{"id":4707,"date":"2026-10-13T15:20:49","date_gmt":"2026-10-13T07:20:49","guid":{"rendered":"https:\/\/cnkuangya.com\/?p=4707"},"modified":"2026-10-13T15:20:57","modified_gmt":"2026-10-13T07:20:57","slug":"spd-manufacturer-documents-checklist","status":"publish","type":"post","link":"https:\/\/cnkuangya.com\/ja\/blog\/spd-manufacturer-documents-checklist\/","title":{"rendered":"SPD\u30e1\u30fc\u30ab\u30fc\u304b\u3089\u3069\u306e\u3088\u3046\u306a\u66f8\u985e\u3092\u8981\u6c42\u3059\u3079\u304d\u304b\uff1f\u30d0\u30a4\u30e4\u30fc\u5411\u3051\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8"},"content":{"rendered":"\n

A surge protective device (SPD) datasheet may show impressive ratings, but how can you verify that the product actually meets your project requirements?<\/strong><\/p>\n\n\n\n

For electrical distributors, importers, OEM manufacturers, and solar EPC contractors, choosing an SPD supplier involves more than comparing prices or discharge current ratings.<\/p>\n\n\n\n

A supplier may quote a Type 2 SPD with a maximum discharge current of 40 kA. Another may provide a CE-related document, a test report, or an ISO 9001 certificate.<\/p>\n\n\n\n

But these documents do not all prove the same thing.<\/p>\n\n\n\n

A test report may refer to a different model. A certificate may cover only certain configurations. A datasheet may omit critical installation requirements.<\/p>\n\n\n\n

The most important question is not how many documents an SPD manufacturer can provide, but whether those documents demonstrate that the exact product is suitable for your application.<\/strong><\/p>\n\n\n\n

This guide explains nine essential SPD manufacturer documents, how to verify their contents, and what real manufacturer documentation can teach buyers before placing an order.<\/p>\n\n\n\n

Quick Answer: What Documents Should You Request From an SPD Manufacturer?<\/h2>\n\n\n\n

At minimum, buyers should obtain a model-specific datasheet, applicable test evidence, and installation instructions. Additional declarations, certifications, quality records, and commercial documents depend on the product, destination market, and purchasing requirements.<\/p>\n\n\n\n

Table 1. SPD Manufacturer Documentation Checklist<\/h3>\n\n\n\n
Document<\/th>Main purpose<\/th>When to request<\/th><\/tr>
Product datasheet<\/td>Confirm voltage, SPD Type, discharge ratings and model<\/td>Before quotation approval<\/td><\/tr>
IEC\/EN or applicable test report<\/td>Review supporting performance and safety evidence<\/td>Before technical approval<\/td><\/tr>
Declaration of Conformity<\/td>Check declared compliance with applicable regulations<\/td>When required for the destination market<\/td><\/tr>
Third-party certification<\/td>Verify independent certification and covered models<\/td>Where available or required<\/td><\/tr>
Installation manual<\/td>Check wiring, backup protection and installation conditions<\/td>Before sample installation<\/td><\/tr>
Mechanical drawings<\/td>Confirm physical and mounting compatibility<\/td>Before panel design approval<\/td><\/tr>
Factory quality inspection records<\/td>Evaluate production consistency<\/td>Before bulk production<\/td><\/tr>
Product traceability and warranty<\/td>Identify batches and after-sales responsibilities<\/td>Before purchase order<\/td><\/tr>
Commercial and shipping documents<\/td>Confirm shipment, quantity and import information<\/td>During order and shipment<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Not every buyer needs every document.<\/p>\n\n\n\n

For example, a European electrical distributor may prioritize an EU Declaration of Conformity, while a solar EPC contractor may place greater emphasis on photovoltaic-specific test evidence and installation requirements.<\/p>\n\n\n\n

The following sections explain how to decide.<\/p>\n\n\n\n

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1. Product Datasheet: Verify the Actual SPD Ratings<\/h2>\n\n\n\n

A technical datasheet is the starting point for every SPD purchasing decision.<\/p>\n\n\n\n

However, a good datasheet should do more than display a few attractive specifications.<\/p>\n\n\n\n

It should provide enough information to evaluate whether the device is appropriate for the electrical system in which it will be installed.<\/p>\n\n\n\n

