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UL 1977

3rd Edition, December 1, 2017

Complete Document

UL Standard for Safety Component Connectors for Use in Data, Signal, Control and Power Applications

Includes all amendments and changes through Revision Page(s) , December 1, 2017


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Product Details:

  • Revision: 3rd Edition, December 1, 2017
  • Published Date: December 1, 2017
  • Status: Active, Most Current
  • Document Language: English
  • Published By: UL (UL)
  • Page Count: 29
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

These requirements cover single and multipole connectors, intended for factory assembly to copper or copper alloy conductors or printed wiring boards, for use in data, signal, control and power applications within and between electrical equipment.

These requirements apply to devices categorized as follows (See Figure 1.1). Type designations used in this Standard only serve as a guide to determine appropriate requirements, and do not represent an assigned rating. A device without an assigned current rating is considered to be either a Type 0 or Type 1A depending upon the assigned voltage rating.

a) Type 0 rated less than 8.3 A and less than 30 V rms (42 V peak);

b) Type 1A rated less than 8.3 A and from 30 V up to and including 600 V ac or dc, or both;

c) Type 1B rated from 8.3 A up to and including 200 A, and less than 30 V rms (42 V peak);

d) Type 2 rated from 8.3 A to less than 31 A and from 30 V up to and including 600 V ac or dc or both;

e) Type 3 rated from 31 A up to and including 200 A and from 30 V up to and including 600 V ac or dc, or both;

f) Type 3A rated from 31 A up to and including 200 A and from 601 V up to and including 1,000 V ac or dc, or both;

g) Type 4 rated from greater than 200 A up to and including 1,000 A, and up to and including 600 V ac or dc;

h) Type 4A rated greater than 200 A up to and including 1,000 A, and from 601 V up to and including 1,000 V ac or dc; and

i) Type 5 rated less than 31 A and from 601 V up to and including 6,000 V ac or dc, or both.