents with low residual ripple may occur in the event of
faults on these devices.
Type A residual current protective devices are unable to detect
these smooth DC residual currents. Furthermore, such smooth
DC residual currents make type A devices increasingly insensi-
tive to AC residual currents and pulsating DC residual currents.
If a fault occurs, there is therefore no tripping and the desired
protective function is no longer assured.
UC-sensitive residual current protective devices of types B and
B+ have an additional transformer which is supplied with a con-
trol signal. This enables an evaluation of the change of the trans-
former's operating range caused by smooth DC residual cur-
rents, thus ensuring the desired protective function.
The residual current protective devices of type B are suitable for
use in three-phase current systems before input circuits with rec-
tifiers. They are not intended for use in DC systems and in net-
works with operating frequencies other than 50 Hz or 60 Hz.
The devices in this series are designed as residual current oper-
ated circuit breakers (RCCBs) up to 80 A and as residual current
circuit breakers with integral overcurrent protection (RCBOs) for
100 A or 125 A in Characteristics C or D.
All universal current-sensitive RCCBs, type B or B+ are now also
available in a SIGRES version, meaning they are also ideal for
use in harsh ambient conditions.
When used in ambient conditions as defined in product stan-
dard EN 61008-1, the operation interval for pressing the test
button can be extended to once a year.
■
Benefits
• Universal current-sensitive residual current protective devices
detect not only AC residual currents and pulsating DC residual
currents, but also smooth DC residual currents, thus ensuring
the desired protective function with all types of residual current
• With type B, the tripping characteristic is adapted to suit the
increase of leakage currents at higher frequencies in systems
with capacitive impedances, thus ensuring greater operating
safety
• Type B+ versions offer enhanced preventative fire protection
and correspond to the prestandards DIN V VDE V 0664-110
and/or DIN V VDE V 0664-210 and VdS Directive 3501
• The RCBO is a compact device for up to 125 A. It provides not
only personnel, material and fire protection but also overload
and short-circuit protection for cables. This reduces wiring
and mounting outlay
• The RCBOs offer external remote tripping over terminals
Y1/Y2 This supports implementation of central OFF circuits.
PH_04.book Seite 13 Montag, 11. Januar 2016 3:03 15
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14 Siemens · 10/2015
SIQUENCE 5SM3/5SU1 universal current-sensitive RCCBs, type B and type B+
Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
■
Technical specifications
SIQUENCE, 5SM3 RCCBs, type B and type B+ SIQUENCE, 5SU1 RCBOs type B and type B+
Standards IEC/EN 62423 (VDE 0664-40);
IEC/EN 61543 (VDE 0664-30);
additionally applicable for type B+;
DIN VDE 0664-400
IEC/EN 62423 (VDE 0664-40);
IEC/EN 61543 (VDE 0664-30);
additionally applicable for type B+;
DIN VDE 0664-401
Versions 1P+N 3P+N 4P
Tripping characteristic -- -- C, D
Surge current withstand capability
With current waveform 8/20 µs
Acc. to EN 60060-2 (VDE 0432-2)
• Super resistant kA > 3 > 3 > 3
• Selective kA -- > 5 > 5
Minimum operational voltage for test
function operation
V AC 195 195 195
Rated voltages U
n
V AC 230 400 400, 480
Rated frequency f
n
Hz 50 ... 60
Rated currents I
n
A16, 25, 40, 63 25, 40, 63, 80 100, 125
Rated residual currents I
Δn
mA 30, 300 30, 300, 500 30, 300
Rated breaking capacity
•I
m
A800 --
•I
cn
kA -- 10
Insulation coordination
• Overvoltage category III
Conductor cross-sections
• Solid and stranded mm
2
1.5 ... 25 6 ... 50
• Finely stranded, with end sleeve mm
2
1.5 ... 16 6 ... 35
Terminal tightening torque
For all devices Nm 2.5 ... 3.0 3.0 ... 3.5
Mains connection Either top or bottom
(bottom for the effectiveness of the SIGRES function even when switched off)
Mounting position (on a standard
mounting rail)
Any
Degree of protection according to EN 60529
(VDE 0470-1) IP20, if the distribution board is installed, with connected conductors
Touch protection
Acc. to EN 50274 (VDE 0660-514) Finger and back-of-hand safe
Service life
Average number of switching cycles > 10000 switching cycles
Storage temperature °C -40 ... +75
Ambient temperature °C -25 ... +45,
marked with
Resistance to climate acc. to IEC 60068-2-30 28 cycles (55 °C; 95 % rel. air humidity)
CFC and silicone-free Yes
-25
Power losses per conducting path under rated current load
Note:
