Terminal Blocks Carry 100 kA Short-Circuit Rating August 26, 2008
The 280 Series to 285 Series POWER CAGE CLAMP DIN-rail mount terminal blocks now carry a 100 kA short-circuit current rating (SCCR) when used with appropriate fuses. The SCCR originates from changes enacted by the National Electric Code and is represented as UL508A. According to the company, SCCR ensures proper documentation of the maximum short-circuit current a component, assembly, or equipment can safely withstand when protected by a specific over-current protection device. As an example, a control cabinet’s SCCR is the same as that of a component in the cabinet’s electrical distribution path with the lowest SCCR. For more details, call WAGO CORP., Germantown, WI. (800) 346-7245.
