SIEMENS
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Siemens IC 10 · 2017
Power Contactors for Switching Motors
SIRIUS 3RT contactors, 3-pole up to 250 kW
3
Type
3RT1054
3RT1055,
3RT1056
3RT1064,
3RT1065,
3RT1066
3RT1075
3RT1076
Size
S6
S10
S12
General data
Dimensions (W x H x D)
• Basic unit
mm
120 x 172 x 170
145 x 210 x 202
160 x 214 x 225
• Basic unit with mounted auxiliary switch block
mm
120 x 172 x 217
145 x 210 x 251
160 x 214 x 271
Permissible mounting position
The contactors are designed for operation on a vertical
mounting surface.
Mechanical endurance
Operat-
ing
cycles
10 million
Electrical endurance
For contact endurance of the main contacts,
see page 3/22
.
Rated insulation voltage
U
i
(pollution degree 3)
V
1 000
Rated impulse withstand voltage
U
imp
kV
8
Protective separation
between the coil and the main contacts
according to IEC 60947-1, Appendix N
V
690
Mirror contacts
A mirror contact is an auxiliary NC contact that cannot be
closed simultaneously with an NO main contact.
Yes, acc. to IEC 60947-4-1, Appendix F
Permissible
ambient temperature
• During operation
°C
-25 ... +60
• During storage
°C
-55 ... +80
Degree of protection
acc. to IEC 60529
• On the front
IP00
(IP20 with box terminal/cover)
• Connecting terminal
IP00
(for higher degree of protection, use additional terminal covers)
Touch protection
acc. to IEC 60529
Finger-safe for vertical touching from the front with cover
Shock resistance
• Rectangular pulse
g
/ms
8.5/5 and 4.2/10
• Sine pulse
g
/ms
13.4/5 and 6.5/10
Electromagnetic compatibility (EMC)
See page 3/17
Short-circuit protection
Main circuit
Fuse links, operational class gG:
LV HRC, type 3NA; DIAZED, type 5SB; NEOZED, type 5SE
acc. to IEC 60947-4-1/EN 60947-4-1
• Type of coordination "1"
A
355
500
630
• Type of coordination "2"
A
315
400
500
• Weld-free
A
80
160
250
315
Auxiliary circuit
Short-circuit test
• With fuse links of operational class gG:
DIAZED, type 5SB; NEOZED, type 5SE
with short-circuit current
I
k
= 1 kA acc. to IEC 60947-5-1
A
10
• with miniature circuit breaker with C characteristic
with short-circuit current
I
k
= 400 A
A
10
Short-circuit protection for contactors with overload relays
See Configuration Manual "Configuring SIRIUS –
Selection Data for Fuseless Load Feeders",
~
o
k
NSB0_00649a
22,5° 22,5°
90°
90°
© Siemens AG 2016