0.4 W per unit must be added for SIGRES versions.
Number of
poles
Rated current Rated residual
current I
Δn
[mA]
Power losses per
conducting path P
v
[W]
2/4 16 30/300 0.17
25 30/300 0.42
40 30/300 1.09
63 30/300/500 2.7
80 30/300/500 4.35
PH_04.book Seite 14 Montag, 11. Januar 2016 3:03 15
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15
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Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
SIQUENCE 5SM3/5SU1 universal current-sensitive RCCBs, type B and type B+
■
Characteristic curves
Tripping current as a function of frequency for type B
Tripping current as a function of frequency for type B+
I202_02428a
Frequency (Hz)
Tripping current (mA)
Tripping values for rated residual current 30 mA
Tripping values for rated residual current 300 mA
Tripping values for rated residual current 300 mA S
Tripping values for rated residual current
500 mA / 500 mA S
Upper limit according to VDE 0664-100 for 30 mA
Upper limit according to VDE 0664-100 for 300 mA
Upper limit according to VDE 0664-100 for 500 mA
100001000100101
10000
1000
100
10
I201_18122
Frequency (Hz)
Tripping current (mA)
Tripping values for rated residual current 30 mA
Tripping values for rated residual current 300 mA
Upper limit according to DIN V VDE V 0664-110 and DIN V VDE V 0664-210 for 30 mA
Upper limit according to DIN V VDE V 0664-110 and DIN V VDE V 0664-210 for 300 mA
100001000100101
10000
1000
100
10
PH_04.book Seite 15 Montag, 11. Januar 2016 3:03 15
© Siemens AG 2016
16 Siemens · 10/2015
SIQUENCE 5SM3/5SU1 universal current-sensitive RCCBs, type B and type B+
Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
■
Dimensional drawings
■
Circuit diagrams
Graphic symbols
SIQUENCE RCCBs, type B and type B+
1P+N, 4 MW SIQUENCE RCCBs, type B and type B+
3P+N, 4 MW
SIQUENCE RCBOs, type B and type B+
4P, 11 MW
I201_13972
44
64
72
7
45
90
N1
N2
T
T
72
N642
N531
I201_12429a
45
44
90
647
45
90
max 67
7
198 44
70
I201_13622
SIQUENCE RCCBs, type B
and type B+ SIQUENCE RCCBs, type B
and type B+ SIQUENCE RCBOs, type B
and type B+
1P+N, 4 MW 3P+N, 4 MW 4P, 11 MW
I201_13973
N2
N1
T
135N
246N
I201_13765a
Y1 Y2 1 3 5 7
2468
I201_13766
PH_04.book Seite 16 Montag, 11. Januar 2016 3:03 15
© Siemens AG 2016
17
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Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
SIQUENCE 5SM3/5SU1 universal current-sensitive RCCBs, type B and type B+
■
More information
Device configuration
Universal current-sensitive protective devices are based on a
pulse-current-sensitive circuit-protection device with tripping in-
dependent of line voltage, supplemented with an auxiliary unit
for the detection of smooth DC residual currents. The following
diagrams show the basic design.
The summation current transformer W1 monitors the electrical
system for AC and pulse current-type residual currents. The
summation current transformer W2 detects the smooth DC
residual currents and, in the event of a fault, relays the tripping
command through electronic unit E to release A, which uses the
mechanics to disconnect the circuit.
