LMS1-GA Automatic Transfer Switch(ATS) 100-3200A Motor

LMS1-GA Automatic Transfer Switch(ATS) 100-3200A Motor

model:LMS1-GA
Rated current:16~3200A
Frame size:100、160、250、630、1600、3200
Rated voltage: AC400V 50Hz
Rated control voltage:AC230V
Rated insulation voltage:690V、800V、1000V
Rated impulse withstand voltage:8kV、12kV
Transfer time:<2.5s

LMS1-GA Series ATS Manual

model:LMS1-GA
Rated current:16~3200A
Frame size:100、160、250、630、1600、3200
Rated voltage: AC400V 50Hz
Rated control voltage:AC230V
Rated insulation voltage:690V、800V、1000V
Rated impulse withstand voltage:8kV、12kV
Transfer time:<2.5s

LMS1-GA Series ATS Manual

1. Product Overview

The LVMA LMS1-100GA/4P 100A PC-Class ATS is a compact, high-performance automatic transfer switch designed for dual-source power systems (mains + generator). As a PC-class ATS, it features a motorized, mechanically interlocked switching mechanism that ensures zero-cross switching and prevents simultaneous connection of both power sources. Rated at 100-3200A (4-pole, 3-phase + neutral) for 400V AC systems, it includes a key-lock function for enhanced safety during maintenance. Ideal for small to medium commercial buildings, industrial facilities, and telecommunications systems requiring reliable power continuity.
The automatic transfer switch conforms to IEC60947-6-1 standard, and obtains CCC,CE, TUV certificates.

2. Key Specifications

Parameter Details
Model LMS1-100/4P
Poles 3P / 4P (3-phase + neutral)
Rated Current (In) 100-3200A
Rated Operational Voltage (Ue) AC 400V / 50Hz
Rated Insulation Voltage (Ui) 800V
Rated Impulse Withstand Voltage 6kV
Switching Class PC-class (open circuit conversion)
Control Modes Automatic, Manual (with key lock for manual mode)
Operating Category AC-33B
Mounting Type Panel mount (compact form factor)
Enclosure Rating IP20 (front face)
Compliance Standards IEC 60947-6-1, GB/T 14048.11
Operating Temperature -10°C ~ +60°C
Mechanical Life ≥10,000 operations

3. Core Features

PC-Class High-Reliability Design: Motorized, mechanically interlocked switching mechanism ensures safe, simultaneous-source prevention and zero-cross switching for critical loads.

Key-Lock Safety Function: Manual mode is secured with a key lock, preventing unauthorized operation and ensuring safety during maintenance procedures.

Compact Form Factor: Space-saving design suitable for installation in standard distribution panels and ATS cabinets, ideal for limited-space applications.

Auto/Manual Operation: Selectable automatic transfer (based on power status) and manual control (key-locked) for maintenance or testing.

Fail-Safe Interlock: Mechanical interlock eliminates the risk of cross-connection between the two power sources, ensuring compliance with electrical safety codes.

High Withstand Capacity: 8kA short-circuit making and 5kA short-circuit connection capacity ensure stable performance under fault conditions.

Robust Construction: Heavy-duty housing and high-quality contacts ensure reliable performance in demanding commercial and industrial environments.

Clear Phase Markings: Color-coded phase terminals (A/B/C/N) simplify wiring and installation, reducing the risk of errors.

4. Applications

  • Small to medium commercial building backup power systems
  • Industrial facility critical load protection
  • Telecommunications tower and base station power systems
  • Retail and office building emergency power
  • Generator rental and portable power units
  • Remote site and off-grid power systems

5. Why Choose LVMA LMS1-100GA/4P ATS?

  • PC-Class Reliability: Motorized, interlocked switching mechanism provides the highest level of safety and performance for critical load applications.
  • Enhanced Safety with Key Lock: Key-locked manual mode prevents unauthorized operation, adding an extra layer of safety for maintenance.
  • Compact & Space-Saving: Compact design minimizes panel space usage, making it ideal for installations with limited room.
  • Simple Installation & Operation: Clear phase markings and intuitive controls simplify wiring, setup, and maintenance.
  • Fail-Safe Design: Mechanical interlock ensures only one power source is connected at a time, eliminating cross-connection risks.
  • Cost-Effective Solution: Compact, integrated design offers high performance at a competitive price point for small to medium ATS applications.

