PV SPD catalogue - Cooper Bussmann · Inflammability class according to UL 94 V0 V0 CTI According to IEC 112 > 600 > 600 Connection Terminal blocks / Rail mountable NS 35 Terminal

PV protective solutions

for solar PV applications

PV SPD catalogue

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2 EATON PV SPD catalogue

The need forPV protection

Photovoltaic installations are key sources

of renewable energy across the world

and are increasing both in terms of size

and number. The installations have a

number of challenges which arise from

their exposed nature and vast collection

areas. The unique nature of the PV

installations makes them vulnerable to

overvoltage surges from lightning strikes

and static discharges. The core challenge

is protecting these installations against

direct and indirect lightning strikes which

present a high risk of causing damage.

The effects of direct or indirect lightning

strikes making it into the electrical

system can be catastrophic. If significant

damage is caused to the installation then

the operator is faced with high repair

costs to the equipment and a loss of

revenue as a result of the loss of output.

As a result of this it is essential that the

surges are intercepted before they take

down the entire system by damaging the

PV arrays, charge controller / inverter and

combiner boxes.

Bussmann is able to mitigate

against these threats by providing a

comprehensive protective solution to the

customer. A range of certified PV DC

surge protective devices is available to

safeguard the electrical system of the

PV installation, preventing damage. In

addition to the surge protection devices,

Bussmann has a large product portfolio

covering the complete PV protective

solution; including AC surge protection,

PV fuses and a Combiner Box solutions.

3EATON PV SPD catalogue

PV system overviewTo ensure full system protection against the propagation

of over voltage surges throughout the PV installation it is

important to select the correct Surge Protection Device

(SPD) for each part of the system in the DC, AC and

data-line networks. The network diagram and table

helps to identify the key areas of SPD protection.


Look-up table LV Protection

Inverter Protection

Array Protection

Product Line String Protection

DC PV T1/PV T2 - High PerformanceThese combined PV T1/ PV T2 devices are certified to provide protection for 600VDCor 1000VDC systems and up to 1000ADC Iscpv. 3 3 3

DC PV T2The PV T2 devices are specifically designed for use within 600V or 1000VDC systems with an Iscpv up to 160ADC. 3

DC PV T2 - High PerformanceHigh Performance PV T2 designed for high PV currents up to 1000ADC Iscpv withoperating voltages of 600VDC or 1000VDC. 3 3 3

Data lineThe Data line range of surge protection devices are specifically designed for commu-nication systems typically found in PV systems, with 4-wire , BNC and RJ45 options. 3 3 3

AC T1/2 and T2The AC range of devices are suitable for T1&T2 or T2 protection of the LV distribution panels and auxiliary equipment with voltages from 75VAD to 580VAC. 3 3 3


DescriptionThis range of modular SPDs are suitable for use within 600Vdc or 1000Vdc systems and provide combined PV T1/PV T2 protection. The heavy duty metal oxide varistors provide higher energy dissipation necessary for combined lightning and surge protection.

The IP20 finger safe construction has an operating temperature range from –40°C to +80°C, increasing the operational capability and geographical scope which the SPD devices can be installed in.

Tested to 1000A Iscpv these combined PV T1/PV T2 SPDs are suitable for use at all levels of the DC element of the photo-voltaic system.

Standard Features

• Modular design.

• Keyed plugs and base elements protect against mismatching.

• Local and remote monitoring.

• DIN rail mountable.

• Iscpv = 1000A.

PV T1 / PV T2 DC SPD


Part number SPPVT12-06-2-PE SPPVT12-10-2-PE

Part number (with remote indicator) SPPVT12-06-2-PE-AX SPPVT12-10-2-PE-AX

Nominal PV System voltage 600 VDC 1000 VDC

Max. continuous operating voltage UCPV

720 VDC 1050 VDC

Open circuit voltage under standard test conditions UOC STC

≤ 600 VDC ≤ 875 VDC

Short circuit current rating ISCPV

1000A 1000 A

SPD Overload behaviour mode OCM (open circuit mode) OCM (Open Circuit Mode)

