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This report outlines the technical requirements, test procedures, and recent updates for DIN EN 60352-2 (identical to IEC 60352-2 ), which governs solderless crimped connections in electrical and electronic equipment. 1. Scope and Application The standard applies to solderless crimped connections made with: Stranded conductors Solid conductors in diameter. Exclusions : It specifically does apply to the crimping of coaxial cables. iTeh Standards 2. General Requirements The standard ensures that crimped connections remain electrically stable under prescribed mechanical, electrical, and climatic conditions. Key prerequisites include: iTeh Standards Crimp Barrels : Requirements for uninsulated or pre-insulated barrels, with a focus on tensile strength rather than older Vickers hardness metrics. : Changes to surface finishes now favor tin-alloys or nickel over tin-lead to comply with legislation. : Crimping must be performed using tools approved by manufacturers that meet the standard's performance criteria. iTeh Standards 3. Core Test Methods To validate a crimp, several standardized tests are performed: DIN EN IEC 60352-2:2023-03 - Draft
The standard DIN EN 60352-2 (often searched for in its PDF format ) is the definitive guide for engineers and manufacturers working with solderless crimped connections . It provides a standardized framework to ensure that electrical and electronic equipment remains reliable under mechanical stress and varying environmental conditions. Below is a detailed overview of the standard’s scope, technical requirements, and current status. 1. Scope and Application The primary goal of DIN EN 60352-2 is to determine the suitability of crimped connections by evaluating them under specified mechanical, electrical, and atmospheric conditions. Conductor Compatibility: The standard covers stranded wires with a cross-section of 0.05 mm² to 10 mm² and solid wires with a diameter of 0.25 mm to 3.6 mm . Excluded Technologies: Notably, this standard does not apply to the crimping of coaxial cables. Industries: It is widely used in telecommunications, automotive wire harnesses, and industrial electronic devices. 2. Current Editions and Updates As of late 2024 and 2025, the standard has seen significant updates to align with international IEC 60352-2 versions. IEC 60352-2:2024
DIN EN 60352-2 standard is the definitive technical framework for "solderless connections," specifically focusing on crimped connections used in electrical and electronic equipment. It establishes a uniform set of requirements to ensure that these joints are mechanically stable and electrically reliable throughout their service life. iTeh Standards 1. Scope and Core Purpose The primary objective of DIN EN 60352-2 is to define the general requirements, test methods, and practical guidance for crimped connections. While it is widely used across the electronics industry, the standard specifically targets wires with a maximum cross-section of m m squared . For larger industrial or railway applications involving wire sections between 10 m m squared m m squared , engineers typically refer to alternative standards like NF F 61-030. iTeh Standards 2. The Mechanics of a Compliant Crimp A "crimp" is a solderless joint formed by the controlled plastic deformation of a terminal around a conductor. According to the standard: CETEC Systems Material Integrity : The process must avoid damaging the individual strands of the wire or the terminal itself. Consistency : Consistently high-quality results are best achieved by using tools and contacts from the same manufacturer Positioning : Conductors must be stripped correctly and inserted to a specific depth—usually the pin insertion depth plus 1mm or 2mm depending on the cross-section—to ensure a full electrical bond. Phoenix Contact 3. Essential Testing and Quality Criteria To verify a connection, the standard mandates several rigorous testing procedures: Wire stripping in focus - Phoenix Contact
DIN EN 60352-2 is the definitive technical standard for solderless crimped connections used in electrical and electronic equipment . It establishes the general requirements, standardized test methods, and practical guidance needed to ensure that crimped connections remain electrically stable and mechanically secure throughout their service life. Scope and Applicability The standard covers connections made with uninsulated or pre-insulated crimp barrels and applies specifically to: Stranded wires: Cross-sections ranging from 0.05 mm2m m squared mm2m m squared . Solid wires: Diameters ranging from 0.25 mm to 3.6 mm . Note that this standard specifically excludes the crimping of coaxial cables. For wire sections exceeding 10 mm2m m squared mm2m m squared ), industry professionals often refer to alternative standards like NF F 61-030 . Key Requirements of DIN EN 60352-2 The standard ensures reliability by defining strict parameters for the crimping process: Mechanical