Secondary level protection of distribution panels, sub-panels, lighting systems and HVAC systems.

Surg-Shield

Up to 250KW systems, Category B locations.

The StediWatt SURG’SHIELD Series is intended for secondary-level commercial, industrial protection. It provides a safe, critical surge path directly to ground and isolates downline circuits and equipment from transients, surges, storms, utility line hazards, and internal electrical pollution. Intended for use under the shadow of the larger Primary Level SE* Series, but can also serve as an excellent stand-alone TVSS in typical Category B environments. Ideal for hazard-prone areas where critical equipment or expensive downtime risk is a factor. As the workhorse of the StediWatt gallery of pure power, let the SURG’SHIELD save your assets and your profits!

  • For 120VAC, Single Ø -up to 600VAC 3 Ph. applications
  • MCOV Ratings: 150/320; 320/550; 390/680 VAC Max. (typ.)
  • Maintains SE* Single Element Surge Capacity: 45,000 Amps
  • Minimum Surge Current Per Phase: 135,000 Amps*
  • Total Non-degrading Surge Capacity: 335,000 Amps
  • All Modes of Protection: L-L, L-N, L-G and N-G (if applies)
  • Leads are #10 Stranded Copper, Max 36 in for Close-coupling
  • FuseLink Technology Maintains Full Rated Surge Capacity
  • User Safe, StediWatt Safety Surge Cushion™ *Patent Pending
  • Safety tested, UL & CUL Listed to Standard 1449, 2nd Edition
  • Safety tested to ANSI/IEEE C62.11,C62.41 & C62.45 Std. 587
  • RemoteAlert Provides Auto-remote Protection Status Alert*
  • LED Self-test Protection Status Monitors for each phase
  • Features NEMA/EEMAC Type 12 & 13 Rated Enclosures
  • Manufacturers 10 Year Full Replacement User Warranty
  • System Designed to Protect Downline TVSS From Degradation
* Some Specifications will vary depending on the voltage configuration. Refer to spec sheet for full information.
Features New Robust Hi-Energy Single-Element (“SE") TVSS Design
Maintains 335,000 Solid Amps of Safe, Non-Degrading Surge Capacity!
Protects integrity of your downline equipment; preserves any equipment-level GAR’DIAN TVSS
Easy Mounting Installation for efficient ‘Close-Coupled’ protection of entire electrical system
Safely protects sensitive electrical equipment and total system load capacities up to 250KW
Greatly increases ‘Mean Time Between Failures’ of Lighting, Electronic and Electrical Equipment

Models

Model S-1120-3S S-1208-4S S-1240-3S S-1240-4S S-1480-3S S-1480-4S S-1600-3S S-1600-4S
AC Service Types 3Ø WYE 3Ø Delta 3Ø Hi-Leg 3Ø Delta 3Ø WYE 3Ø Delta 3Ø WYE
Nominal AC Line Voltage (VRMS) 120/240 120/208 240/240 120/208/240 480/480 277/480 600/600 347/600
Frequency Range - USA / Euro Std 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz
Single Element SE* Protection Modes L-N; L-L L-N; L-L & N-G L-L L-N; L-L & N-G L-L L-N; L-L & N-G L-L L-N; L-L & N-G
Knock Out Size for Mounting 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4"
Leads: #12 AWG Stranded Copper 3+G 4+G 3+G 4+G, Hi-Leg 3+G 4+G 3+G 4+G
Max. SE* Per Mode Surge KVA 45 45 45 45 45 45 45 45
Max. Surge Current Per Phase KVA 90 135 135 135 135 135 135 135
Total Surge Capacity (KVA@ 8x20 μsec pulse) 154 335 218 335 218 335 218 335
Max. Continuous Operating Voltage (MCOV) 150/320 150/320/320 320 150/320/320 550 320/550 680 390/680
Max. Clamping Voltage - L-L 520 520 520 520 1175 1175 1800 1800
Max. Clamping Voltage - L-N 390 390 N/A 390 N/A 675 N/A 1120
Max. Clamping Voltage - N-G 390 390 N/A 390 N/A 390 N/A 1120
Warranty 15 Years per Manufacturers Warranty Guidelines
Enclosure Dimensions (HxWxD) 6 1/4" X 4 1/4" X 3 1/8"
Enclosure Type NEMA/EEMAC Type 12 & 13 Waterproof, Explosion Proof, Spark Proof with Embeded PCB and Contacts
Certifications UL / CUL Std 1449, 3rd Edition and Full Line is ETL Certified, Safety Tested and Listed
Safety Testing UL & ANSI/IEEE C62.11,C62.41 & C62.45 Std. 587 and NEMA Std. LS-1
Protection Status Indicators Lifetime Green LED Self Test Indicators For Each Phase
Shipping Weight Lbs (Approx.) 5.2 6 6 6 6 6 6.5 6.8