Murrelektronik's MICO protective modules for UL508A control cabinets are a proven solution for intelligent power distribution and efficient branch circuit’s protection. Listen to the Automation World ...

Class 2 circuits reclassified and installed as Class 1 circuits are no longer Class 2 circuits, regardless of their continued connection to a Class 2 power source [Sec. 725.130(A) Note]. Class 2 ...

DIN-rail power supplies specialist PULS has introduced two new four-channel versions of its PISA-M Electronic Circuit ...

Using selectivity protection technology to engineer and implement NEC Class 2 control circuits delivers one big benefit: Instead of having to use multiple NEC Class 2-rated power supplies that are ...

Unlike Class 2 and Class 3 power-limited circuits, Class 4 circuits don’t limit power source output. Instead, they constantly monitor for faults and control the delivery of power current ...

NEC Electronics Corp. has announced four models of a new 16-bit microcontroller with on-chip flash memory ("All Flash microcontroller"), with a consumer ...

To verify compliance with NEC requirements, Class 4 circuits must be certified. With Belden’s support, UL recently published UL 1400-2 as an Outline of Investigation (the first step toward a standard) ...

Class 1 and Class 2 circuits installed in ducts or plenums must comply with Sec. 300.22. [Sec. 725.3(C)] Exception No. 1: Class 2 cables selected per Table 725.154 and installed per Sec. 725.135(B) ...