Class of test according to EN 50539-11 PV T1/ PV T2 PV T1 / PV T2

Nominal discharge current In (8/20)μs: 15 kA 15 kA

Max. discharge current Imax

(8/20)μs: 40 kA 40 kA

Total discharge current Itotal

(8/20) μs: 40 kA 40 kA


(10/350) μs 7 kA 5 kA

Impulse discharge current Iimp

(10/350) μs 5 kA 5 kA

Voltage protection level Up (L+/L-) - PE ≤ 2.6 kV ≤ 3.5 kV

Limiting voltage Ures

(8/20) (L+/L-) - PE at In

≤ 2.6 kV ≤ 3.5 kV

at 5 kA ≤ 2.0 kV ≤ 2.9 kV

at 10 kA ≤ 2.3 kV ≤ 3.2 kV

at 20 kA ≤ 2.8 kV ≤ 3.7 kV

at 30 kA ≤ 3.1 kV ≤ 4.1 kV

at 40 kA ≤ 3.6 kV ≤ 4.6 kV

Response time tA

≤ 25 ns ≤ 25 ns

Max. required series fuse Not required Not required

Continuous operating current ICPV

< 20 μA < 20 μA

Rated load current IL

80 A 80 A

Residual current IPE

< 20 μA DC / 350 μA AC < 20 μA DC / 300 μA AC

Standby power consumption PC

< 20 mVA < 25 mVA

Temperature range -40°C to +80°C -40°C to +80°C

Humidity range 5% … 95% 5% … 95%

Altitude ≤ 3000 m ≤ 3000 m

Degree of protection according to IEC 61643-11:2011 IP20 IP20

Air clearances and creepage distances according to EN 50539-11

Degree of pollution 2 2

Overvoltage category III III

Insulating material

Housing plug/base element PA 6.6 / PBT PA 6.6 / PBT

Inflammability class according to UL 94 V0 V0

CTI According to IEC 112 > 600 > 600

Connection Terminal blocks / Rail mountable NS 35 Terminal blocks / Rail mountable NS 35

Fine-/solid strand/ AWG 1.5 - 25 mm²/ 1.5 - 35 mm²/ 15-2 1.5 - 25 mm²/ 1.5 - 35 mm²/ 15-2

Terminal blocks 1.5 - 16 mm² with spade lug terminal M6 1.5 - 16 mm² with spade lug terminal M6

Thread / torque / strip length M5/ 4.5 Nm/ 16 mm M5/ 4.5 Nm/ 16 mm

Remote indicator contact (..AX parts only)

Switching function Single pole changeover contact Single pole changeover contact

Connection method Pluggable MC 1.5/3 ST Pluggable MC 1.5/3 ST

Wire fine/solid strand/AWG 0.14-1.5mm2 / AWG 30-16 (CSA) 30-14 (UL) 0.14-1.5mm2 / AWG 30-16 (CSA) 30-14 (UL)

Thread / torque / strip length M2 / 0.25 Nm / 7 mm M2 / 0.25 Nm / 7 mm

Max admissible operating voltage 250 VAC / 30 VDC 250 VAC / 30 VDC

Max admissible power AC 1.5 A / 250 VAC 1.5 A / 250 VAC

Max admissible power DC 1.5 A / 30 VDC 1.5 A / 30 VDC

Min admissible power 5 mA / 5 V 5 mA / 5 V

Certified according to EN 50539-11 EN 50539-11


DescriptionDesigned specifi cally for PV solar applications, this range of modular PV SPDs are suitable for use within 600Vdc or 1000Vdc systems. They provide fast and reliable protection against indirect lightning strikes and voltage surges. The SPDs contain integrated indication of device status with the option for remote indication helping system operators ensure continuous protection.

The IP20 finger-safe construction has an operating temperature range from -40°C to +80°C, increasing the operational capability required for PV environments.

Certified to EN 50539-11 these devices provide effective PV Type 2 protection of the DC element of the photovoltaic system from indirect lightning strikes and surges.

Features for the T2 Standard SPD

• ISCPV = 160A

• Modular design.




Features for the T2 High Performance SPD

• ISCPV = 1000A

• Modular design.

• Keyed plugs and base elements protectagainst mismatching.



