IEC PAS 63329:2020

Overview

IEC PAS 63329:2020 - “Zhaga interface specification Book 1 and Book 14” is a publicly available IEC specification that defines common concepts, general requirements and a set of standardized interfaces for socketable rectangular LED Modules and LED Light Engines (LLEs).

• Book 1 provides the common concepts, terminology and general requirements for Zhaga‑compliant LED luminaire components.
• Book 14 specifies three socketable LED Light Engines (with integrated Electronic Control Gears - ECGs) and three socketable LED Modules (without ECGs). These components are intended for general lighting, are rectangular in form factor, and are designed to be installed or replaced by professionals and non‑professionals.

Key Topics

The specification is organized to enable interoperability and reliable compliance testing. Major technical topics include:

• Mechanical interface - drawing principles, dimensioning, caps and holders, retention and keying to ensure physical interchangeability.
• Photometric interface - definition of Light Emitting Surface (LES), luminous flux, luminous intensity distribution, luminance uniformity, correlated color temperature (CCT) and color rendering (CRI).
• Electrical interface - nominal input current and forward voltage ranges, insulation and hot‑plugging considerations; separate requirements for LED Modules vs. LLEs (mains powered).
• Thermal interface - thermal management boundary conditions between module/LLE and luminaire.
• Control interface - optional dimming and control functionality and related test methods.
• Compliance test tools and tests - mechanical gauges, PETF (photometric and electrical test fixture), and detailed compliance test procedures for modules, LLEs and luminaires including mechanical, photometric, electrical, thermal and control tests.
• Product Data Set - standardized data requirements for product information and certification support.
• Compatibility & interchangeability - guidance on certification, market surveillance and compatibility checks.

Applications

IEC PAS 63329 is practical for:

• LED module and LLE manufacturers who need to design socketable, rectangular products that are interoperable across luminaire families.
• Luminaire OEMs and designers seeking modular components for easier assembly, maintenance and aftermarket upgrades.
• Testing labs and certification bodies that perform mechanical, photometric, electrical and thermal compliance testing.
• Specifiers, facility managers and installers evaluating products for replaceability, safety and long‑term maintenance.
  Benefits include improved interchangeability, reduced product development time, and clearer product data for procurement and maintenance.

Related Standards (if applicable)

• Zhaga interface family and other Zhaga Books (refer to Zhaga organization).
• IEC technical publications covering LED lighting safety, EMC and photometry (see IEC catalogue for related normative references).

Keywords: IEC PAS 63329, Zhaga Book 14, Zhaga Book 1, LED Light Engine, LED Module, socketable LED, interface specification, photometric interface, electrical interface, thermal management, product data set, compliance testing.