1. Product Overview

2. Core Competitive Features

• GN1: Standard type, with fire protection function, under-voltage and phase loss protection.
• GA1: Economic type, without fire control signal function.
• GA: Intelligent type, can be connected to an external controller.

✅ Mechanical & Electrical Double Interlock Protection

Dual interlock structure physically and electronically blocks simultaneous closing of two power supply contacts, completely eliminating cross-power short-circuit safety hazards.

✅ Auto + Manual Dual Operation Modes

Intelligent automatic switching for daily unattended running; independent blue manual operating handle for forced manual switching during equipment maintenance or controller failure.

✅ V0 Grade Flame Retardant Insulation Housing

High-temperature resistant flame retardant plastic shell, anti-aging, fire-proof, meets international electrical safety standards for indoor distribution cabinet long-term operation.

✅ Thickened Pure Copper Large-Current Terminals

All wiring conductive terminals use thick high-purity copper, low contact resistance, no overheating under long-term 400A full-load continuous operation.

✅ Real-Time Dual Power Status Indicator Lights

Front panel LED indicator lights clearly display Power I and Power II live status, maintenance staff can quickly judge power supply working state at a glance.

✅ Wide Application Compatibility for Critical Loads

Suitable for all uninterruptible power demand scenarios: medical hospital equipment, server data rooms, fire fighting pumps, commercial lighting and elevator emergency power supply.

✅ Factory Spot Stock & OEM Customization Support

Direct factory supply without middle markup, abundant ready stock for fast shipment; accept custom current ratings, silk screen brand logo and special linkage function modification for overseas export bulk orders.

3. Main Product Specifications

4. Wide Application Scenarios

• Hospital medical equipment uninterrupted emergency power supply system
• Data center server room critical load dual power protection
• Commercial shopping mall, office building lighting & elevator standby power
• Fire fighting pump, smoke exhaust fan fire emergency power distribution cabinet
• High-rise residential building public equipment dual power switching
• Industrial factory automated production line critical machinery backup power
• School, hotel, stadium public facility emergency power supply projects

5. Installation & Operation Guide

1. Install LMS2 ATSE switch firmly inside low-voltage distribution cabinet via reserved mounting holes, reserve heat dissipation space around the unit.
2. Connect main power source to Power I terminal group, standby backup power source to Power II terminal group, connect all building load circuits to common output terminals.
3. Switch to AUTO mode: The controller automatically monitors two power sources; if main power fails, it instantly switches load to standby power without manual intervention.
4. For maintenance work, toggle the AUTO/MANUAL switch to MANUAL position, use the blue manual handle to manually switch between Power I and Power II, lock the handle position during overhaul.
5. Check front panel LED indicators regularly to confirm two power sources’ live status; inspect copper terminals for loose wiring every quarter to avoid overheating.
6. GA1 fire dedicated model can be connected with fire control cabinet linkage signal to realize forced power cut-off function under fire alarm conditions.

6. Frequently Asked Questions (FAQ)

Q1: What are the differences between LMS2 GN1, GA1 and GA three models?

Q2: What safety protection does LMS2 ATSE automatic transfer switch have?

Q3: Does LMS2 ATS support both automatic and manual operation?

Q4: What projects is LMS2 series ATSE transfer switch suitable for?

Q5: Can you customize special functions for LMS2 ATSE for export bulk orders?

7. Factory Wholesale Advantages

1. Original dual power transfer switch production factory without intermediate distributors, competitive ex-factory price for large-volume overseas construction electrical export orders.
2. Every finished LMS2 ATSE undergoes 72-hour continuous full-load aging test and interlock safety inspection before delivery to guarantee stable long-term uninterrupted switching performance.
3. Professional electrical engineering team provides model selection (GN1/GA1/GA), current rating matching and cabinet installation wiring technical support for building power distribution projects.
4. Stable mass production capacity with fast delivery lead time, shockproof anti-collision export carton packaging to prevent terminal deformation and casing damage during sea transportation.
5. Flexible OEM customization service including brand logo silk printing, special current specification adjustment and customized fire linkage function to meet different regional construction electrical safety standards.