PV T2 standard / high performance


PV T2 high performance

Part number SPPVT2H-06-2-PE SPPVT2H-10-2-PE

Part number (with remote indication) SPPVT2H-06-2-PE-AX SPPVT2H-10-2-PE-AX

Nominal PV System voltage 600 VDC 1000 VDC


800 VDC 1170 V DC


≤ 670 VDC ≤ 970 V DC


1000 A 1000 A

SPD Overload behaviour mode OCM (Open Circuit Mode) OCM (Open Circuit Mode)

Class of test according to EN 50539-11 PV T2 PV T2



(8/20)μs: 40 kA 40 kA


(8/20) μs: 40 kA 40 kA

Voltage protection level Up (L+ / L-) - PE ≤ 2.7 kV ≤ 3.7 kV


(8/20) (L+ / L-) - PE at 1A

≤ 2.7 kV ≤ 3.7 kV

at 2 kA ≤ 1.9 kV ≤ 2.7 kV

at 5 kA ≤ 2.2 kV ≤ 3.1 kV

at 10 kA ≤ 2.5 kV ≤ 3.5 kV

at 20 kA ≤ 2.9 kV ≤ 4.0 kV

at 30 kA ≤ 3.4 kV ≤ 4.6 kV

at 40 kA ≤ 3.8 kV ≤ 5.0 kV

Response time tA

≤ 25 ns ≤ 25 ns



< 20 μA < 20 μA


80 A 80 A




< 20 mVA < 25 mVA


Humidity range 5% … 95% 5% … 95% rel

Altitude ≤ 3000 m ≤ 3000 m



degree of pollution 2 2

overvoltage category III III

Insulating material

housing plug/base element PA 6.6 / PBT PA 6.6/ PBT

inflammability class according to UL 94 V0 V0



Fine-/solid strand/ AWG 1.5 - 25 mm²/ 1.5 - 35 mm²/ '15-2 1.5 to 25 mm²/ 1.5 to 35 mm²/ 15-2

Terminal blocks 1.5 - 16 mm² with spade lug terminal M6 1.5 to 16mm² with spade lug terminal M6

Thread/torque/strip length M5/ 4.5 Nm/ 16 mm M5/ 4.5 Nm/ 16mm












Part number SPPVT2-06-2-PE SPPVT2-10-2-PE

Part number (with remote indication) SPPVT2-06-2-PE-AX SPPVT2-10-2-PE-AXNominal PV System voltage 600 VDC 1000 VDC


800 VDC 1170 V DC


≤ 670 VDC ≤ 970 V DC


160 A 160 A

SPD Overload behaviour mode OCM (Open Circuit Mode) OCM (Open Circuit Mode)

Class of test according to EN 50539-11 PV T2 PV T2



(8/20)μs: 40 kA 40 kA


(8/20) μs: 40 kA 40 kA

Voltage protection level Up (L+ / L-) - PE ≤ 2.7 kV ≤ 3.7 kV


(8/20) (L+ / L-) - PE at 1A

≤ 2.7 kV ≤ 3.7 kV

at 2 kA ≤ 1.9 kV ≤ 2.7 kV

at 5 kA ≤ 2.2 kV ≤ 3.1 kV

at 10 kA ≤ 2.5 kV ≤ 3.5 kV

at 20 kA ≤ 2.9 kV ≤ 4.0 kV

at 30 kA ≤ 3.4 kV ≤ 4.6 kV

at 40 kA ≤ 3.8 kV ≤ 5.0 kV

Response time tA

≤ 25 ns ≤ 25 ns



< 20 μA < 20 μA


80 A 80 A




< 20 mVA < 25 mVA


Humidity range 5% … 95% 5% … 95% rel

Altitude ≤ 3000 m ≤ 3000 m



degree of pollution 2 2

overvoltage category III III

Insulating material

housing plug/base element PA 6.6 / PBT PA 6.6/ PBT

inflammability class according to UL 94 V0 V0



Fine-/solid strand/ AWG 1.5 - 25 mm²/ 1.5 - 35 mm²/ '15-2 1.5 to 25 mm²/ 1.5 to 35 mm²/ 15-2

Terminal blocks 1.5 - 16 mm² with spade lug terminal M6 1.5 to 16mm² with spade lug terminal M6

Thread/torque/strip length M5/ 4.5 Nm/ 16 mm M5/ 4.5 Nm/ 16mm











PV T2 standard


When the SPD reaches the end of its life and indicates that it needs to be replaced Bussmann is able to provide replacement modules for the full range of DC PV SPDs.

