PRODUCTS

Liebert SH Series

Hybrid Surge Protective Device
Liebert SH Series (Hybrid) is the first hybrid product in the industry to offer a true coordinated multi-stage system of suppression. Designed specifically for the needs of the telecommunications industry, it integrates the fast response time of the SAD (Silicon Avalanche Diode) module with the high-energy capability of the standard Liebert Interceptor MOV (Metal Oxide Varistor) modules.

The patent-pending Surge Current Transition Circuit of the Liebert SH continually allows for seamless transition from the primary SAD technology to the secondary MOV array technology suppression system long before component failure becomes a concern. Surge current capacity ranges from 250 kA to 750 kA per phase.

UL 1449 3rd Ed. Type 1 Listed
Features
  • Liebert SH Series (Hybrid) builds upon the industry standard Liebert SI Series.
  • Patented component level monitoring — including neutral to ground.
  • Unique sand-packed silver fuse network UL Rated at 200kAIC for safety.
  • All surge suppression components used are computer tested and matched.  SADs are matched to +/- 1% and MOVs are matched to 1 volt for optimum reliability and long life.
  • Highest surge current capability and survivability in the industry.
  • Built-In-Test feature standard.
  • 10-year warranty on parts and 5-year on-site labor, backed by Emerson Power Service.
Benefits
  • True, coordinated mult-staged system of suppression.
  • Lowest UL 1449 clamping voltages achieved.
  • Smaller enclosure size allow for easier installation for hybrid system.
Technical Specification
Connection meansparallel connected

Agency Listing

ANSI/UL 1449 Third Edition, UL 1283 (Type 2 Locations),
cUL (Type 2 Locations), FCC Part 15 Class B
Protection ModesAll modes standard(L-N, L-G, N-G, L-L); Optional - any combination
Surge Current Capacity250 to 750kAmps per phase depending on model
Surge Energy Rating (Primary SAD)500 Joules
Fault Current Rating200kAIC
Location TypeType 1
Nominal Discharge Current (In)200kA
EMI/RFI Filtering63 dB max from 10kHz to 100MHz
SAD MatchingWithin 1%
MOV MatchingWithin 1V
Response Time <.5 nanoseconds
Monitoring FeaturesInternal/External Status LEDs, Audible Alarm, Summary Alarm Contact (2 sets), Built-in-test circuit tests MOV/fuse array capacities, Phase loss indication, Low voltage indication, Loss of power indication, Surge counter (optional)
EnclosureNEMA 12 standard Optional - NEMA 3R, 4, 4X and caseless
Line Frequency47-63 Hertz
Line Voltage+/-15% nominal
Temperature -40 to +60 degrees C
Relative Humidity0 to 95% noncondensing
Altitude0 to 18,000 feet
Audible noiseLess than 45 dBa
Warranty10-years parts, 5-year labor
Standard FeaturesUnit status indicators, Dual, isolated form C dry contacts
Optional FeaturesIntegral disconnect
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