Siemens SCALANCE MUM853-1 User Manual

NOTICE
Suitable fuse for the power supply cables (corresponds to "Limited Energy")
The
current on the terminal may not exceed 3 A. Use a fuse for the power supply that is suitable
for protection of AC/DC power supply circuits *
)
and protects against currents > 3A.
• In areas subject to the NEC or CEC, the fuse must meet the following requirements:
– Suitable for AC/DC *
)
(min. 60V / 3A)
– Breaking current at least 10 kA
– Approval according to ANSI/UL 248-14 (suppl. fuses), ANSI/UL 248-4 (Class CC), ANSI/UL
248-8 (J), ANSI/UL 248-15 (T), or CSA C22.2-4 No. 248.14 (suppl. fuses), No. 248-4
(Class CC), No. 248-8 (J), No. 248-15 (T)
• In other areas, the fuse must meet the following requirements:
– Suitable for AC/DC *
)
(min. 60V / 3A)
– Breaking current at least 10 kA
– Approval according to IEC/EN 60947‑1/2/3 or IEC/EN 60898-1/2 for circuit breakers
– Breaking characteristics: B or C
– Approval according to IEC/EN60127-1 for fuses
– Breaking characteristics: max. 120 s at 2 x I
n
(corresponds to melting integral I
2
t < 4320)
If the properties of the supplying current source are known, the following fuse is also possible:
• In areas subject to the NEC or CEC, the fuse must meet the following requirements:
– Suitable for AC/DC *
)
(min. 60V / 3A)
– Breaking current > highest possible current of the current source (incl. short circuit
current and fault)
– Approval according to UL 1077 or CSA C22.2 No. 235
• In other areas, the fuse must meet the following requirements:
– Suitable for AC/DC *
)
(min. 60V / 3A)
– Breaking current > highest possible current of the current source (incl. short circuit
current and fault)
– Approval according to IEC/EN 60934
– Breaking characteristics: max. 120s at 2 x I
n
*
)
AC or DC depending on availability
Safety notices on use in hazardous areas
Gener
al safety notices relating to protection against explosion
WARNING
EXPLOSION HAZARD
Do
not connect or disconnect cables to or from the device when a 󹪞ammable or combustible
atmosphere is present.
Connection
6.1Safety when connecting up
SCALANCE MUM853-1
Operating Instructions, 03/2023, C79000-G8976-C650-05 47

Siemens SCALANCE MUM853-1 Specifications

General

Brand	Siemens
Model	SCALANCE MUM853-1
Category	Network Router
Language	English