Each plug-in module is key coded and specific for the frame which they clip into. This allows the operator to be certain that the correct module is in place and providing the level of protection which is required.

The modular design makes the replacement of parts quick and efficient. The frame remains wired into the system whilst the modules are replaced.

Standard Features

• ·Keyed plugs, prevent against mismatching.

• ·Easy clip in/ clip out.

• ·Local monitoring built in.

• ·Part number on the front, allows for easy re-ordering.

• ·Thermoplastic enclosure

Plug-in modules

Part number SPPVT12-06 SPPVT12-10 SPPVT2H-10 SPPVT2H-06 SPPVT2-10 SPPVT2-06Nominal PV System Voltage 600 VDC 1000 VDC 1000 VDC 600 VDC 1000 VDC 600 VDC


360 VDC 525 VDC 585 VDC 400 VDC 585 VDC 400 VDC

Open circuit voltage under standard test conditions U

OC STC

≤ 300 VDC ≤ 435 VDC ≤ 485 VDC ≤ 330 VDC ≤ 485 VDC ≤ 330 VDC


1000A 1000A 1000A 1000A 160A 160A

SPD overload behaviour mode OCM(open circuit mode)

OCM (open circuit mode)

OCM(open circuit mode)



OCM(open circuit mode)

Class of test according to EN 50539-11 PV T1/ PV T2 PV T1/ PV T2 PV T2 PV T2 PV T2 PV T2

Nominal discharge current In (8/20)μs 15 kA 15 kA 15 kA 15 kA 15 kA 15 kA


(8/20) μs 40 kA 40 kA 40 kA 40 kA 40 kA 40 kA

Voltage protection level UP (L+/L-) - PE 5 kA 5 kA ≤ 1.9 kV ≤ 1.4 kV ≤ 1.9 kV ≤ 1.4 kV

Limiting voltage (8/20) (L+/L-) - PE at In

≤ 1.4 kV ≤ 1.8 kV ≤ 1.9 kV ≤ 1.4 kV ≤ 1.9 kV ≤ 1.4 kV

At 2 kA ≤ 1.0 kV ≤ 1.4 kV ≤ 1.4 kV ≤ 1.0 kV ≤ 1.4 kV ≤ 1.0 kV






Response time tA

≤ 25 ns ≤ 25 ns ≤ 25 ns ≤ 25 ns ≤ 25 ns ≤ 25 ns

Max. required series fuse Not required Not required Not required Not required Not required Not required


< 20 μA < 20 μA < 20 μA < 20 μA < 20 μA < 20 μA


- - - - - -


< 10 mVA < 15 mVA < 15 mVA < 10 mVA < 15 mVA < 10 mVA

Temperature range -40°C to +80°C -40°C to +80°C -40°C to +80°C -40°C to +80°C -40°C to +80°C -40°C to +80°C

Humidity range 5% … 95% 5% … 95% 5% … 95% 5% … 95% 5% … 95% 5% … 95%

Altitude ≤ 3000 m ≤ 3000 m ≤ 3000 m ≤ 3000 m ≤ 3000 m ≤ 3000 m

Degree of protection according toIEC 61643-11: 2011

IP20 IP20 IP20 IP20 IP20 IP20

Contamination level 2 2 2 2 2 2

Surge voltage category III III III III III III

Housing plug/ base element PA 6.6 / PBT PA 6.6 / PBT PA 6.6 / PBT PA 6.6 / PBT PA 6.6 / PBT PA 6.6 / PBT

Inflammability class according to UL 94 V0 V0 V0 V0 V0 V0

CTI according to IEC 112 > 600 > 600 > 600 > 600 > 600 > 600

Certified according to EN 50539-11 EN 50539-11 EN 50539-11 EN 50539-11 EN 50539-11 EN 50539-11


Bussmann can provide a range of AC surge protection devices suitable to provide Type 1, Type 1&2 and Type 2 protection for the AC side of the PV system for auxiliary equipment and AC LV distribution panels.

