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BS EN 60947-7-3:2009

Current

Current

The latest, up-to-date edition.

Low-voltage switchgear and controlgear Ancillary equipment. Safety requirements for fuse terminal blocks

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-01-2010

€271.12
Excluding VAT

INTRODUCTION
1 General
2 Definitions
3 Classification
4 Characteristics
5 Product information
6 Normal service, mounting and transport conditions
7 Constructional and performance requirements
8 Tests
Annex A (normative) - Gauges
Annex B (informative) - Power dissipation values P[V]
        and P[VK]
Annex C (normative) - Order of tests and number of specimens
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

Pertains to fuse terminal blocks with screw-type or screwless-type clamping units for the connection of rigid (solid or stranded) or flexible copper conductors for the reception of cartridge fuse-links in accordance with IEC 60127-2, intended primarily for industrial or similar use in circuits not exceeding 1000 V a.c., up to 1000 Hz or 1500 V d.c., and having a maximum short-circuit breaking capacity of 1500 A.

Committee
PEL/121/1
DevelopmentNote
Supersedes 99/203532 DC (12/2002) To be read in conjunction with BS EN 60947-1 ad BS EN 60947-7-1. Supersedes 06/30157058 DC. (01/2010)
DocumentType
Standard
Pages
42
PublisherName
British Standards Institution
Status
Current
Supersedes

IEC 60947-7-3:2009 applies to fuse terminal blocks with screw-type or screwless-type clamping units for the connection of rigid (solid or stranded) or flexible copper conductors for the reception of cartridge fuse-links in accordance with IEC 60127-2, intended primarily for industrial or similar use in circuits not exceeding 1 000 V a.c., up to 1 000 Hz or 1 500 V d.c., and having a maximum short-circuit breaking capacity of 1 500 A. They are intended for installation in electrical equipment with enclosures which surround the fuse terminal blocks to such an extent that they are accessible only with the aid of a tool. For certain applications, for example in control circuits, the fuse terminal blocks may be designed exclusively for short-circuit protection. The object of this standard is to specify safety requirements and test methods for the mechanical, electrical and thermal characteristics of fuse terminal blocks, to ensure the compatibility between terminal blocks and standardized fuse-links. This standard may be used as a guide for
- fuse terminal blocks requiring the fixing of special devices to the conductors, for example quick connect terminations or wrapped connections, etc.;
- fuse 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. The main technical modifications of this standard since this previous publication are listed below:
- requirements regarding clearances and creepage distances replaced by reference to Annex H of IEC 60947-1;
- requirements for the test of the mechanical strength of the clamping units improved in 8.3.3.1;
- requirements for tightening torques for the tests improved and referenced to Table 4 of IEC 60947-1;
- requirements for the resistance and the dimensions of dummy fuse-links specified in 8.5.2.5.

This publication shall be read in conjunction with IEC 60947-1:2007 and IEC 60947-7-1:2009.

Standards Relationship
DIN EN 60947-7-3 : 2010 Identical
IEC 60947-7-3:2009 Identical
I.S. EN 60947-7-3:2009 Identical
NBN EN 60947-7-3 : 2010 Identical
UNE-EN 60947-7-3:2011 Identical
NF EN 60947-7-3 : 2010 Identical
EN 60947-7-3:2009 Identical

IEC 60364-4-43:2008 Low-voltage electrical installations - Part 4-43: Protection for safety - Protection against overcurrent
EN 60216-1:2013 Electrical insulating materials - Thermal endurance properties - Part 1: Ageing procedures and evaluation of test results
IEC 60127-6:2014 Miniature fuses - Part 6: Fuse-holders for miniature fuse-links
EN 60127-1:2006/A2:2015 MINIATURE FUSES - PART 1: DEFINITIONS FOR MINIATURE FUSES AND GENERAL REQUIREMENTS FOR MINIATURE FUSE-LINKS
ISO 3:1973 Preferred numbers Series of preferred numbers
EN 60127-2:2014 Miniature fuses - Part 2: Cartridge fuse-links
IEC 60947-7-1:2009 Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors
IEC 60127-1:2006+AMD1:2011+AMD2:2015 CSV Miniature fuses - Part 1: Definitions for miniature fuses andgeneral requirements for miniature fuse-links
EN 60947-1:2007/A2:2014 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 1: GENERAL RULES (IEC 60947-1:2007/A2:2014)
IEC 60127-2:2014 Miniature fuses - Part 2: Cartridge fuse-links
IEC 60715:2017 Dimensions of low-voltage switchgear and controlgear - Standardized mounting on rails for mechanical support of switchgear, controlgear and accessories
IEC 61180-2:1994 High-voltage test techniques for low-voltage equipment - Part 2: Test equipment
IEC 60947-1:2007+AMD1:2010+AMD2:2014 CSV Low-voltage switchgear and controlgear - Part 1: General rules
ISO 4046:1978 Paper, board, pulp and related terms — Vocabulary
IEC 61180-1:1992 High-voltage test techniques for low voltage equipment - Part 1: Definitions, test and procedure requirements
EN 60947-7-1:2009 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 7-1: ANCILLARY EQUIPMENT - TERMINAL BLOCKS FOR COPPER CONDUCTORS
IEC 60216-1:2013 Electrical insulating materials - Thermal endurance properties - Part 1: Ageing procedures and evaluation of test results
EN 60695-2-2:1994/A1:1995 FIRE HAZARD TESTING - TEST METHODS - NEEDLE-FLAME TEST

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