Independent Editorial
The ERD Resource Hub
Vendor-neutral buying guides, technical explainers, brand comparisons, and specifications — built for lift engineers, architects, PMC teams, and housing society managers across India.
Buying Guides
Capacity sizing, battery selection, installation checklists, and total cost-of-ownership math for every building class — from 4-person residential lifts to 20-lift centralised systems.
Technical Explainers
Inside the IGBT inverter, the bi-directional switch, zero-break transition physics, and the math behind 3ms switchover. Written for engineers who need the real numbers.
Brand Comparisons
Side-by-side analysis across all major ERD manufacturers operating in India. Specs, warranty terms, pricing ranges, real-world failure data — fully vendor-neutral.
ERD Specifications
Complete technical specification tables: 5 KVA to 200 KVA, voltage configurations, battery bank sizing, DC draw current, and Haryana-compliance status for each system.
Sizing Calculator
India's first open ERD sizing calculator. Select your lift brand, capacity, speed, and desired backup duration — get exact ERD KVA and battery count for SMF, Tubular, or Lithium.
Policy & Regulation
Haryana Lift Act explained, HAREDA 15-minute mandate, state-by-state tracker, IS 14665 standards, RTI templates, and accident ledger. Know your legal obligations.