The AC SPDs provide quick and efficient protection against the effects of overvoltages within AC power systems. Manufactured from thermoplastic, these SPDs are available from 75 to 580VAC and provide protection for within powered monitored combiner boxes, the inverter, and computer equipment used for monitoring and control.

Standard Features

• Modular design.




AC SPDs—Overview

System voltage 75—580 VAC

Number of poles 1, 1+NPE, 2, 3, 3+NPE, 4

Modular design Yes, replacement modules available

Degrees of protection Type 1 , Type 1&2, Type 2

Operating temperature range* -40°C to +70°C

Remote monitoring available Yes

IP rating IP40

Product warranty 2 years

Enclosure material Thermoplastic UL 94 V2

Location category Indoor

Mounting Quick fastening on DIN rail according to IEC/ EN 60715

Cross sectional area (min.)* 4mm²

Cross sectional area (max.)* 25mm²

* Model dependent


Today many medium and large size PV systems incorporate a variety of communication systems to monitor system performance or provide security and surveillance. These communication systems also need to be adequately protected from potentially damaging overvoltage surges.

The Bussmann range of data-line SPDs are specifically designed to provide surge protection for 2-wire and 4-wire RS-485 interfaces, RJ45 communications and BNC for video configurations.

Importantly, installing this range of SPDs within the system will protect not only the electrical interface but also the wider network and the equipment associated with it.

Data-line SPDs

Twisted pair data cables

Connectors Screw

Voltage 5V, 12V, 24V, 48V, 0-180V

D1 Total lightning impulse current (10/350μs) Iimp 10kA

C2 total nominal discharge current (8/20μs) In 20kA

Grounding DIN-Rail

Applications Measurement, control and regulation, twisted pairs

Test standards IEC 61643-21/ EN 61643-21, UL 447B

RJ45 / Ethernet

Connectors RJ45

Voltage 48V

C2 Nominal discharge current (8/20μs) line-PG In 2.5kA

Grounding DIN-Rail

Applications RJ45 Connector ethernet cables


BNC Coaxial cable

Connectors BNC

Voltage 5V

Nominal discharge current (8/20μs) line-PG In 10kA

Grounding DIN-Rail

Applications BNC Connector coaxial cables and video



Available in a range of sizes and in 1000 & 1500Vdc, Bussmann’s range of fuses are specifi cally designed to provide high quality protection and isolation for photovoltaic array combiners, recombiners and inverters.

These fuse links are capable of interrupting low overcurrents associated with faulted PV systems.

Bussmann by Eaton manufactures completely customisable combiner boxes from 3 to 24 strings, offering a unique product which is developed specifi cally for individual installations. Confi gurable to provide overcurrent fuse protection, overvoltage surge protection, DC switch isolation and full system monitoring with a choice of power supply options.

Specifically designed for the harsh environmental conditions of PV installations the Bussmann by Eaton combiner box provides safe reliable system protection in ambient temperatures up to 50°C.

With a global manufacturing base, Bussmann can design and manufacture customised combiner boxes within competitive timeframes whilst maintaining exceptional levels of quality to your requirement.

Photovoltaic fuse links and fuse holders

Combiner box

Photovoltaic fuse links and fuse holders

Standard IEC 60947-1, 61643-11, 60269-2 and 60269-7, UL Listed and CCC Accredited

Voltage 1000 to 1500 VDC

Current 1 to 630 A

Breaking capacity Up to 50 kA

Operating class gPV

Sizes 10 x 38, 14 x 51, 14 x 65, NH Style and XL Style

Fuse holders CHPV series for 10 x 38 fuse links, SD-D-PV for NH Style, SD-XL-S for XL Style

Applications PV panel, string, array protection

Combiner box

Standard IEC 61439-1 and -2 and IEC 60363-7-712

Voltage Up to 1000 VDC

Current 1 to 32 A

Number of strings 3 - 24 strings (20 A fuse max), 3 - 16 strings (32 A fuse max)

Operating class gPV

IP Rating IP65 (options for IP55)

Enclosure types Glass reinforced polyester (GRP), painted steel, stainless steel

Overcurrent protection confi gurations Positive and negative, positive only, negative only

DC Load isolation DC switch disconnect 25 Adc to 500 Adc or fi xed output

Input connection types Bottom or side entry MC4 connectors or glands

Overvoltage protection options (SPD) PV T1/T2, PVT2, AC T1, T1/T2 & T2. Dataline D1, C2

Monitoring options 8/16/24 string shunt based monitoring.

