The document describes an auto rescue device for elevators called the ARD that uses a smart CPU for control and can support lifts from 5HP to 35HP. It comes in 4 models with capacities from 7.5HP to 35HP. The ARD is small, light, and easy to install. It has an IGBT-based PWM sine wave inverter with 85% efficiency and protections against overloads, under voltages, and over voltages.

1. Auto Rescue Device for Elevator
ARD
 Smart CPU Control
 Support the lift in 5HP~35HP
 Small, Light & Easy to install
Model ARD-10 ARD-15 ARD-25 ARD-40
Capacity 7.5HP 11HP 22HP 35HP
AC Input 415V / 220VAC + 15% - 20% Three Phase Input. 50/60Hz ± 10%
DC Voltage 48Vdc / 72Vdc / 96Vdc
Charger Type Controlled Rectifier CVCC
Charging Time 10 Hours for 90% of Full Battery Capacity
Inverter
Technology IGBT based PWM Sine Wave
Output Voltage 400V / 415V / 200Vac Three Phase 50/60Hz ± 0.1Hz
Inverter Efficiency 85%
Overload 105% continuous
Harmonic Distortion <3% on Linear load
Crest Factor 4:1
Power Factor 0.8
Phase Displacement 120° ± 1°
Dimension (LxWxD) 530x400x195mm
LCD Display
AC normal , Inverter normal ,
Batter low , overload
Protection
Output Overload & Short circuit
DC Under & Over Voltage
*Specifications are subject to change without prior notice due to constant improvement in design & technology.