Independent Technical Tool

ERD & Lift Inverter
Sizing Calculator

India's first open battery-sizing tool for 3-phase Emergency Rescue Devices. Based on field data from 200+ installations. Enter your lift details — get exact battery requirements for any backup duration.

Step 1 — Lift Details

Lift Brand

Lift Capacity

Lift Speed

Motor KW (auto-calculated or enter manually)

✓ Calculated: 8.83 KW — Formula: Load × Speed × 9.81 ÷ (1000 × efficiency)

Step 2 — System Configuration

Number of Lifts on this ERD

Battery Size

Step 3 — Required Backup Duration

Haryana Lift Act mandates minimum 15 minutes. 30 minutes recommended for most buildings.

ERD & Lift InverterSizing Calculator

ERD & Lift Inverter
Sizing Calculator