Efficiency; Protection And Monitoring; Mtbf - Siemens SITOP SEL1200 Manual

Technical data

6.3 Efficiency

6.3 Efficiency
Efficiency at U , I
out rated out rated
Power loss at U , I
out rated out rated
6.4

Protection and monitoring

Device protection
Operating display
Signaling
6.5

MTBF

Mean Time Between Failures
40
6EP4438-7FB00-3DX0
6EP4438-7EB00-3DX0
, approx. 99 %
, approx. 15 W
6EP4438-7FB00-3DX0
6EP4438-7EB00-3DX0
Internal fuse 10 A for each output (not accessible)
One LED per output: LED green for "Output switched on", LED orange flashing
for "Output manually switched off", LED red for "Output switched off due to
overload or overvoltage", all LEDs flashing red for "Device overload (total max.
output current exceeded)", red running light for "Device overtemperature".
More detailed information is provided in Chapter "Status displays and signaling
(Page 13)".
Group signaling contact (NO contact),
contact rating: 24 V AC/0.1 A; 30 V DC/0.1 A
6EP4438-7FB00-3DX0
> 500,000 hours at 40 °C, rated load,
24 hour operation
6EP4438-7EB00-3DX0
> 300,000 hours at 40 °C, rated load,
24 hour operation
SITOP SEL1200-1400
Manual, 06.2019, A5E46496083-1-76