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BCD20021-G Rev AF, 29 November 2021
Page 18 of 26
X Series
375, 500 Watt AC-DC and DC-DC DIN-Rail Converters
© 2021 Bel Power Solutions & Protection
10073
10072
Fig. 15a
Snap-fit mounting to DIN-Rail.
Fig. 15b
Dismounting from DIN-rail. Use proper tool
(min. 3 mm screwdriver) and adequate force.
1
2
3
10074
Fig. 16
Cage clamp terminals. Use 0.5 to 2.5 mm
2
(AWG 20 to 12) solid or stranded wires depending on local requirements.
External fuses in the wiring to one or both input line (L
~
and/or N
~
) may be necessary to ensure compliance with local requirements.
A built-in second fuse in the neutral path is available as option F.
A second fuse in the wiring to the neutral terminal N or option F is needed if:
• Local requirements demand an individual fuse in each source line
• Neutral and earth impedance is high or undefined
• Phase and neutral of the mains are not defined or cannot be assigned to the corresponding terminals (L
~
to phase and N
~
to
neutral).
Models with option F: Caution! Double-pole/neutral fusing.
If the converter operates at source voltages above 250 VDC, an external DC fuse or a circuit breaker at system level should be
installed in the phase input line L
~
.
Caution:
• Installation must strictly follow the national safety regulations.
• Do not open this apparatus!
Protection Degree and Cleaning Agents
The protection degree of the converters is IP 20. Protective covers over input and output terminals are available on request; see
Accessories
.
Any penetration of liquid or foreign solid objects has to be prevented, since the converters are not hermetically sealed.