Surge Protection, Lightning Protection and Power Monitoring

OVERVOLTAGE PROTECTION DEVICES

Any facility with motors stopping and starting, light load panels being turned on and off frequently, and other potential power disturbances is at risk for damage caused by a surge spike. Turn to Mersen Surge-Trap for surge protection that covers every voltage need within your facility.

Power Line SPD - NEMA UL CSA TYPE 1

Mersen’s Surge-Trap® STXH surge protective device adds a critical layer of surge protection for your entire home. From your family room to your office, and your kitchen, your entire electrical system is protected. This simple whole house solution is installed at your load center – out of sight, out of mind. Featuring Mersen’s industry leading TPMOV® Technology inside, Mersen’s Surge-Trap® SPDs meet the rigorous safety requirements of the UL 1449 4th edition safety standard and need no additional overcurrent protection. UL Listed, CSA certified, RoHS

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Power Line SPD - DIN-RAIL UL CSA TYPE 1

Surge-Trap® Modular Surge Protective Device (SPD) is a no-fuse, fail-safe surge suppressor featuring Mersen’s patented TPMOV® technology inside. UL 1449 4th Edition approved, it is DIN-rail mountable featuring a fail-safe self-protected design, visual indicator, and a small footprint. A remote indicator option provides status to critical control circuitry. The Surge-Trap Modular SPD has a high short circuit rating and a thermally protected MOV, which eliminates the need for additional overcurrent protection devices. UL Listed, UL recognized, RoHS.

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DC Photovoltaic SPD - DIN-RAIL IEC/UL CSA

SSTP PV is the series of surge protective devices that provide advanced overvoltage protection to photovoltaic systems by utilizing Mersen’s optimized dynamic thermal disconnection system, which does not require additional overcurrent protection (back-up fuse) due to its high short-circuit withstand rating. These surge protective devices are suitable for all PV applications: large-scale, rooftop and self-consumption (off-grid) DC installations. The series includes specific multipole products for multiple MPPT (Maximum power point tracker) inverters. CE, UL recognized, RoHS.

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Power Line SPD - DIN-RAIL IEC TYPE 2+3/UL CSA

ST T23 20 is the series of combined Type 2+3/Class II+III surge protective devices for discharging voltage surges while providing a very fine voltage protection level, in accordance with EN/IEC 61643-11. Suitable as the final stage of protection in panels with Type 2 protection devices installed upstream such as STP T2 40 SPDs. These SPDs should be installed as close as possible to the equipment being protected. Also available with EMI filter. CE, UL recognized, RoHS.

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Surge Protection Components for OEM Designers

Mersen's TPMOV® (Thermally Protected Metal Oxide Varistor) eliminates common destructive failure modes associated with standard MOVs.
Comprised of a voltage clamping device and a disconnecting apparatus that monitors the status of the metal oxide disk inside the TPMOV, the device is securely disconnected in the event of an overvoltage by an arc shield. UL recognized, RoHS.

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Power Line SPD - DIN-RAIL IEC TYPE 1

STM T1 50 is the most robust series of single pole Type 1/Class I lightning current arresters, able to discharge energy (current) from a direct lightning strike (10/350µs) on an external lightning protection system (LPS) or overhead supplies, in accordance with EN/IEC 61643-11.

Suitable as the first step of protection in incoming power supply panels and areas with high exposure to lightning strikes, fitted with an external lightning protection system. CE, RoHS.

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Power Line SPD - DIN-RAIL IEC TYPE 1+2

STP T12 is the series of combined Type 1+2/Class I+II devices for discharging lightning currents and protecting against voltage surges, in accordance with EN/IEC 61643-11. Suitable as the first step of protection in incoming power supply panels and areas with exposure to the atmosphere, where installations are usually provided with an external lightning protection system. CE, RoHS.

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Power Line SPD - DIN-RAIL IEC TYPE 2/UL CSA

STP T2 40 is the series of Type 2/Class II surge protective devices for discharging voltage surges, in accordance with EN/IEC 61643-11 and certified UL 1449 4th Ed. Suitable for the second stage of protection in supply distribution panels in which Type 1 protection devices are installed upstream, or for the first stage of protection in commercial or other applications not exposed to direct strikes and with no external lightning protection system. CE, UL recognized, RoHS.

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LED Lighting SPD - IEC TYPE 2+3

Combined Type 2+3/Class II+III surge protective devices for discharging voltage surges while providing a very fine voltage protection level, in accordance with EN/IEC 61643. Solutions suitable for protection of LED outdoor luminaires (street-light and for protection in the fusebox (mast) of LED outdoor luminaires. Due to the exposure of the extremely sensitive LED electronics to lightning–induced overvoltages, STL T23 is a widespread market solution amongst OEM manufacturers of LED lighting systems. CE, RoHS.

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Power Frequency Overvoltage Protection Devices

POP CT is the series of combined power frequency overvoltage protection (POP) and surge protection device for discharging surge current in the first step of protection according to EN/IEC 61643-11. Intended for actuation on the contactor of an installation (not included). Suitable for the first stage of protection in commercial or other applications not exposed to direct strikes and with no external lightning protection system. These devices are suitable for installation in lighting panels. CE.

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