Communications options 2-Wire modbus

Power supply options External 24 VDC, Internal 240 VAC to 24 VDC, Internal 1000 VDC to 24 VDC

Applications Solar PV applications including: Large scale residential, small to large scale commercial, large scale utility


Frequently asked questions (FAQs)

How does an SPD work?

A surge protector works by momentarily “switching” from an open circuit mode into a low impedance mode and shunting the surge energy to the ground, limiting the overvoltage to a safe level in the process. When the surge event is over the protector returns to its open circuit mode, ready for the next event.

Why does a PV installation require an SPD?

Due to the PV installation’s exposed nature and large collection area, it is increasingly prone to direct and indirect lightning strikes or transient overvoltage conditions. An SPD will prevent damage to the installation, preventing high repair costs to components and lost revenue from loss of output.

Which SPD is suitable to use?

This depends on a variety of factors including the geographical location, the equipment which is being protected and the importance of its operation. The configuration of the Earth and neutral conductors is also critical. Please call Bussmann to discuss your requirements on +44 (0)1509 882699.

What is an MOV?

A Metal Oxide Varistor is a variable resistor typically made up of a large block of zinc oxide grains. They act like semi-conductors, an insulator below the conduction voltage and a low value resistor above it.

In conduction mode, the MOV diverts and dissipates the overvoltage transient to Earth. MOVs generally connect from the line conductors to Earth. The thickness of the MOV determines the clamping voltage and diameter determines the current capacity.

How long does an SPD last?

How long an MOV SPD lasts depends on the frequency and size of the overvoltage event. The greater the transient event, the greater the degradation of the MOV.

What is a modular SPD?

A modular SPD contains modules which can be replaced without replacing the entire SPD unit, making maintenance easy and minimizing time with reduced protection. The modules allow decreased labour and cost which is required for servicing the protector.

How to replace an SPD at the end of life.

Eaton is able to offer replacement plug in modules for each of the parts on offer. The modules clip in and clip out without requiring the whole device to be unwired from the system.


Changes to the products, to the information contained in this document, and to prices are reserved; so are errors and omissions. Only order confirmations and technical documentation by Eaton is binding. Photos and pictures also do not warrant a specific layout or functionality. Their use in whatever form is subject to prior approval by Eaton. The same applies to Trademarks (especially Eaton, Moeller, and Cutler-Hammer). The Terms and Conditions of Eaton apply, as referenced on Eaton Internet pages and Eaton order confirmations.

Eaton Industries Manufacturing GmbHElectrical Sector EMEARoute de la Longeraie71110 Morges, SwitzerlandEaton.eu

© 2014 EatonAll Rights ReservedPrinted in the United KingdomPublication No. BR132002ENJuly 2014

Eaton is a registered trademark.

All other trademarks are property of their respective owners.

Eaton is dedicated to ensuring that reliable, efficient and safe power is available when it’s needed most. With unparalleled knowledge of electrical power management across industries, experts at Eaton deliver customized, integrated solutions to solve our customers’ most critical challenges.

Our focus is on delivering the right solution for the application. But, decision makers demand more than just innovative products. They turn to Eaton for an unwavering commitment to personal support that makes customer success a top priority. For more information, visit www.eaton.com/electrical.

Cooper Bussmann (UK) LtdMelton RoadBurton-on-the-WoldsLE12 5THUnited KingdomTel: +44 (0)1509 882 600www.bussmann.com

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Documents

PV SPD catalogue - Cooper Bussmann · Inflammability class according to UL 94 V0 V0 CTI According to IEC 112 > 600 > 600 Connection Terminal blocks / Rail mountable NS 35 Terminal