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UL 5085-2 Ed. 2-2021 (2026)

Low Voltage Transformers - Part 2: General Purpose Transformers - Published Date: April 28, 2026

1.1 As noted in Low Voltage Transformers – Part 1: General Requirements, UL 5085-1, or CSA C22.2 No. 66.1, Low Voltage Transformers – Part 1: General Requirements, the requirements of Part 2 cover:  a) Air-cooled transformers and reactors for general use;  b) Autotransformers;  c) Ferroresonant transformers;  d) Cord-connected transformers; and  e) Transformers incorporating overcurrent or over-temperature protective devices, transient voltage surge protectors, or capacitors.  1.7 These requirements do not cover Class 2 and Class 3 transformers (which are evaluated in Part 3).  1.8 Part 2 is intended to be used in conjunction with Part 1. The numbering of the clauses in Part 2 corresponds to the numbered clauses in Part 1. The requirements in Part 1 apply unless modified by Part 2.

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American National Standards Institute [ansi]

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