Siemens 3RB30 Safety And Commissioning Instructions page 4

2.5 User test (device test)
The tests according to EN 60079-17 can be carried out together with
the user test. The device must be taken out of operation if the test
results are negative.
CAUTION
!
This test must be carried out by a specialist familiar with the
standards stated!
Initialization
• The three phase currents running through the 3RB3 must be as
symmetrical as possible.
• The phase currents must be ≥ 80 % of the set current I
• The currents must flow at least for the time t
• The phase currents must be at least the same size as the value for
the lower setting mark of the current setting.
CLASS 5E
t [minutes] 3
1
Test implementation
During the test all the protective functions are still active. The test is
initiated by pressing the TEST button (see device test in operating
instructions).
After the TEST button has been pressed, the device must trip within the
following time periods:
CLASS CLASS
Max. phase
5E 10E
% of I
[s] max. [s] max.
e
100 % 8 15
90 % 16 31
80 % 31 61
Test evaluation
The user test is considered to be carried out successfully if:
• the device trips within the maximum permissible time limit and
• contact 95-96 has opened (not welded shut).
NOTICE
Correct functioning of the device can only be guaranteed when
these two criteria are met.
2.6 Additional safety instructions
CAUTION
3RB30 and 3RB31 are not designed for load-side operation on
frequency converters.
2.7 Environmental conditions
Permissible ambient temperature range:
• Storage / transport: –40 °C to +80 °C
• Operation: –25 °C to +60 °C
4
.
e
before the test.
1
10E 20E 30E
5 10 15
CLASS CLASS
20E 30E
[s] max. [s] max.
29 43
61 92
122 183
3. Safety data
Values in the safety and
commissioning instructions for
40 °C ambient temperature
plus 10 K due to self-heating
SIL SIL 1
HFT 0
λ
safe
440 * 10
λ
DD
105 * 10
λ
DU
296 * 10
SFF 65%
DC 26%
MTBF 130 years
PFD
< 1,0 * 10
avg (for 36 months)
Architecture 1001
T1 value DIN EN 60079-17 Section 4.4
(repeat test)
T 20 years
lifetime
4. Maintenance and repair
This device is maintenance-free.
5. Warranty
To meet the conditions of the warranty, you must observe the safety
and commissioning instructions and the operating instructions
3ZX1012-0RB30-1AA1 (S00/S0)
3ZX1012-0RB30-3AA1 (S2).
6. Further information
Further information about the 3RB30 / 3RB31 can be found in Siemens
Industrial Controls Catalog IC 10 or on the Internet:
http://support.automation.siemens.com
-9
1/h
-9
1/h
-9
1/h
-2
3ZX1012-0RB30-1CA1