PRODUCTS

Liebert LM Series

Surge Protective Device

Cost-Effective, Facility-Wide, Modular Surge Protection

Liebert LM Series is a multi-mode surge protective device that offers continuous protection from damaging transients and electrical line noise. The system uses patented circuitry to monitor the status of all protection modes, including neutral to ground. In addition, high isolation form C dry contacts provide for remote monitoring of suppression system failure, and phase and power loss.

The Liebert LM Series surge protective device is available in surge ratings from 60kA to 250kA, multiple voltages, 60Hz or 50Hz.

UL 1449 3rd Ed. Type 1 Listed

Features
  • Surge suppression range of 60 to 500 kA per phase
  • Industry's highest surge current repeatability
  • UL rated 200k AIC with component level fusing for safe operation
  • Sine wave tracking, EMI/RFI filtering
  • ANSI/IEEE C62.11, C62.41, C62.45 categories A, B, and C3 tested
  • Tested to NEMA LS1
  • NEMA 12 enclosure with 3R, 4, and 4X options available
  • 5-year warranty
  • 2 sets of Form C dry contacts
Benefits
  • Modular design allows for flexibility
  • Surge suppression range of 60 to 500 kA per phase
  • Internal/external monitoring, including neutral to ground
  • UL rated 200k AIC with component level fusing for safe operation
  • All modes of protection standard, any combination optional
  • Choice of options
    • Disconnect
    • Audible alarm
    • Transient counter
    • Remote monitor panel
    • Test set
Technical Specification
  • Maximum Continuous Operating Voltage (MOV): 120V-125%, all others 115%
  • Surge current Rating: 60kA to 300kA per Mode
  • Fault Current Rating (AIC): 200 kAIC
  • Operating Frequency Range: 47 – 63 Hz   
  • EMI Noise Rejection:
    • 100kHz - 34dB
    • 1MHz – 51dB
    • 10MHz – 54dB
    • 100MHz – 48dB
  • Response Time: <0.5 ns
  • Operating Humidity: 0% to 95%
  • Operating Temperature: -40º c to +50ºc
  • Status Indication: LEDs, Dry Contacts
  • Warranty: 5 Years Parts
Contact Support

Surge Suppression Products
Contact our support department about your Surge Protection product.

Telephone: +1 607 721 8840
Toll-Free: +1 800 288 6169