Efficiency; Protection And Monitoring; Mtbf - Siemens SITOP SEL1200 8 x 5 A Equipment Manual

Technical data

6.3 Efficiency

6.3 Efficiency
6EP4437-7FB00-
3DX0
Efficiency at 98 %
U , I ,
out rated out rated
approx.
Power loss at 12 W
U , I ,
out rated out rated
approx.
6.4

Protection and monitoring

6EP4437-7FB00-3DX0
Device pro- Internal fuse 10 A for
tection each output (not acces-
sible)
Operating One LED per output: LED green for "Output switched on", LED orange flashing for "Output manually
display 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 16).
Signaling Group signaling contact (NO contact),
contact rating: 24 V AC/0.1 A; 30 V DC/0.1 A
6.5

MTBF

Mean Time Between Failures > 500,000 hours at 40 °C, rated load,
54
6EP4437-7EB00-
3DX0
98 %
15 W
6EP4437-7FB00-3CX0
6EP4438-7FB00-3DX0
Internal fuse 20 A for
each output (not acces-
sible)
6EP4437-7FB00-3DX0
6EP4437-7FB00-3CX0
6EP4438-7FB00-3DX0
6EP4437-7EB00-3DX0
6EP4437-7EB00-3CX0
24 hour operation
6EP4437-7FB00- 6EP4437-7EB00-
3CX0 3CX0
99 % 99 %
12 W 15 W
6EP4437-7EB00-3DX0
Internal fuse 8 A for each
output (not accessible)
6EP4438-7EB00-3DX0
> 300,000 hours at 40 °C, rated load,
24 hour operation
Equipment Manual, 06.2020, A5E46496083-2-76
6EP4438-7FB00-
3DX0
6EP4438-7EB00-
3DX0
99 %
15 W
6EP4437-7EB00-3CX0
6EP4438-7EB00-3DX0
Internal fuse 15 A for
each output (not acces-
sible)
SITOP SEL1200-1400