Mersen Surge-Trap® STLC Series
- rebeccavanessendel
- 2 days ago
- 2 min read

Type 1 Surge Protective Device
Mersen's Surge-Trap® STLC surge protective device adds a critical layer of surge protection for the entire home. The STLC series can be installed in minutes, and is unique in that it has been designed and tested to fit in a variety of load centers from multiple manufacturers. The STLC Series is designed with Mersen's TPMOV® technology to ensure superior safety and reliability. Listed UL 1449 5th Edition Type 1 SPD and satisfies latest NEC requirement for surge protection for residential dwellings.

Key Features & Benefits
Designed with industry leading Mersen TPMOV technology
Installs directly into load center bus bar, utilizing any (two) open adjacent breaker slots
Versatility: fits into most residential load centers with 1" spacings
2 Modes of Protection (L-N, L-L)
3-year manufacturer's warranty, plus up to $25k connected equipment warranty
Applications
120/240VAC residential load centers
Approvals
ANSI/UL 1449 5th Edition, Type 1 SPD, File E517916
RoHS Compliant
Technical Specifications
Frequency (Hz): 50/60 Hz UL SPD Type: Type 1 Format: STLC Reach Compliant: Yes | Operating Temperature: -20 °C to 65 °C Storage Temperature: -20 °C to 65 °C Harmonized System: 853630 Degree of Protection (IP): IP20 |
One Compact Device Protects the Whole House from Damaging Surges
Home Office
Living/Family Room
Laundry Room
| Utility
Bedrooms
Garage
| Kitchen
External Systems
|
Power-Flo Technologies is proud to partner with Mersen and their Surge-Trap® STLC surge protective devices that deliver peace of mind by safeguarding every corner of the home—from essential appliances to today’s connected devices. With quick installation, proven compatibility across leading load centers, and the unmatched safety of TPMOV® technology, homeowners can trust STLC devices to provide reliable, whole-home protection against damaging electrical surges. Backed by rigorous UL certification and warranty coverage, it’s a compact solution that offers powerful protection where it matters most. For a safer, smarter, and more resilient home, the STLC Series is the clear choice.