EKFS-50-2 Rapid Shutdown Device (2-String Firefighter Safety Switch)
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.
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-EKFS-50-2 |
|---|---|
| Variant SKU Count | 1 |
| Supplier | ETK |
| Supplier Model | EKFS-50-2 |
| Product Type | Rapid Shutdown Device |
| Protection Degree | IP65 |
| Input Strings | 2 |
| Operating Temperature | -20°C ~ 70°C |
| Protection Degree | IP65 |
Procurement & BOM Notes
How EKFS-50-2 Rapid Shutdown Device (2-String Firefighter Safety Switch) is sourced
OmniSol sources EKFS-50-2 Rapid Shutdown Device (2-String Firefighter Safety Switch) factory-direct as part of the Rapid Shutdown Device family, quoted against your project quantity, destination port and product family id (OS-ETK-EKFS-50-2). Pricing and lead time are confirmed by SKU and order size at the RFQ stage, and OmniSol can propose a current-equivalent option if the exact variant is unavailable, so the line stays on schedule.
BOM fit
EKFS-50-2 Rapid Shutdown Device (2-String Firefighter Safety Switch) sits between the array and the inverter, so it is specified with the string count, system voltage and protection layout of the project. It ships consolidated with cable, connectors and the rest of the electrical BOS, under one QC report and one document set.
Certification check
Confirm the device standard, breaking capacity and any market-specific listing (IEC or UL) before ordering. OmniSol supplies the datasheet, component brand list and inspection photos.
Product Overview
Two-string rapid shutdown device for rooftop sections where two adjacent strings can share one shutdown unit. Combining two strings in one device reduces wiring runs and enclosure count compared to two separate single-string units while maintaining independent string-level shutdown capability.
Each string connects to its own input terminals — the device handles both strings simultaneously on shutdown signal. IP65 rating allows direct outdoor mounting without additional weatherproof enclosure.
Two-way fuse sets allow independent bus bar protection of two parallel combiner outputs. In systems with battery storage where energy can flow in both directions, confirm that the fuse class and breaking capacity cover the maximum reverse-direction current from the inverter or charger during storage charging cycles.
Applications
PV string and array protection
Combiner box internal protection
Inverter DC input circuits
Utility and C&I solar BOS
Frequently Asked Questions
Can two strings with different Isc values share one EKFS-50-2?
Yes. Each string input is independent — the device handles both regardless of slight current differences. The rated current per string input must not be exceeded. Share both string Isc values at RFQ and we confirm the unit is appropriately rated.
Is rapid shutdown required for ground-mount systems?
NEC rapid shutdown requirements apply to building-integrated and rooftop PV systems. Ground-mount systems not on or attached to a building are typically exempt. Confirm with the local authority having jurisdiction for your specific installation.
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