UL 60947-7-2-2017 UL Standard for Safety Low-Voltage Switchgear and Controlgear – Part 7-2: Ancillary Equipment – Protective Conductor Terminal Blocks for Copper Conductors (Fourth Edition)
This part of IEC 60947 specifies requirements for protective conductor terminal blocks with PE function up to 120 mm2 (250 kcmil) and for protective conductor terminal blocks with PEN function equal to and above 10 mm2 (AWG 8) with screw-type or screwless-type clamping units@ primarily intended for industrial applications. NOTE: AWG is the abbreviation of ??American Wire Gage?? [Gage (US) = Gauge (UK)] kcmil = 1000 cmil 1 cmil = 1 circular mil = surface of a circle having a diameter of 1 mil 1 mil = 1/1000 inch Protective conductor terminal blocks are used to form the electrical and mechanical connection between copper conductors and the fixing support. lt is applicable to protective conductor terminal blocks for the connection of round copper conductors with or without special preparation having a cross-section between 0@2 mm2 and 120 mm2 (AWG 24 and 250 kcmil)@ intended to be used in circuits of a rated voltage not exceeding 1 000 V a.c. up to 1 000 Hz or 1 500 V d.c.@ most commonly in conjunction with terminal blocks according to IEC 60947-7-1. Modification of Clause 1.1: Replace ??0@2 mm2 and 120 mm2 (AWG 24 and 250 kcmil)?? with ??0@1 mm2 and 120 mm2 (AWG 30 and 250 kcmil)??. Modification by adding the following: This standard applies to insulation displacement terminals. DR Modification by adding the following: Terminal blocks with PEN function are not permitted. This standard may be used as guide for ?C protective conductor terminal blocks requiring the fixing of special devices to the conductors@ for example quick connect terminations or wrapped connections@ etc.; ?C protective conductor terminal blocks providing direct contact to the conductors by means of edges or points penetrating the insulation@ for example insulation displacement connections@ etc. Where applicable in this standard@ the term ??clamping unit?? has been used instead of the term ??terminal??. This is taken into account in case of reference to IEC 60947-1. Modification by adding the following: This standard also applies to terminal blocks that have insulation piercing or displacement clamping units. Modification by adding the following: This standard specifies requirements for protective conductor terminal blocks with PE function up to 120 mm2 (250 kcmil) and for protective conductor terminal blocks with PEN function equal to and above 10 mm2 (AWG 8) with screw-type or screwless-type clamping units@ primarily intended for industrial applications@ in accordance with Annex DVB of item 1 in Annex DVA@ National Electrical Code@ NFPA 70 (for use in the USA)@ CSA C22.1-15 Canadian Electrical Code@ Part I (for use in Canada)@ or NOM-001-SEDE@ Electrical Installations (Utility) [for use in Mexico].
UL 60947-7-2-2017 history
1970UL 60947-7-2-2021 UL Standard for Safety Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductors
2017UL 60947-7-2 (ND)-2017 National Differences For Low-Voltage Switchgear and Controlgear – Part 7-2: Ancillary Equipment – Protective Conductor Terminal Blocks for Copper Conductors (Fourth Edition)
2017UL 60947-7-2-2017 UL Standard for Safety Low-Voltage Switchgear and Controlgear – Part 7-2: Ancillary Equipment – Protective Conductor Terminal Blocks for Copper Conductors (Fourth Edition)
2014UL 60947-7-2 BULLETIN-2014 UL Standard for Safety Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductors (COMMENTS DUE: December 1@ 2014)
2011UL 60947-7-2 (ND)-2011 National Differences For UL 60947-7-2 Low-Voltage Switchgear and Controlgear - Part 7-2: Ancillary Equipment - Protective Conductor Terminal Blocks for Copper Conductors (Third Edition; Reprint with Revisions Through and Including October 14, 2011)
2011UL 60947-7-2-2011 UL Standard for Safety Low-Voltage Switchgear and Controlgear – Part 7-2: Ancillary Equipment – Protective Conductor Terminal Blocks for Copper Conductors (Third Edition)
2010UL 60947-7-2 BULLETIN-2010 UL Standard for Safety Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductors (COMMENTS DUE: April 26@ 2010)
2009UL 60947-7-2 BULLETIN-2009 UL Standard for Safety Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductors (COMMENTS DUE: September 21@ 2009)
2004UL 60947-7-2 BULLETIN-2004 UL Standard for Safety Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductors
2004UL 60947-7-2 (ND)-2004 National Differences For UL 60947-7-2 Standard for Low-Voltage Switchgear and Controlgear - Part 7-2: Ancillary Equipment - Protective Conductor Terminal Blocks for Copper Conductors (Second Edition)
2004UL 60947-7-2-2004 UL Standard for Safety Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductors Second Edition