If the power source is a listed Class 2 transformer or listed Class 2 power supply — or it’s in listed equipment marked to identify the Class 2 power source — you’ve got a Class 2 circuit between the ...
Two transformers - models 15951 and 15952 - can be used in many industrial control systems. In addition to fire and burglar alarms, the transformers are ideal for intercom systems, paging systems, ...
Courtesy of www.MikeHolt.com. Based on the 2020 NEC. Class 2 circuits are limited to voltage and current values that don’t (usually) present a shock or fire hazard. The power supply for a Class 2 ...
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