As part of its remote I/O solution “LB system“, Pepperl+Fuchs offers a power supply for usage in Zone 2, Class I/Div. 2 explosion-hazardous areas. This 24V remote I/O power supply in type of protection Ex nA feeds the I/O modules and com units/gateways that are mounted on the corresponding backplane.
The power supply features galvanic isolation to mains power and can be operated in redundancy mode. Dependent upon quantity and power consumption of the used I/O modules, a third remote I/O power supply in standby operation is needed for redundancy mode.