Indian Standards for Enclosures & Fasteners — IS 2147, IS 12063, IS 1367 & More

The complete BIS reference — the key mandatory and referenced Indian Standards for electrical enclosures and fasteners, what the ISI Mark means, and how these align with international IEC and ISO standards.

IS 12063 — Degree of Protection for Electrical Enclosures

IS 12063 is India's national standard for IP (Ingress Protection) classification of enclosures, harmonised with the international standard IEC 60529. It defines exactly what an IP54, IP65 or IP66 rating means and how it must be tested — see our full IP ratings guide for a breakdown of every digit.

IS 2147 — Degree of Protection for Switchgear and Controlgear Enclosures

IS 2147 covers degree-of-protection requirements specifically for enclosures housing low-voltage switchgear and controlgear — the panels and boards that distribute and control electrical power. It works alongside the general IP framework in IS 12063 to set expectations specific to switchgear applications.

IS 1367 — Technical Supply Conditions for Threaded Steel Fasteners

IS 1367 is a multi-part standard covering the technical supply conditions for threaded steel fasteners in India, aligned with the international ISO 898 series for mechanical properties. It's the standard behind the familiar property grade markings (4.6, 8.8, 10.9, 12.9) discussed in our fastener guide.

How Indian Standards Relate to IEC and ISO

Many Indian Standards relevant to enclosures and fasteners are deliberately harmonised with their international counterparts — IS 12063 with IEC 60529, and IS 1367 with ISO 898 — rather than being entirely India-specific systems. This means equipment designed to meet these IS standards is generally consistent with what's expected in export markets as well, which matters for manufacturers and panel builders supplying beyond India.

Why the ISI Mark Matters

The ISI Mark, issued by the Bureau of Indian Standards (BIS), indicates that a product has been certified as meeting the relevant Indian Standard through BIS's certification scheme. For enclosures and fasteners used in regulated or safety-critical installations, specifying ISI-marked components (where a scheme applies to that product category) is a straightforward way to build compliance into a project from the start, rather than needing to verify it later.