Manualshelf

Datasheet

ManualsBrandsSiemens ManualsCircuit BreakersPower Switch 3.5 ... 5A
12345678910
3RV Motor Starter Protectors/Circuit Breakers up to 100 A
General data
6
Siemens ยท 2010
3RV16 voltage transformer circuit breakers up to 3 A
The voltage transformer circuit breaker widely corresponds with
the SIRIUS 3RV1 motor starter protector, size S00. Two special
features are taken into account for safe prevention of false trip-
ping of the distance protection device.
Auxiliary switch for blocking the distance protection
The main contacts of the circuit breaker are opened if the vol-
tage transformer circuit breaker is tripped or switched off. The
distance protection would falsely interpret low impedance as a
fault, which results in immediate power disconnection within only
a few milliseconds.
To prevent this false tripping, special auxiliary contacts with a
time-dependent assignment to the circuit breaker's main con-
tacts (see timing diagram) must be provided. The distance pro-
tection is blocked with the help of these auxiliary contacts and
thus prevents false tripping.
An auxiliary switch for blocking the distance protection device is
available as 1 changeover contact fitted permanently in the
voltage transformer circuit breaker. This changeover contact
can be used as 1 NO (11-14) or 1 NC (11-12). Thanks to the
high contact stability of these auxiliary contacts at the lowest
possible rated operational currents, they are also suitable for
modern solid-state distance protection devices.
The laterally mounted auxiliary switches of the SIRIUS range can
be used for signaling purposes. They cannot be used for blo-
cking the distance protection device.
Impedance across the main contacts
There is only minor current flow across the main contacts of the
voltage transformer circuit breaker.
To ensure reliable functioning of the distance protection, transfer
resistance of the main contacts must be minimal and nearly con-
stant throughout the endurance of the circuit breaker.
This is implemented with suitable contacts and contact materials
for the 3RV16 voltage transformer circuit breaker.
Timing diagram of auxiliary switches for blocking distance protection
Installation guidelines for motor starter protectors/circuit breakers
When mounting the motor starter protectors, the following clea-
rances must be maintained to grounded or live parts and to ca-
ble ducts made of molded plastic.
Installation guidelines for motor starter protectors/circuit breakers with limiter function
0 J
+20
+20
1
0
0
-10
-10
0
1
0
5
0
1
5
NSB0_01098c
(ms) J (ms) J (ms)
ON Tripping due to short-circuit
M a i n C o n t a c t s
1 NO 11-14
1 NC 11-12
(1 changeover contact)
OFF
Motor starter protectors/circuit
breakers
Distance to grounded or live parts and to molded-plastic cable ducts acc. to IEC 60947-2
Type Size U
e
V
Y
mm
X
mm
Z
mm
3RV1. 1,
3RV16 1.
S00 Up to 690 20 70 9
3RV1. 2,
3RV17 21,
3RV18 21
S0 Up to 500
Up to 690
30
50
90
90
9
30
3RV1. 3 S2 Up to 690 50 140 10
3RV1. 4 S3 Up to 240
Up to 440
Up to 500
Up to 690
50
70
110
150
167
167
167
167
10
10
10
30
3RV17 42 S3 Up to 240
Up to 400
90
90
167
167
10
10
Motor starter protectors/circuit
breakers
Distance to grounded or live parts and to molded-plastic cable ducts acc. to IEC 60947-2
Type Size U
e
V
Y
mm
X
mm
Z
mm
3RV1. 2 S0 Up to 500
Up to 690
40
50
90
90
10
30
3RV1. 3 S2 Up to 690 50 140 10
3RV1. 4 S3 Up to 500
Up to 690
110
150
167
167
10
30
X
NSB0_01304d
Z
Z
Y
Y
3RV1. ..
3RV1. ..
3RV1. ..
1L1
3L2
5L3
2T1
4T2
6T3
1L1
3L2
5L3
2T1
4T2
6T3