VIOX Electric
Language
English Español Português Français Tiếng Việt Bahasa Indonesia 한국어 Türkçe العربية Deutsch Italiano ไทย 日本語 Polski ဗမာစာ Русский ភាសាខ្មែរ ພາສາລາວ Ελληνικά Čeština Bahasa Melayu اردو Magyar فارسی Tagalog বাংলা

ອຸປະກອນປ້ອງກັນແຮງດັນເກີນ (SPD)

Compare VIOX surge protective devices for AC, DC and solar PV systems by system voltage, pole arrangement and published product characteristics.

Transient protectionLimits surge overvoltage

Pole formatsSingle or multi-pole

AC, DC and PVMatch the system

Discharge ratingຢືນຢັນຕາມຮຸ່ນ

Compare SPD series ຮ້ອງຂໍການສະໜັບສະໜູນດ້ານຮຸ່ນ
VIOX SPD SERIESລະດັບຜະລິດຕະພັນທີ່ເຜີຍແຜ່
VIOX VSP1-C40/2(S) Pluggable Single-Pole SPDVIOX VSP1-C40VIOX VSP1-C40/3(S) Pluggable Multi-Pole SPDVIOX VSP1-C40VIOX VSP1-C40/4(S) Pluggable Multi-Pole SPDVIOX VSP1-C40

What is a surge protective device?

An SPD limits transient overvoltage by diverting surge current away from protected equipment. It is coordinated with the system voltage, earthing arrangement, installation point and upstream protection.

An SPD is not a substitute for overload, short-circuit or sustained overvoltage protection. Device type, maximum continuous operating voltage, discharge-current ratings, pole arrangement and AC or DC suitability must be verified.

Selection guide Compare alternatives
ແຮງດັນໄຟຟ້າປົກກະຕິຂອງລະບົບThe SPD remains connected while the circuit operates within its normal voltage range.
Transient surgeLightning or switching activity creates a short-duration overvoltage event.
Surge limitedThe SPD diverts surge current and limits the voltage according to its characteristics.

SPD Series Overview

Compare published VIOX models using facts already available in product data.

Browse all SPD products

How to choose an SPD

Coordinate the SPD with the electrical system, installation location and backup protection.

AC, DC or solar PV system

Use a device explicitly rated for the circuit type, voltage and earthing arrangement.

SPD type and installation point

Coordinate Type 1, Type 2 or Type 3 protection where required by the system design.

Uc, In, Imax or Iimp ratings

Verify the continuous voltage and surge-current characteristics in the model datasheet.

Pole arrangement and backup protection

Match the wiring configuration and coordinate the specified upstream protective device.

Coordinated surge protection

The required SPD type depends on the installation architecture. Not every VIOX series is available in every class or voltage.

T1Service entrance and lightning-current coordination
T2Distribution-level transient overvoltage protection
T3Fine protection close to sensitive equipment
Read the SPD selection guide

Compare published SPD series

Blank cells mean the value is not available in the current product summary. Open the model page or request its datasheet before specification.

ຕໍ່ລຽນລະບົບPublished voltageຮູບແບບເສົາProduct form
VIOX VSP1-C40——Single-poleSingle-pole
VIOX VSP1-C40——Multi-poleMulti-pole
VIOX VSP1-C40——Multi-poleMulti-pole
VIOX VSP1-C40PV—1000VSingle-poleSingle-pole
VIOX VSP1-C40PV—600VSingle-poleSingle-pole
VIOX VSP1-C40PV—1000VMulti-poleMulti-pole
VIOX VSP1-C40PV—1500VMulti-poleMulti-pole
VIOX VSP1-C40PV—600VMulti-poleMulti-pole

SPD Applications

Typical environments where the exact product characteristics must be verified.

Smart residential building with rooftop solar and connected electrical systems

ອາຄານທີ່ຢູ່ອາໄສ

Distribution-board surge protection coordinated with the residential supply system.

Automated manufacturing facility with industrial robotic systems

ອັດຕະໂນມັດອຸດສາຫະກໍາ

Surge protection for control panels, machines and sensitive industrial electronics.

Utility-scale solar farm with battery energy storage system

ພະລັງງານແສງຕາເວັນ ແລະ ການຈັດເກັບພະລັງງານ

DC and AC SPDs selected around PV string, inverter and storage-system voltages.

ສູນຂໍ້ມູນ ແລະ ໂທລະຄົມມະນາຄົມLayered surge protection for critical power and communication infrastructure.ການປະກອບຕູ້ໄຟຟ້າ ແລະ ການກະຈາຍໄຟModular SPDs integrated with backup protection and earthing architecture.ທາງທະເລ ແລະ ພື້ນທີ່ກາງແຈ້ງAppropriately rated surge protection within exposed electrical installations.

SPD Knowledge & Selection Guides

ບົດຄວາມທັງໝົດ
What Is a Surge Protective Device (SPD)? Working Principle, Types, Ratings, and Selectionນິຍາມ ແລະ ຫຼັກການພື້ນຖານ

ອຸປະກອນປ້ອງກັນໄຟກະຊາກ (SPD) ແມ່ນຫຍັງ? ຫຼັກການເຮັດວຽກ, ປະເພດ, ຄ່າພິກັດ, ແລະ ການເລືອກໃຊ້

ການປຽບທຽບ ແລະ ທາງເລືອກອື່ນໆປະເພດຂອງ SPD: ປະເພດ 1 ທຽບກັບ ປະເພດ 2 ທຽບກັບ ປະເພດ 3 ອະທິບາຍ

SPD Selection Questions

Quick answers for preliminary product-family comparison before detailed circuit verification.

What does an SPD protect against?

An SPD is designed to limit transient overvoltage caused by events such as lightning effects or switching. It does not replace overcurrent or sustained overvoltage protection.

What is the difference between Type 1, Type 2 and Type 3 SPDs?

The types relate to different test duties and installation positions within a coordinated surge-protection system. The required combination depends on the electrical architecture and applicable standards.

Can an AC SPD be used on a solar DC circuit?

No, unless the product documentation explicitly approves that DC voltage and configuration. Solar PV circuits require SPDs selected for their DC operating conditions and polarity arrangement.

Which SPD ratings should be checked?

Check system type, maximum continuous operating voltage, nominal and maximum discharge current or impulse current where applicable, voltage protection level, poles and backup protection.

SPD ຄວນຕິດຕັ້ງຢູ່ໃສ?

Installation position depends on the system design and protection coordination. Keep connections appropriately arranged and follow the product instructions and applicable installation rules.

Need the Right SPD?
Let’s Coordinate the Protection.

Send the system type, AC or DC voltage, pole arrangement, installation position, quantity and target market. VIOX will help identify the relevant published series.

Request SPD Support