Type 1+2 Combined Protection | 40kA DC SPD | 1500V Solar PV Surge Arrester
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| Product Family ID | OS-ETK-EKU5-T1PLUST2-40PV |
|---|---|
| Variant SKU Count | 1 |
| Supplier | ETK |
| Supplier Model | EKU5-T1PLUST2-40PV |
| Product Type | Surge Protective Device |
| Available Voltage Ratings | 1000, 1500VDC |
| Rated Voltage | 1000, 1500VDC |
| Protection Degree | IP20 (built-in) |
| Iec Category | Type 1+2 |
| Impulse Discharge Current | 6.25kA |
| Maximum Discharge Current | 40kA |
| Nominal Discharge Current | 20kA |
| Poles | 3P |
| Protection Degree | IP20 (built-in) |
| Rated Voltage | 1000, 1500VDC |
| Standard | IEC/EN61643-31 |
| Total Discharge Current | 12.5kA |
Product Overview
Combined Type 1+2 DC surge protection in a single device with 40kA discharge current and IP20 built-in rating for flush installation inside switchboards or combiner enclosures. One device satisfies both lightning (Type 1) and switching surge (Type 2) coordination requirements at a single installation point.
Combined devices simplify the BOM for installations where both protection classes are required, and ensure factory-matched Type 1 and Type 2 coordination without separate device selection.
Combined Type 1+2 devices protect against both direct and nearby lightning strikes from a single device, eliminating the need for separate Type 1 and Type 2 SPDs at the same installation point. Required at the service entrance of structures with an external lightning protection system per IEC 62305-4 coordination requirements.
Applications
PV string and array protection
Combiner box internal protection
Inverter DC input circuits
Utility and C&I solar BOS
Certifications & Compliance
Frequently Asked Questions
When is combined Type 1+2 preferred over separate devices?
A combined device is preferred when installation space is limited, when factory-matched coordination is required, or when the switchboard position must satisfy both Type 1 and Type 2 requirements simultaneously. Separate devices give more flexibility if the two protection classes need to be installed at different points.
Is Type 1+2 DC SPD required for all PV installations?
Type 1 is only required where the building or system has a direct lightning protection system (LPS), or where local code mandates it. For most PV systems without a direct LPS, Type 2 alone is sufficient. Confirm with the project electrical designer.
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