Design of RCCBs type B and type B+
Design of RCBOs type B and type B+
Method of operation
The universal current-sensitive residual current protective de-
vices work independently of the supply voltage compliant with
applicable requirements in Germany for Type A according to
DIN VDE 0664-100.
A voltage supply is required solely for the detection of smooth
DC residual currents by a second transformer. This is done from
all system cables and is dimensioned so that the electronics still
reliably trip even with a voltage reduction to 50 V.
This ensures tripping for smooth DC residual currents, as long as
such residual current waveforms can occur, even in the event of
faults in the electrical power supply, e.g. an N-conductor break.
This means that the pulse-current-sensitive breaker component,
which trips regardless of line voltage, will still reliably trigger the
tripping operation – even in the highly unlikely event that two
phase conductors and the neutral conductor fail – if the remain-
ing intact phase conductor presents a fire hazard due to a
ground fault.
The residual current protective devices of type B are suitable for
use in three-phase current systems before input circuits with rec-
tifiers. They are not intended for use in DC systems and in net-
works with operating frequencies other than 50 Hz or 60 Hz.
RCBOs are a combination of an RCCB and a miniature circuit
breaker for up to 125 A in a single compact device.
This means they provide not only personnel, property and fire
protection, but also overload and short-circuit protection for
cables. The mechanics of the residual current protective device
act on the tripping unit of the miniature circuit breaker, which dis-
connects the circuit.
MMechanics of the RCCB
LS Miniature circuit breaker component
ARelease
EElectronics for tripping in the event of smooth DC residual currents
nSecondary winding
W1 Summation current transformer for detection of sinusoidal residual
currents
W2 Summation current transformer for detection of smooth DC residual
currents
TTest equipment
E
642 N
T
An
n
W1
W2
I201_13608a
M
5
31 N
E
642 8
T
An
n
W1
W2
I201_13609b
5
31 7
MLS
PH_04.book Seite 17 Montag, 11. Januar 2016 3:03 15
© Siemens AG 2016
18 Siemens · 10/2015
SIQUENCE 5SM3/5SU1 universal current-sensitive RCCBs, type B and type B+
Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
Protective effect at high frequencies
In addition to the described residual current waveforms
(AC residual currents, pulsating and smooth DC residual
currents), AC residual currents with a wide range of frequen-
cies may also occur on electronic equipment such as rectifiers
in frequency converters or computer tomographs as well as at
the outgoing terminal of a frequency converter.
Requirements for frequencies up to 2 kHz are defined in the
device regulations DIN VDE 0664-100.
To date, only limited statements can be made with regard to the
risk of ventricular fibrillations (up to 1 kHz) for frequencies higher
than 100 Hz. No reliable statements can be made on any further
effects of thermal or electrolytic influence on the human
organism.
For this reason, protection against direct contact is only possible
for frequencies up to 100 Hz.
For higher frequencies, protection against indirect contact must
be implemented under consideration of the frequency response
of the residual current protective device, the maximum permissi-
ble touch voltage up to 50 V and permissible grounding resis-
tance derived from this information.
1)
For type B+ the value is allowed to be up to 120 Ω at 50 V and 60 Ω at 25 V.
Recommended maximum grounding resistance for SIQUENCE universal
current-sensitive residual current protective devices type B and type B+.
Versions
Super resistant
æ
:
Short-time delayed tripping in the case of transient leakage
currents. High surge current withstand capability > 3 kA.
Selective
î
:
Can be used as upstream group switch for selective tripping
contrary to a downstream, instantaneous or super resistant
RCCB.
Configuration
DIN VDE 0100-530 "Selection of protective devices" also
describes the configuration of systems with residual current
protective devices.
EN 50178 (DIN VDE 0160) "Electronic equipment for use in
power installations" describes, among other things, how to
select the type of residual current protective device suitable.
