Siemens SITOP SEL1200 8 x 5 A - Efficiency; Protection and Monitoring; Mtbf

Technical data
6.3 Efficiency
SITOP SEL1200-1400
54 Equipment Manual, 06.2020, A5E46496083-2-76
6.3 Efficiency
6EP4437-7FB00-
3DX0
6EP4437-7EB00-
3DX0
6EP4437-7FB00-
3CX0
6EP4437-7EB00-
3CX0
6EP4438-7FB00-
3DX0
6EP4438-7EB00-
3DX0
Efficiency at
U
out rated
, I
out rated
,
approx.
98 % 98 % 99 % 99 % 99 %
Power loss at
U
out rated
, I
out rated
,
approx.
12 W 15 W 12 W 15 W 15 W
6.4 Protection and monitoring
6EP4437-7FB00-3DX0
6EP4437-7FB00-3CX0
6EP4438-7FB00-3DX0
6EP4437-7EB00-3DX0
6EP4437-7EB00-3CX0
6EP4438-7EB00-3DX0
Device pro-
tection
Internal fuse 10 A for
each output (not acces-
sible)
Internal fuse 20 A for
each output (not acces-
sible)
Internal fuse 8 A for each
output (not accessible)
Internal fuse 15 A for
each output (not acces-
sible)
Operating
display
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 16).
Signaling Group signaling contact (NO contact),
contact rating: 24 V AC/0.1 A; 30 V DC/0.1 A
6.5 MTBF
6EP4437-7FB00-3DX0
6EP4437-7FB00-3CX0
6EP4438-7FB00-3DX0
6EP4437-7EB00-3DX0
6EP4437-7EB00-3CX0
6EP4438-7EB00-3DX0
Mean Time Between Failures > 500,000 hours at 40 °C, rated load,
24 hour operation
> 300,000 hours at 40 °C, rated load,
24 hour operation