Surge Protection, Lightning Protection and Power Monitoring

OVERVOLTAGE PROTECTION DEVICES

A global leader in overvoltage protection devices, Mersen offers a comprehensive line of surge protection devices, components, and systems.

Power Line SPD - DIN-RAIL IEC TYPE 1

PHP surge trap modular surge protection device

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.

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

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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 surge protective 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. 

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

php power line spd din rail iec type

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.

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

php power line csa

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.

DC Photovoltaic SPD - DIN-RAIL IEC/UL CSA

Php dc photovoltaic spd

DC Photovoltaic SPD - DIN-RAIL IEC/UL CSA

STP 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.

LED Lighting SPD - IEC TYPE 2+3

spd iec type 2+3

LED Lighting SPD - IEC TYPE 2+3

Combined Type 2+3/Class II+III syreg 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.

Power Frequency Overvoltage Protection Devices

power frequency overvoltage protection

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.

Surge Protection Components for OEM Designers

php surge proection components for oem desingers

Surge Protection Components for OEM Designers

Mersen's patented 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.

Power Line SPD - NEMA UL CSA TYPE 1

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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. 

EP Bangalore Office

Bangalore Sales Office

No 19, 4th Cross, Bommasandra Industrial Area,
Annekal Taluk,
BANGALORE, Karnataka- 560099

T: +91 802 783 4001
+91 96113 99447
+91 96639 07546

EP Customer Support Engineer
Pratima Naik

Bangalore Sales Office

Plot no. 19, 4th Cross, Bommasandra Industrial Area
560 099 Bangalore, Karnataka

T: +91 96113 99447

EP Customer Support Engineer2
Shivaram Adiga

EP Customer Support Engineer

"Plot no. 19, 4th Cross, Bommasandra Industrial Area
560 099 Bangalore, Karnataka"

T: +91 96639 07546

EP Area Sales Manager - South India
A Pushparajan

EP Area Sales Manager - South India

Plot no. 19, 4th Cross, Bommasandra Industrial Area
560 099 Bangalore, Karnataka"

T: +91 990 003 0310

EP Area Sales Manager - West India
Shailesh Kirpekar

EP Area Sales Manager - West India

"Plot no. 19, 4th Cross, Bommasandra Industrial Area
560 099 Bangalore, Karnataka"

T: +91 968 650 7456

EP Area Sales Manager - East India , Bangladesh & Bhutan
Diptesh Ghosh

EP Area Sales Manager - East India , Bangladesh & Bhutan

T: +91 9742133003

EP Area Sales Manager - North India & Nepal
Deepak Pant

EP Area Sales Manager - North India & Nepal

"A-1106,
Stellar MI Citihomes,
GH – 07A, Omicron – III,
Greater Noida – 201 310 U.P

T: +91 959 175 4743

EP Head Sales
Sunil Menon

Head Sales EP

"Plot no. 19, 4th Cross, Bommasandra Industrial Area
560 099 Bangalore, Karnataka"

T: +91 8296962507

Solar PV Surge-Trap SPDs

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