Integrity: It specifies the necessary pull-out force (tensile strength) that a connection must withstand to prevent accidental detachment. Electrical Stability: Requirements include maximum allowable contact resistance and specific test currents to ensure efficient power or signal transmission without overheating. Environmental Durability: Connections are tested against atmospheric conditions, including temperature rapid changes, dry heat, and damp heat, to simulate long-term field use. Workmanship: The standard provides guidance on wire preparation (cutting and stripping) and the selection of appropriate crimping tools and barrel materials. Testing Schedules To verify compliance, DIN EN 60352-2 outlines two primary testing paths: Basic Test Schedule: Focuses on standard copper or copper alloy materials. It primarily involves pull-out force tests and current loading cycles on a set number of samples. Full Test Schedule: Required for "exotic" materials like nickel, steel, or stainless steel. This schedule is more rigorous, including up to 500 current loading cycles and extensive climatic testing to ensure stability in harsh environments. EN IEC 60352-2:2024 - Crimped connections - iTeh Standards din en 60352-2 pdf
DIN EN 60352-2 — Overview and detailed discourse What the standard covers DIN EN 60352-2 (equivalent to IEC 60352-2) is an international/European standard that specifies methods for making and testing permanent electrical connections by soldering — specifically it addresses soldered connections for electrical and electronic assemblies. Part 2 focuses on test methods and requirements for soldered joints (as opposed to general application rules, which may appear in other parts or related standards). The standard defines the mechanical and electrical performance criteria, test procedures, specimen preparation, environmental and mechanical conditioning, and acceptance limits used to verify the reliability of soldered joints. Scope and intended use
Applies to soldered connections used in electronic equipment and electrical apparatus where permanent joints are required. Intended for manufacturers, quality engineers, test labs, and designers who need standardized test methods to qualify solder processes, assembly techniques, and joint designs. Useful for process control, failure analysis, supplier qualification, and conformance testing in production and development environments.
Key technical topics addressed
Terminology and definition of soldered joint types (e.g., through-hole, surface-mount, wire-to-terminal). Test specimen types and preparation: how to make representative specimens (board layout, component mounting, solder alloy, flux type, pre-treatment). Soldering process parameters that may influence results (temperature profiles, wave/hand/reflow/irons, time above liquidus). Mechanical tests: tensile, shear, bending, and peel tests for various joint geometries, with defined test fixtures, speeds, and failure criteria. Electrical tests: continuity, contact resistance, and tests after environmental stressors. Environmental conditioning: thermal cycling, damp heat (humidity), salt spray (where applicable), and thermal shock procedures to evaluate durability under real-world stress. Metallurgical examination: cross-sectioning, intermetallic compound (IMC) thickness measurement, and detection of voids, cracks, wetting defects, and incomplete fillets. Acceptance criteria: minimum mechanical strengths, allowable resistance changes, visual quality classes, and metallurgical limits (e.g., acceptable IMC growth). Statistical sampling and reporting: how to document test setups, specimen counts, measured values, and conformity decisions.
Typical test methods described
Visual inspection standards and definition of unacceptable defects (e.g., insufficient wetting, solder bridges). Shear testing of component leads or terminations: fixture design, applied force direction, and pass/fail thresholds. Pull (tensile) testing of mounted components or wires: single-lug pull tests with specified pull speed and required minimum force. Peel tests, particularly for surface-mounted component terminations and wire-to-board joints. Thermal cycling: number of cycles, dwell times, and temperature extremes to simulate aging and thermal stress. Humidity/damp heat exposure followed by electrical and mechanical checks. Solderability tests: preconditioning of leads and pads and subsequent solderability evaluation to ensure proper wetting when soldered. Exclusions : It specifically does apply to the
Why it matters in industry
Standardized tests enable consistent qualification across suppliers and manufacturers, reducing field failures. Helps select suitable solder alloys, fluxes, and process parameters for long-term reliability. Supports regulatory/compliance requirements in sectors with high reliability demands (automotive, aerospace, medical, industrial control). Provides forensic methods to determine root causes when a soldered joint fails in service.
