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
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The National differences and Group differences, National Deviations and Special National conditions (SNC), are based solely on information provided to the Secretariat by the IECEE Member Bodies and/or NCBs and other sources. The IEC/IECEE is not responsible for, nor will it take any position related to, the accuracy or validity of the information provided. To verify the current status of this type of information, we recommend contacting the Member Body (MB) or National Certification Body (NCB) of the relevant country.
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