How is the UL standard of the sensor of the DC power system treated?

It is not necessary to use the UL standard certificated models in this case.

Please use the power supply certificated to the class 2 complying with the UL1310.

When you need to use the UL standard certificated sensors of the DC power system, Omron can provide the sensors that is certificated with the UL standards under the condition of "using in class 2 circuits".

Omron can provide the sensors with the UL standards certificated name-plate that is shown under the conditions of using in class 2 circuit.