Table 2. Essential SPD Datasheet Parameters<\/h3>\n\n\n\n
Parameter<\/th>Meaning<\/th>What buyers should verify<\/th><\/tr>
Uc<\/td>Maximum continuous operating voltage<\/td>Suitable for the electrical system<\/td><\/tr>
Ucpv<\/td>Maximum continuous operating voltage for a PV SPD<\/td>Suitable for maximum PV array voltage<\/td><\/tr>
In<\/td>Nominal discharge current<\/td>Declared value and test waveform<\/td><\/tr>
Imax<\/td>Maximum discharge current<\/td>Applicable Type 2 impulse rating<\/td><\/tr>
Iimp<\/td>Impulse discharge current<\/td>Type 1 capability where applicable<\/td><\/tr>
Up<\/td>Voltage protection level<\/td>Appropriate for equipment protection<\/td><\/tr>
Isccr \/ SCCR<\/td>Short-circuit current rating<\/td>Matches prospective fault conditions<\/td><\/tr>
Iscpv<\/td>PV short-circuit current characteristic<\/td>Appropriate for the PV application<\/td><\/tr>
Protection modes<\/td>Protected conductor combinations<\/td>Compatible with system topology<\/td><\/tr>
Remote signaling<\/td>Status monitoring capability<\/td>Terminal arrangement and contact ratings<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\"KUANGYA
Compare SPD model numbers, voltage ratings, and discharge current specifications before purchasing.<\/figcaption><\/figure>\n\n\n\n

Not all parameters apply to every SPD.<\/p>\n\n\n\n

A Type 2 AC SPD and a Type 1+2 photovoltaic DC SPD can require different technical information.<\/p>\n\n\n\n

Buyers should therefore avoid evaluating all SPDs with a single generic parameter checklist.<\/p>\n\n\n\n

For a deeper explanation of installation and voltage requirements, see our guide to solar inverter built-in and external SPDs<\/a>.<\/p>\n\n\n\n

Real Product Example: Phoenix Contact Type 2 SPD<\/h3>\n\n\n\n

Phoenix Contact publishes a detailed technical specification for its VAL-MS 230\/3+1 FM\/32<\/strong>, order number 2908476<\/strong>.<\/p>\n\n\n\n

Its publicly listed characteristics include:<\/p>\n\n\n\n

Table 3. Published Phoenix Contact SPD Data<\/h3>\n\n\n\n
Parameter<\/th>Published value<\/th><\/tr>
Product<\/td>VAL-MS 230\/3+1 FM\/32<\/td><\/tr>
Order number<\/td>2908476<\/td><\/tr>
SPD Type<\/td>Type 2<\/td><\/tr>
Nominal system voltage<\/td>240\/415 V AC<\/td><\/tr>
Uc, L-N<\/td>275 V AC<\/td><\/tr>
In (8\/20 \u00b5s)<\/td>20 kA<\/td><\/tr>
Imax (8\/20 \u00b5s)<\/td>40 kA<\/td><\/tr>
Up, L-N<\/td>\u2264 1.35 kV<\/td><\/tr>
Up, L-PE<\/td>\u2264 1.6 kV<\/td><\/tr>
Short-circuit current rating<\/td>25 kA<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Source:<\/strong> Phoenix Contact \u2014 VAL-MS 230\/3+1 FM\/32 Official Product Data<\/a><\/p>\n\n\n\n

What makes this example useful?<\/p>\n\n\n\n

The manufacturer does not describe the product simply as a “40 kA SPD.”<\/p>\n\n\n\n

It publishes voltage characteristics, separate protection-mode values, electrical system compatibility, and short-circuit information.<\/p>\n\n\n\n

These details matter when engineers compare products.<\/p>\n\n\n\n

Buyer’s lesson:<\/strong> Two SPDs with the same Imax value may have different protection levels, operating voltages, protection modes, and short-circuit ratings.<\/p>\n\n\n\n

A purchasing decision based only on “20 kA” or “40 kA” is incomplete.<\/p>\n\n\n\n

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2. Test Reports: Verify the Applicable IEC Standard<\/h2>\n\n\n\n

An SPD test report provides evidence concerning the performance and safety evaluation of a tested product.<\/p>\n\n\n\n

However, an IEC reference on a document does not automatically mean that the product has been independently certified.<\/p>\n\n\n\n

The first step is identifying which standard applies.<\/p>\n\n\n\n

Table 4. Important IEC Standards for SPD Buyers<\/h3>\n\n\n\n
Standard<\/th>Application<\/th>Important scope information<\/th><\/tr>
IEC 61643-01:2024<\/td>General SPD requirements<\/td>Common requirements and test methods<\/td><\/tr>
IEC 61643-11:2025<\/td>AC low-voltage power SPDs<\/td>AC circuits rated up to 1,000 V RMS<\/td><\/tr>
IEC 61643-31:2018<\/td>Photovoltaic DC SPDs<\/td>DC side of PV installations up to 1,500 V DC<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Official references:<\/strong><\/p>\n\n\n\n