When configuring and installing electrical installations, electrical
loads that can generate smooth DC residual currents in the
event of a fault must be assigned a separate electrical circuit
with a universal current-sensitive residual current protective
device (type B):
It is not permitted to branch electrical circuits with these types of
electrical loads after pulse-current-sensitive residual current
protective devices (type A):
Rated residual current Max. permissible grounding resistance
for touch voltage
50 V 25 V
30 mA 160 Ω80 Ω
300 mA 16 Ω
1)
8 Ω
1)
500 mA 10 Ω5 Ω
S
n
nn
≥
≤≥
I201_13610c
Type
AC/A
300 mA
Type
AC/A
100 mA
Type
B/B+ 30 mA
Wh
230/400 V AC,
3-phase
Wh
Type
AC/A 300 mA
Type
AC/A
100 mA
Type
B/B+
30 mA
≥
≤≥
S
230/400 V AC,
3-phase
n
nn
I201_13611c
PH_04.book Seite 18 Montag, 11. Januar 2016 3:03 15
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19
Siemens · 10/2015
Residual Current Protective Devices / Arc Fault Detection Devices (AFDDs)
Additional components
■
Overview
Auxiliary switches (AS)
The auxiliary switch (AS) always signals the contact position,
regardless of whether the RCCB was tripped manually or as the
result of a fault. An additional version is also available for the
switching of small currents and voltages for the control of pro-
grammable control systems (PLCs) acc. to EN 61131-2. The
auxiliary switch with test button enables the testing of control
circuits without the need to switch the RCCB.
Fault signal contacts (FC)
The fault signal contact (FC) signals automatic breaking in the
event of a fault. If the fault signal contact is activated, the contact
position does not change if the RCCB is tripped manually. Fault
signal contacts with TEST and RESET buttons enable testing of
control circuits without the need to trip the RCCB. The red RESET
button integrated in the handle also indicates automatic tripping
of the RCCB. The signal can be acknowledged manually using
the RESET button.
Shunt trips (ST)
Shunt trips are used for the remote tripping of RCCBs.
Undervoltage releases (UR)
Undervoltage releases are integrated (e.g. in EMERGENCY
STOP loops), thus ensuring tripping in the event of an emer-
gency, which, in turn, ensures disconnection of the control circuit
according to EN 60204. In the event that the voltage is inter-
rupted or too low, it also trips, i.e. prevents activation of the
RCCB.
Remote controlled mechanisms are used for the remote ON/OFF
switching of RCCBs. They also enable local manual switching.
A blocking function permits maintenance work. A tripped RCCB
must be acknowledged prior to switching back on.
The leakage current measurement device detects the leakage
currents – like the circuit breaker – thus providing a direct state-
ment as to the current loading of the RCCB. It is used to measure
leakage currents up to 300 mA. This requires a voltmeter with an
internal resistance over 1 MΩ/V and a measuring range for AC
voltages of U
rms
= 1 mV to 2 V. For the fault-free operation of an
RCCB, the measured leakage current should be no greater than
1/3 of the rated residual current.
■
Benefits
Can be universally retrofitted with all additional components
• Captive metal brackets on the additional components ensure
the quick and easy mounting of devices without the need for
tools.
• Fault signal contacts with TEST and RESET button enable
simple testing of auxiliary circuits and, in the event of a fault,
acknowledgement of the fault over the RESET button, without
the need to switch the RCCBs.
• The auxiliary switches with TEST button enable simple manual
testing of control circuits during operation of the entire instal-
lation without the need to switch the RCCBs.
• Bus systems, such as instabus KNX, AS-Interface bus or
PROFIBUS, can be integrated in the communication over
binary inputs
• The leakage current measurement device enables the sys-
tematic selection of the rated residual current, thus preventing
inadvertent tripping of an RCCB.
■
Technical specifications
Auxiliary switches (AS) Auxiliary switches (AS)
5SW330. 5SW3330
Standards EN 62019
Terminals
• Conductor cross-section mm
2
0.75 ... 2.5
• Tightening torque Nm 0.5
Short-circuit protection B6 or C6 or gL/gG 6 A fuse
Min. contact load 50 mA/24 V
Max. contact load
• 230 V AC, AC-12 A 6 5
• 230 V AC, AC-14 A 3.6 --
• 220 V DC, DC-12 A 10.5
PH_04.book Seite 19 Montag, 11. Januar 2016 3:03 15
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