EKU5-T2-40 Type 2 Surge Protective Device (SPD) | 40kA Maximum Discharge Capacity
Why Quality Matters?
Grouped by product family for cleaner RFQ selection: one page shows the available variant SKUs and key specification choices without creating duplicate product pages.
Poles:
Variant SKU:
RFQ inputs
Quantity, destination, certificate needs.
QC proof
Inspection and document review before shipping.
Export ready
Packaging and mixed-container planning.
Procurement Snapshot
Commercial details are confirmed by SKU, quantity and destination at RFQ stage.
RFQ checklist
Send these points with your inquiry for faster pricing.
Documents to confirm
Often sourced together
Technical Data
Specification values for buyer review and RFQ matching
| Product Family ID | OS-ETK-EKU5-T2-40 |
|---|---|
| Variant SKU Count | 6 |
| Supplier | ETK |
| Supplier Model | EKU5-T2-40 |
| Product Type | Surge Protective Device |
| Available Voltage Ratings | 150, 275, 320, 385, 440V AC |
| Available Poles | 1P / 1P+NPE / 2P / 3P / 3P+NPE / 4P |
| Rated Voltage | 150, 275, 320, 385, 440V AC |
| Protection Degree | IP20 (built-in) |
| Iec Category | Type 2 |
| Maximum Discharge Current | 40kA |
| Nominal Discharge Current | 20kA |
| Poles | 1P, 2P, 3P, 4P, 1P+NPE, 3P+NPE / 1P / 1P+NPE / 2P / 3P / 3P+NPE / +1 more |
| Protection Degree | IP20 (built-in) |
| Rated Voltage | 150, 275, 320, 385, 440V AC |
| Standard | IEC/EN61643-11 |
Product Overview
40kA discharge capacity makes this the highest-rated Type 2 AC SPD in the range, providing maximum protection for main distribution boards in high-lightning areas or where the protected equipment is surge-sensitive. Six pole configurations match those of the 20kA variant for direct substitution.
For facilities hosting sensitive electronics, medical equipment, PLC systems, or server infrastructure, 40kA Type 2 is the standard specification at main distribution level. Combine with secondary SPDs at sensitive equipment distribution boards for two-stage protection.
The 40kA AC SPD is the standard specification in commercial switchgear for buildings in high-lightning-incidence climates. OmniSol can supply the 40kA AC SPD as part of a combined BOS protection kit including DC string SPDs and the main AC switchboard SPD, consolidated in one export shipment with no minimum order quantity.
Applications
Inverter output protection
AC distribution boards
EV and PV support circuits
Residential and commercial electrical BOS
Certifications & Compliance
Frequently Asked Questions
When is 40kA Type 2 required instead of 20kA?
Specify 40kA when the site lightning risk zone is high, when sensitive equipment (medical, data, control systems) is protected, when the installation standard requires it, or when the equipment warranty specifies a minimum SPD discharge current.
Can the 20kA and 40kA models be used together in a two-stage SPD system?
Two-stage SPD systems typically use Type 1 at the main entry and Type 2 at distribution boards. Using 40kA at the main distribution and 20kA at secondary boards is a valid design — the higher-energy device absorbs the main surge, leaving less residual surge for the secondary stage.
Technical Guides
Products & Systems
Markets & Services
Need project-specific engineering support?
Free CAD layout, wind/snow load calculations, and BOM review included with project orders.
Related Products
More components from the same application category.
EKU5-T2-20PV Type 2 Surge Protective Device for Solar PV Systems (20kA/DC600-1500V)
EKU5-T2-20PV Type 2 Surge Protective Device for Solar PV Systems (20kA/DC600-1500V) is organized as ...
EKU5-T2-40PV Type 2 Surge Protective Device (SPD) for Photovoltaic Systems
EKU5-T2-40PV Type 2 Surge Protective Device (SPD) for Photovoltaic Systems is organized as one OmniS...
Type 1+2 Combined Protection | 40kA DC SPD | 1500V Solar PV Surge Arrester
Type 1+2 Combined Protection | 40kA DC SPD | 1500V Solar PV Surge Arrester is organized as one OmniS...