Electrical Construction & Maintenance

Article 725, Class 2 and 3 Circuits

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 ...
Electronic Design

Class 2 Transformers

Inherently limited Class 2 Transformers from Foster Transformer are easier to install and operate since they require no external fusing and contain no internal current fuses. Jan. 31, 2012 Inherently ...
Railway Technology

Signal Transformer ST and DST Series Low Power Transformers UL Recognised as Class 2 Models

Various models of Signal Transformer’s ST series and DST Series of high isolation split bobbin low power transformers are recognised by UL as Inherently Limited Class 2 transformers per (UL 5085-3) ...
EDN

Class 2 transformers offer 9 to 24-V output

Available in outputs ranging from 9 to 24 V, a line of Class 2 plug-in transformers offers an input of 120 V at 60 Hz. Current-handling capacities range from 10 to 50 VA. The parts are housed in a ...