Automatic Transfer Switch CHLTGX3 for AC 110 V systems Reliable automatic transfer switch designed for uninterrupted power transfer between a primary and a standby source. Built from flame retardant PC material for long service life, precise sensing, and low heat generation. Key benefits Uninterrupted power supply: Automatically transfers load from mains to standby power when the main supply fails or voltage goes outside set limits, minimizing downtime. Sensitive and accurate: Fast, precise detection of voltage and current abnormalities for reliable switching performance. behavior: Fine tune transfer time, reset time, overvoltage and undervoltage thresholds, and overcurrent protection to match system requirements. Durable and safe construction: Flame retardant PC housing and low heat dissipation support safe operation in enclosed electrical installations. Flexible priority settings: Configure priority between mains, generator, and inverter and set voltage thresholds and switch speed for efficient source selection. Typical applications Commercial buildings requiring continuous lighting, elevators, or HVAC control Data centers and server rooms that need stable power for critical equipment Communication base stations and network hubs for persistent connectivity Main features and functions Model: CHLTGX3 Operating voltage: AC 110 V Power terminals: N, L1, L2, L3 Automatic switching: Transfers load automatically on failure or abnormal voltage of the main supply Adjustable parameters: Transfer time, auto reclosing delay, priority stage delay, overvoltage and undervoltage trip points, and overcurrent limits Priority selection: Mains, generator, or inverter can be prioritized; voltage thresholds and switch speed are user configurable Sensitive trip timing: Overvoltage and undervoltage trip delay 0.1 s standard, 0.02 s at or above 350 V Technical specifications Auto reclosing delay (Ton): adjustable from 1 s to 600 s priority stage delay: adjustable from 1 s to 600 s Overvoltage trip delay: 0.1 s; at or above 350 V, 0.02 s Undervoltage trip delay: 0.1 s; at or above 350 V, 0.02 s Rated operating current: 63 A Maximum operating current: 80 A Pollution degree: 3 Altitude: up to 2000 m Operating temperature: 25 C to +50 C Relative humidity: not exceeding 50 percent at 40 C, non condensing Wire size: 0.5 mm2 to 1 mm2 Installation: fits 35 mm standard mounting rail What is in the package 1 x Automatic Transfer Switch CHLTGX3 1 x User Manual Installation and use Designed for DIN rail mounting and straightforward wiring to terminals N, L1, L2, L3 Configure parameters according to the user manual to match system voltage thresholds, timing, and priority preferences Follow the user manual for safe installation, commissioning, and routine checks Why choose this model Combines precise sensing and fast switching with adjustable settings to integrate into a variety of power systems Compact DIN rail design and clear parameter control make it suitable for commercial, data center, and telecommunications applications where continuous power is essential