6. Technical Documents & Support

  • Download the full datasheet for detailed specifications, wiring diagrams, and installation instructions.
  • Contact our engineering team for custom current ratings or OEM solutions for large-scale ATS projects.
  • Request a quote with your project details for bulk pricing, lead times, and compliance certifications.

1. Product Overview

The LVMA LMS1-100GA/4P 100A PC-Class ATS is a compact, high-performance automatic transfer switch designed for dual-source power systems (mains + generator). As a PC-class ATS, it features a motorized, mechanically interlocked switching mechanism that ensures zero-cross switching and prevents simultaneous connection of both power sources. Rated at 100-3200A (4-pole, 3-phase + neutral) for 400V AC systems, it includes a key-lock function for enhanced safety during maintenance. Ideal for small to medium commercial buildings, industrial facilities, and telecommunications systems requiring reliable power continuity.
The automatic transfer switch conforms to IEC60947-6-1 standard, and obtains CCC,CE, TUV certificates.

2. Key Specifications

Parameter Details
Model LMS1-100/4P
Poles 3P / 4P (3-phase + neutral)
Rated Current (In) 100-3200A
Rated Operational Voltage (Ue) AC 400V / 50Hz
Rated Insulation Voltage (Ui) 800V
Rated Impulse Withstand Voltage 6kV
Switching Class PC-class (open circuit conversion)
Control Modes Automatic, Manual (with key lock for manual mode)
Operating Category AC-33B
Mounting Type Panel mount (compact form factor)
Enclosure Rating IP20 (front face)
Compliance Standards IEC 60947-6-1, GB/T 14048.11
Operating Temperature -10°C ~ +60°C
Mechanical Life ≥10,000 operations

3. Core Features

PC-Class High-Reliability Design: Motorized, mechanically interlocked switching mechanism ensures safe, simultaneous-source prevention and zero-cross switching for critical loads.

Key-Lock Safety Function: Manual mode is secured with a key lock, preventing unauthorized operation and ensuring safety during maintenance procedures.

Compact Form Factor: Space-saving design suitable for installation in standard distribution panels and ATS cabinets, ideal for limited-space applications.

Auto/Manual Operation: Selectable automatic transfer (based on power status) and manual control (key-locked) for maintenance or testing.

Fail-Safe Interlock: Mechanical interlock eliminates the risk of cross-connection between the two power sources, ensuring compliance with electrical safety codes.

High Withstand Capacity: 8kA short-circuit making and 5kA short-circuit connection capacity ensure stable performance under fault conditions.

Robust Construction: Heavy-duty housing and high-quality contacts ensure reliable performance in demanding commercial and industrial environments.

Clear Phase Markings: Color-coded phase terminals (A/B/C/N) simplify wiring and installation, reducing the risk of errors.

4. Applications

  • Small to medium commercial building backup power systems
  • Industrial facility critical load protection
  • Telecommunications tower and base station power systems
  • Retail and office building emergency power
  • Generator rental and portable power units
  • Remote site and off-grid power systems

5. Why Choose LVMA LMS1-100GA/4P ATS?

  • PC-Class Reliability: Motorized, interlocked switching mechanism provides the highest level of safety and performance for critical load applications.
  • Enhanced Safety with Key Lock: Key-locked manual mode prevents unauthorized operation, adding an extra layer of safety for maintenance.
  • Compact & Space-Saving: Compact design minimizes panel space usage, making it ideal for installations with limited room.
  • Simple Installation & Operation: Clear phase markings and intuitive controls simplify wiring, setup, and maintenance.
  • Fail-Safe Design: Mechanical interlock ensures only one power source is connected at a time, eliminating cross-connection risks.
  • Cost-Effective Solution: Compact, integrated design offers high performance at a competitive price point for small to medium ATS applications.

6. Technical Documents & Support

  • Download the full datasheet for detailed specifications, wiring diagrams, and installation instructions.
  • Contact our engineering team for custom current ratings or OEM solutions for large-scale ATS projects.
  • Request a quote with your project details for bulk pricing, lead times, and compliance certifications.

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