Surge Protection Device (SPD) for Solar Power System / Photovoltaic or PV /DC System
Surge Protective Devices (SPDs) provide protection against electrical surges and spikes, including those caused directly and indirectly by lightning. They can be utilized as complete devices or as components within electrical equipment.
Photovoltaic (PV) system converts solar energy into direct current electricity. PV system ranges from small, rooftop-mounted or building-integrated systems with capacities from a few to several tens of kilowatts, to large utility-scale power stations of hundreds of megawatts. The potential impact of lightning events increases with PV system size. At locations with frequent lightning, unprotected PV systems will suffer repeated and significant damages. This results in substantial repair and replacement costs, system downtime and loss of revenue. Properly installed surge protective devices (SPDs) will minimize the potential impact of lightning events.
Sensitive electrical equipments of PV system like AC/DC Inverter, monitoring devices and PV array must be protected by surge protective devices (SPD).
Prosurge provide below PV DC SPDs to meet different customer’s demand,
——- TUV certified, Type 1+Type 2 : Iimp 12.5kA 10/350, Imax 80kA 8/20
——- TUV certified, Type 2 (or T1 +T2): Iimp 7.5kA 10/350, Imax 50kA 8/20
——- UL1449 5th, Type 1CA : Imax 50kA 8/20, In 20kA 8/20
——- TUV / UL approved PCB Mounting SPD modules
——-TUV / UL approved thermal protected MOV for PCB Mounting/Soldering
Class I + Class II / Type 1+ Type 2 Surge Protection Device (SPD) for PV / Solar / DC
Prosurge’s PVB12.5 series is T1 + T2 ( class I + class II) PV DC surge protective deivce (SPD) for location of high risk exposure or LPZ 0-2 building entrances ( IEC 62305-4) to against the damage from direct or close lightning strikes.
With built in PROSURGE high energy MOV, PVB12.5 series PV SPD ensures remarkable lightning current discharge capacity up to 12.5 kA 10/350μs and high reliability. The unique design of thermal protection provides quick thermal response and secure disconnection.
- TUV certified T1+ T2 PV DC SPD per IEC/EN 61643-31 standard.
- 18mm narrow model design, prewired SPDs avaliable for V or Y circuit for common mode & differential mode protection
- Application in Photovoltaic (PV) systems and other DC power system like charging system for electric vehicles etc.
- Degradation failure indication and optional remote signal contact.
- Pluggable module for easy replacement without the need to remove system wiring.
- Comply with EN 50539-11,UL1449 5th, IEEE C62.41,CSA C22.2 standards
- Rating:
- Meet various nominal voltage range: 48Vdc to 1500Vdc
- Max. continuous operating voltage (Ucpv) : 55Vdc to 1500Vdc
- Max. discharge current (8/20μs)：80kA
- Lightning impulse current (10/350μs): 12.5kA
- Short-circuit Current (Iscpv)：1000A
PCB mounting Type 1 + 2 PV SPD modules available
Class II / Type 2 Surge Protection Device (SPD) for PV/Solar/DC
Prosurge PV50 series is a Type 2 (also tested at T1 + T2) SPD (Surge Protective Device) according to IEC 61643-31 or EN 50539-11.
It is designed for photovoltaic system DC side protection against the damage from surges caused by lightning and other electrical sources.
With built in PROSURGE high energy MOV, PV50 series PV SPD tested with Imax 50kA 8/20 and ensures remarkable lightning current discharge capacity up to 7.5 kA 10/350μs and high reliability. The unique design of thermal protection provides quick thermal response and secure disconnection.
- TUV certified T2 (also tested T1+T2) PV DC SPD per IEC/EN 61643-31 standard.
- 18mm narrow model design to save installation space
- Application in Photovoltaic (PV) systems and other DC power system like charging system for electric vehicles etc.
- Low voltage protection level
- Degradation failure indication and optional remote signal contact.
- Pluggable module for easy replacement without the need to remove system wiring.
- Comply with EN 50539-11,UL1449 5th, IEEE C62.41,CSA C22.2 standards
- Rating:
- Nominal DC Voltage: 48Vdc to 1500Vdc
- Surge capacity (8/20 μs)：50kA
- Lightning impulse current (10/350 μs): 4.5kA~7.5kA
- Iscpv：1000A
PCB mounting Type 1 + Type 2 PV SPD modules available
UL 1449 5th DIN-rail Type 1ca SPD for DC Power / Photovoltaic System
Prosurge SPV series is a Type 1ca SPD (Surge Protective Device) according to UL 1449 5th Ed., designed for photovoltaic system DC side protection against the damage from surges caused by lightning and other electrical sources.
- Rating:
- Max. Permitted DC Voltage (Vpvdc): 85-1500Vdc
- Surge capacity (8/20 μs)：50kA
- SCCR：100kA – tested without external CB or fuse
- UL recognized Type 1ca SPD (ANSI/UL1449 4th), Type 2ca SPD (CSA-C22.2 ) for PV/ Photovoltaic system (UL File No. E319871).
- Pluggable design with window fault indication
- Remote alarm signal optional
- Meet worldwide standards: UL 1449 5th, IEC 61643-31: 2018 & EN 50539-11: 2013
- Global patented thermal disconnector design with arc extinguishing device, fail-safe & self-protected, quick thermal response and perfect circuit cut-off function. No additional over-current protection devices required.
PCB mounting Type 1ca PV SPD modules available
PROSURGE has developed a high performance but low cost solution for the industry of PV/DC power electronics, a surge protection module PVTMOV which is size optimization and space efficiency, will be easy integrated on printed circuit boards (PCB) and close to sensitive electronic element inside device, to minimize the potential impact of lightning events.
PROSURGE® PVTMOV employ high energy Metal Oxide Varistor (MOV), and constructed with patented thermal protection and arc extinguishing technology which ensure safe disconnection while faulty current or abnormal voltage happened. It is generally known that the metal oxide varistor (MOV) is an ideal component for limiting surge voltage and current as well as for absorbing energy, but MOV may go into thermal runaway and result in short circuit due to sustained abnormal voltage (TOV) or end of life, that may cause fire hazard and significant losses to customer. Prosurge® surge protection modules have comprehensively improved the safety performance and proven to be excellent fail-safe and self-protected protective devices because of patented technology.
PVTMOV is PCB solderable module, especially for inverters, PV combiner boxes, converters application etc.
Surge Protection for PV System
PV systems are exposed to both direct and indirect lightning events. The impact of lightning events increases with PV system size. Poorly protected PV systems will suffer repeated and significant damages and thus result in substantial repair and replacement costs, system downtime and loss of revenue. Properly installed surge protective devices (SPDs) will minimize the potential impact of lightning events.
Sensitive electrical equipment of PV system like AC/DC inverter, monitoring devices and PV array must be protected by surge protective devices (SPD).
PV System is a victim of lightning and surge damage
Installation of Surge Proteciton Device in PV System
| Prosurge Model | Surge Capacity | Mounting |
| SPV | 50kA per Mode | DIN-RAIL |
| SP | 50kA per Mode | DIN-RAIL |
| PSP | 200kA per phase | Hardwired |
Another Option For Inverter Manufacturer
Besides adopting external SPD, inverter manufacturers can put our UL approval PV SPD module inside your inverter at designing.
Permanent Soldering
Prosurge Surge Protection Device Products Family
Click to explore our extensive surge protection devices and other lightning protection products.
Prosurge Surge Protection Device Products Family
Click to explore our extensive surge protection devices and other lightning protection products.
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