EN81 vs IS Standards — What Builders Must Know Before Specifying an Elevator
Indian builders often face confusion between EN81 and IS codes for elevator specification. This article explains the key differences, what EN81 compliance means, and why it matters for your project.
Sanyo ISquare Engineering Team
10 August 2025 · 5 min read
When specifying elevators for a new apartment project, builders in South India frequently encounter two competing sets of standards: EN81 (European Norm 81) and IS 14665 (Indian Standards for lifts). Understanding the difference — and knowing which one your elevator actually meets — is not just a compliance matter. It is a safety, liability, and long-term maintenance question.
What is EN81?
EN81 is the European standard for the safety rules for the construction and installation of lifts. It is published by the European Committee for Standardization (CEN) and is mandatory for all elevators installed and sold in Europe.
The standard has evolved significantly:
- EN81-1 and EN81-2 — Legacy standards for traction and hydraulic lifts
- EN81-20 — Current safety standard for passenger and goods lifts (traction, hydraulic, rack and pinion)
- EN81-50 — Safety component testing and examination rules
- EN81-58 — Fire resistance for landing door assemblies
EN81-20/50 (the current generation) is substantially more rigorous than its predecessor. It tightens requirements for rope factor of safety, door system performance, safety gear response times, and drive system fail-safes such as STO (Safe Torque Off).
What is IS 14665?
IS 14665 is India's national standard for lifts, maintained by the Bureau of Indian Standards (BIS). It covers passenger lifts, goods lifts, service lifts, and dumbwaiters.
While IS 14665 provides an adequate baseline for basic lift safety, it lags behind EN81-20/50 in several critical areas:
| Parameter | EN81-20/50 | IS 14665 |
|---|---|---|
| Rope factor of safety | Minimum 12:1 (IWRC) | 12:1 (fiber core acceptable) |
| STO (Safe Torque Off) | Mandatory | Not specified |
| Fire-rated landing doors | EN81-58, 120-min tested | IS 3612 (less rigorous) |
| Drive safety functions | SIL 2–3 rated | Not specified |
| Guide rail machining tolerances | Tight (Monteferro type) | Broader tolerance bands |
| ARD (Automatic Rescue Device) | Strongly recommended, widely adopted | Optional |
Why Does This Matter for Your Project?
1. Liability and Insurance
If a safety incident occurs and your elevator does not meet the standard it was claimed to meet — or meets only a lower standard than comparable buildings — your legal exposure as a developer increases significantly. EN81-compliant systems with documented certificates are defensible.
2. Project Approval and RERA
Several local development authorities in South India are moving toward requiring EN81 compliance documentation for elevator approvals in new residential projects. Providing EN81 certificates proactively often accelerates the approval process.
3. Premium Positioning
If you are building mid-range to premium residential apartments, specifying EN81 elevators is now expected by many buyers. The absence of EN81 documentation can become a selling disadvantage.
4. Long-Term Maintenance
EN81-compliant systems use standardised, documented components from certified manufacturers. This makes spare parts sourcing more transparent and competitive. IS-only systems from unverified manufacturers can lead to proprietary parts lock-in.
What Should Builders Specify?
For any residential project above 4 floors, we recommend specifying:
- EN81-20 compliance for the complete elevator system
- EN81-58 fire-rated landing doors (120-minute rating for high-rise)
- IWRC suspension ropes (Independent Wire Rope Core) — not fiber core
- ARD (Automatic Rescue Device) as standard — not optional
- STO (Safe Torque Off) function in the drive system
- Documentation package: EN81 test certificates, CE markings (or equivalent), fire door certification
When requesting quotations, ask each supplier specifically: "Can you provide EN81-20 test certificates for this system?" The answer will immediately distinguish genuine EN81-compliant systems from those merely claiming compliance.
The Sanyo ISquare Approach
At Sanyo ISquare, every elevator system we supply is designed and specified to EN81-20/50. We use WITTUR Germany door systems (EN81-58 fire-rated), Pfeifer Drako IWRC ropes, and Sicor Italy gearless machines — all with traceable European certifications. Our documentation package is prepared for every project.
Frequently Asked Questions
Is EN81 compliance legally mandatory in India? Not federally mandatory, though several states and local development authorities are incorporating EN81 requirements into their project approval processes. Regardless of legal mandate, EN81 compliance is industry best practice and provides significant liability protection.
Can an elevator be partly EN81-compliant? Yes — and this is a common issue. Some suppliers use EN81-compliant components in visible parts (doors, cabin) but non-compliant components in critical systems (ropes, safety gear). Ask for system-level EN81-20 test certification, not just component-level claims.
How much more expensive is an EN81 system vs a basic IS system? The cost premium for a genuine EN81-compliant system with WITTUR doors, IWRC ropes, and gearless machine is typically 15–25% higher than a basic IS-only system. However, the long-term maintenance cost difference often narrows or reverses this gap within 5–7 years.
Who certifies EN81 compliance in India? EN81 compliance is certified by European notified bodies (such as TÜV, Bureau Veritas, or SGS). Indian manufacturers who use European components can obtain EN81 test certificates from these bodies. Domestic IS certification is handled by BIS.