LMS1-LA3 Solenoid-type ATS | 63A–630A, 400V, PC Class, IEC 60947-6-1

LMS1-LA3 Solenoid-type ATS | 63A–630A, 400V, PC Class, IEC 60947-6-1

Rated insulation voltage: AC690V.
Rated operating voltage: AC400V.
Rated operating current: 20A-630A.
Short-time withstand current: 10kA.
Maintenance capacity: 17kA.
Electrical life / Mechanical life:  1000 cycles / 5000 cycles.

LA3 Series ATS Manual

Rated insulation voltage: AC690V.
Rated operating voltage: AC400V.
Rated operating current: 20A-630A.
Short-time withstand current: 10kA.
Maintenance capacity: 17kA.
Electrical life / Mechanical life:  1000 cycles / 5000 cycles.

LA3 Series ATS Manual

The LMS1-LA3 Solenoid-type ATS (also called solenoid-operated ATSE) is a PC Class dual power automatic transfer switch that uses a high-speed solenoid driving mechanism to achieve fast, reliable switching between two AC power sources (mains & generator). Designed for 50/60Hz, 230/400V systems, with current ratings from 63A to 630A, it ensures uninterrupted power for critical loads where downtime is not allowed.

1. Model Meaning

2. Key Features

  • Solenoid Drive, Ultra-Fast Switching: 100ms-level transfer, minimizes power interruption
  • PC Class, Full Isolation: 3-position design (Source 1/Off/Source 2) with complete physical isolation
  • Wide Current & Voltage Range: 63A–630A, 3P/4P, 230V/400V AC, 50/60Hz
  • Built-in Intelligent Controller: Auto/manual mode, voltage/frequency monitoring, delay adjustment
  • Dual Interlock Protection: Mechanical + electrical interlock to prevent simultaneous closing of two sources
  • Robust Durability: Electrical life ≥1,000 cycles; mechanical life ≥5,000 cycles
  • Easy Installation & Operation: Wall/floor mount, front access, visual status indicators
  • Global Compliance: IEC 60947-6-1, GB/T 14048.11, CE, CB, CCC certified
  • Optional Communication: RS-485/Modbus for remote monitoring & control

3. Technical Data

3. Terminal block instruction

Start generator: when fault occurs in the normal power, this port will connect after delaying sometime.
Normal close: When the normal power of ATS is in closing state.closing signal without power is output from this port.
Standby close: When the standby power of ATS is in closing state.closing signal without power is output from this port.
Normal earth wire: When ATS are 3 phases, the normal earth wire is connected into this port.
Standby earth wire: When ATS are 3 phases, the standby earth wire is connected into this port.
Remark: The normal earth wire and standby earth wire is just suitable for ATS of 3 phases.

4. Installation dimensions

5. Applications

  • Data Centers & Server Rooms: Ensure 24/7 power for IT equipment
  • Hospitals & Healthcare Facilities: Life-saving devices & emergency systems
  • Commercial Buildings: Malls, hotels, airports, high-rises
  • Industrial Plants: Manufacturing lines, compressors, pumps
  • Telecom & Communication: Base stations, network rooms
  • Emergency & Fire Safety: Fire pumps, emergency lighting

6. Why Choose Solenoid-type ATS?

  • Faster Than Motor-Driven ATS: 100ms vs. 2–5s, critical for sensitive loads
  • Higher Reliability: Fewer moving parts, lower maintenance
  • Compact & Cost-Effective: Smaller footprint than motorized ATS
  • Proven Safety: PC Class isolation prevents backfeed & arc faults
  • Easy Integration: Works with standard generators & distribution panels

The LMS1-LA3 Solenoid-type ATS (also called solenoid-operated ATSE) is a PC Class dual power automatic transfer switch that uses a high-speed solenoid driving mechanism to achieve fast, reliable switching between two AC power sources (mains & generator). Designed for 50/60Hz, 230/400V systems, with current ratings from 63A to 630A, it ensures uninterrupted power for critical loads where downtime is not allowed.

1. Model Meaning

2. Key Features

  • Solenoid Drive, Ultra-Fast Switching: 100ms-level transfer, minimizes power interruption
  • PC Class, Full Isolation: 3-position design (Source 1/Off/Source 2) with complete physical isolation
  • Wide Current & Voltage Range: 63A–630A, 3P/4P, 230V/400V AC, 50/60Hz
  • Built-in Intelligent Controller: Auto/manual mode, voltage/frequency monitoring, delay adjustment
  • Dual Interlock Protection: Mechanical + electrical interlock to prevent simultaneous closing of two sources
  • Robust Durability: Electrical life ≥1,000 cycles; mechanical life ≥5,000 cycles
  • Easy Installation & Operation: Wall/floor mount, front access, visual status indicators
  • Global Compliance: IEC 60947-6-1, GB/T 14048.11, CE, CB, CCC certified
  • Optional Communication: RS-485/Modbus for remote monitoring & control

3. Technical Data

3. Terminal block instruction

Start generator: when fault occurs in the normal power, this port will connect after delaying sometime.
Normal close: When the normal power of ATS is in closing state.closing signal without power is output from this port.
Standby close: When the standby power of ATS is in closing state.closing signal without power is output from this port.
Normal earth wire: When ATS are 3 phases, the normal earth wire is connected into this port.
Standby earth wire: When ATS are 3 phases, the standby earth wire is connected into this port.
Remark: The normal earth wire and standby earth wire is just suitable for ATS of 3 phases.

4. Installation dimensions

5. Applications

  • Data Centers & Server Rooms: Ensure 24/7 power for IT equipment
  • Hospitals & Healthcare Facilities: Life-saving devices & emergency systems
  • Commercial Buildings: Malls, hotels, airports, high-rises
  • Industrial Plants: Manufacturing lines, compressors, pumps
  • Telecom & Communication: Base stations, network rooms
  • Emergency & Fire Safety: Fire pumps, emergency lighting

6. Why Choose Solenoid-type ATS?

  • Faster Than Motor-Driven ATS: 100ms vs. 2–5s, critical for sensitive loads
  • Higher Reliability: Fewer moving parts, lower maintenance
  • Compact & Cost-Effective: Smaller footprint than motorized ATS
  • Proven Safety: PC Class isolation prevents backfeed & arc faults
  • Easy Integration: Works with standard generators & distribution panels

Data Download

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