IEC 60947-7-4:2013 pdf download.Low-voltage switchgear and controlgear
1.1 Scope
This part of IEC 60947 specifies requirements for PCB terminal blocks primarily intended for industrial or similar use.
Mounting and fixing on the printed circuit board is made by soldering, press-in or equivalent methods to provide electrical and mechanical connection between copper conductors and the printed circuit board.
This standard applies to PCB terminal blocks intended to connect copper conductors, with or without special preparation, having a cross-section between 0,05 mm2 and 300 mm2 (AWG 30/600 kcmil), intended to be used in circuits of a rated voltage not exceeding 1 000 V a.c. up to 1000 Hz or 1500 V d.c.
1.2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references， the latest edition of the referenced document (including any amendments) applies.
IEC 60068-2-20，Environmental testing - Part 2-20: Tests - Test T: Test methods for solderability and resistance to soldering heat of devices with leads
IEC 60352-1, Solderless connections - Part 1: Wrapped connections - General requirements,test methods and practical guidance
IEC 60352-2, Solderless connections - Part 2: Crimped connections一General requirements,test methods and practical guidance
IEC 60352-3, Solderless connections - Part 3: Solderless accessible insulation displacement ;connections一General requirements, test methods and practical guidance
IEC 60352-4，Solderless connections - Part 4: Solderless non-accessible insulation displacement connections一General requirements, test methods and practical guidance
IEC 60352-5, Solderless connections - Part 5: Press-in connections - General requirements,test methods and practical guidance
IEC 60352-6，Solderless connections 一Part 6: Insulation piercing connections 一General requirements, test methods and practical guidance
IEC 60352-7，Solderless connections 一Part 7: Spring clamp connections - General requirements, test methods and practical guidance
IEC 60512-2-1, Connectors for electronic equipment一Tests and measurements一Part 2-1: Electrical continuity and contact resistance tests - Test 2a: Contact resistance - Millivolt level method
IEC 60512-4-1, Connectors for electronic equipment - Tests and measurements - Part 4-1: Voltage stress tests - Test 4a: Voltage proof
IEC 60512- 5-2，Connectors for electronic equipment一Tests and measurements - Part 5-2: Current-carrying capacity tests - Test 5b: Current-temperature derating
IEC 60512-11-7, Connectors for electronic equipment - Tests and measurements - Part 11-7: Climatic tests - Test 11g: Flowing mixed gas corrosion test
IEC 60512-11-9, Connectors for electronic equipment一Tests and measurements一Part 11-9: Climatic tests- Test 11i: Dry heat
IEC 60695-2-11, Fire hazard testing 一Part 2-11: Glowing/hot-wire based test methods一Glow-wire flammability test method for end-products
IEC 60695-2-12, Fire hazard testing - Part 2-12: Glowing/hot-wire based test methods - Glow- wire flammability index (GWFI) test method for materials
IEC 60695-2-13, Fire hazard testing - Part 2- 13: Glowing/hot-wire based test methods - Glow-wire ignition temperature (G WIT) test method for materials
IEC 60947-1:2007, Low-voltage switchgear and controlgear - Part 1: General rules Amendment 1: 2010
IEC 60998-2-3，Connecting devices for low-voltage circuits for household and similar purposes - Part 2-3: Particular requirements for connecting devices as separate entities with insulation-piercing clamping units.IEC 60947-7-4 pdf download.