Observe The Ul Requirements; Fig. 7 Ul Label On The Cx20Xx - Beckhoff CX2100-0004 Manual

5.2.2

Observe the UL requirements

The Embedded PCs CX20xx and the power supply unit CX2100-0004 are UL508 certified. The
corresponding UL label can be found on the type plate.
Fig. 7: UL label on the CX20xx.
The CX20xx Embedded PCs can thus be used in areas in which special UL requirements have to be met.
UL requirements:
• The Embedded PCs must not be connected to unlimited voltage sources.
• Embedded PCs may only be supplied from a 24 V DC voltage source. The voltage source must be
insulated and protected with a fuse of maximum 4 A (corresponding to UL248).
• Or the power supply must originate from a voltage source that corresponds to NEC class 2. An NEC
class 2 voltage source must not be connected in series or parallel with another NEC class 2 voltage
source.
CX2100-0004 Version: 1.2
Commissioning
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