Overview
IEC PAS 63324:2020 - Zhaga interface specification Book 1 and Book 10 defines standardized interfaces and conformity requirements for LED Modules, LED Array Holders and luminaires. Book 1 establishes the common concepts and general requirements for Zhaga‑compliant components. Book 10 specifies the detailed mechanical, photometric, electrical and thermal interfaces for LED Modules and Holders and the associated compliance tests and Product Data Set requirements.
Keywords: IEC PAS 63324:2020, Zhaga, LED Module, LED Array Holder, luminaire interface, compliance tests, product data set.
Key topics and technical requirements
- Mechanical interface
- Demarcation of the LED Module area, screw hole requirements, mounting keepouts and optional Locking Ring System (LRS).
- Drawing and dimensional references to ensure interchangeability with luminaire optics.
- Photometric interface
- Definition of the Light Emitting Surface (LES), luminous flux, intensity distribution, luminance uniformity, CCT (Correlated Color Temperature) and CRI (Color Rendering Index) considerations.
- Guidance for photometric interchangeability between modules and luminaire optics.
- Electrical interface
- Interface to the Electronic Control Gear (ECG) and insulation/connector requirements.
- Thermal interface
- Generic thermal interface model, rated operating temperature, thermal overload protection, compatibility checks and guidance on surface planarity/roughness and TIM (Thermal Interface Material).
- Compliance tests and Product Data Set
- Tests for mechanical fit, photometric performance, thermal stabilization, electrical behaviour and data set verification. Annexes provide test tool descriptions, LES measurement guidance and product data requirements.
Applications and who uses this standard
- Luminaire manufacturers and LED module suppliers use IEC PAS 63324:2020 to design interchangeable, modular lighting products that simplify manufacturing, maintenance and upgrades.
- Lighting designers, specifiers and facility managers rely on Zhaga interfaces to select compatible modules and optics for retrofits and new installations.
- Test laboratories and conformity assessors use the compliance test procedures and Product Data Set requirements to verify interoperability and performance.
- OEMs and system integrators benefit when designing modular lighting ecosystems for street, office, retail and architectural lighting where predictable photometric, thermal and electrical behaviour is critical.
Related standards
- This PAS complements other Zhaga interface books and relevant IEC standards for photometry, thermal testing and electrical safety. Follow IEC publication updates for the latest normative references and corrigenda.
For manufacturers and specifiers seeking interchangeability, reliable thermal management, and consistent photometric performance, IEC PAS 63324:2020 is a practical reference for implementing Zhaga‑based modular LED lighting solutions.