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GARO Surge Protector — Series C GPT 300 — 3 + 4-pole - 400V TT / TN-S / TN-C

SKU: 1631861



1.729 kr
1.383 kr eks. mva.
Gladengveien 18, 0661 Oslo
1-3 Working days by post

Only 1.000 kr away from free shipping


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  • Spesielt tilpasset for 400V TN-nettverk
  • Type 2 overspenningsbeskyttelse (sekundærbeskyttelse)
  • For systemer med eller uten distribuert jording
  • Ingen krav til ekstra beskyttelse (jordfeilbryter/ikke brennbart kapsling)

Surge Protector TN-network 400V 3-phase 1-phase

GARO's Surge Protection Device (SPD) can be used in all types of power distribution facilities. It is designed for mounting on a DIN rail and fits under modular cover. Class C / II surge protection devices are specially developed for protection against overvoltage in low voltage systems. Most have replaceable protection modules and the housings are halogen-free. Manufactured from flame-resistant PBT or flame-resistant nylon (depending on the model). All terminals are made of copper; if connecting with aluminium, adapters must be used.

For overhead lines, we have a special protection device called GST.

GARO Surge Protection 2-pole 300 + 350 GPT

Can be used on systems with and without distributed earth.

As of 1.1.2019, surge protection is a mandatory protection in the fuse box when installing a new electrical circuit for charging electric vehicles. This applies to both a new charging point or charging station.

We are required by the regulation on electrical equipment § 21 to inform our customers that all electrical material intended to be included in a permanent electrical installation can only be installed by an authorized and registered installation company.

Technical Details

Application Indoor in fuse box
Power Network TN-S / TN-C
Max Continuous Operating Voltage 300V (AC)
Number of Poles 3- and 4-pole
Type Varistor class C / II
Max gG fuse 250A
Max impulse current (8/20uS) Imax 50kA
Nominal impulse current (8/20us-20ggr) In 20 kA
Residual voltage Up <1.5kV
Torque 4.5 Nm
Operating temperature - 40ºC - + 80ºC
Conductor cross-section Single core 4-35mm².
Stranded / multi-stranded with end sleeve 4-25mm²
Operating temperature -30°C to +50°C
Installation 35mm DIN, in accordance with EN 50022/DIN46277-3
Enclosure material Thermoplastic, UL94 V-0. Self-extinguishing.
Protection class (IP) IP20
Installation width 2 modules, DIN 43880
Thermal disconnector (internal solder fuse) Indication window flag:
Green = normal. Red = fault, replace plug.
Sales packaging 1 piece
Volume 0.194 dm³ (2-pole)
0.292 dm³ (3-pole)
Packaging dimensions 90 x 36 x 60 mm (2-pole)
90 x 54 x 60 mm (3-pole)
Weight 100g (2-pole)
130g (3-pole)
Standards and Approval
IEC61643-11:2011; UL1449 4th
Warranty 2 years

Questions and Answers

Do I need surge protection?

NEK 400:2018, section 722 supply of electric vehicles says the following:
It is now required that the connection point should be protected by a surge protector. This can be a surge protector that is in front of the entire installation.

The reason is that the number of chargeable cars that have had their cars damaged as a result of lightning surges or connection surges is increasing rapidly. The cost of a repair can amount to several hundred thousand and it is not certain that this is covered by the insurance. It is recommended to interrupt and disconnect the charging equipment during thunderstorms.


We are proud of our products and it is important to us that you as a customer are satisfied. Therefore, we provide a 2-year warranty on most of our products, with the exception of consumables. Look for the warranty logo to see what applies to this particular product. Our warranty means that the item should function as expected throughout the warranty period (this in addition to your rights under the Consumer Purchase Act). Read more about the warranty in our purchase terms.

GARO Surge Protector — Series C GPT 300 — 3 + 4-pole - 400V TT / TN-S / TN-C

GARO Surge Protector — Series C GPT 300 — 3 + 4-pole - 400V TT / TN-S / TN-C

1.729 kr