Siemens SIRIUS 3RU2 - Page 124

Technical data
11.4 3RB30/3RB31 solid-state overload relays
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
124 Manual, 09/2014, A5E03656507420A/RS-AA/002
Type
3RB301., 3RB311.
3RB302., 3RB312.
Size
S00
S0
Width
45 mm
45 mm
ATEX
Suitable for overload protection of explosion-proof motors of
protection type "increased safety" Ex e
• EC type examination certificate number
conforming to Directive 94/9/EC (ATEX)
• Safety data values given below apply for an
ambient temperature of 40 °C.
SIL SIL 1
HFT 0
λ
safe
1 / h 440 × 10
-9
λ
DD
1 / h 105 × 10
-9
λ
DU
1 / h 296 × 10
-9
SFF % 65
DC % 26
MTBF Years 130
PFD
avg (for 36 months)
< 1,0 × 10
-2
Architecture 1001
T1 value (repeat test) DIN EN 60079-17, Section 4.4
T
lifetime
Years 20
Ambient temperatures
• Storage/transport
°C -40 ... +80
• Operation
°C -25 ... +60
• Temperature compensation
°C +60
• Permissible rated operating current
- At internal control
cabinet
temperature 60°C
% 100 100
1)
- 70 °C % On request
Repeat terminals
• Coil repeat terminal
Yes Not required
• Auxiliary switch repeat terminal
Yes Not required
Degree of protection
acc. to IEC 60529 IP20
Touch protection
Finger-safe
Shock resistance with sine
acc. to IEC 60068-2-27
15g / 11 ms
2)