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Enphase Energy
Enphase IQ Load Controller – EP-NA-LK02-040
Enphase IQ Load Controller – EP-NA-LK02-040
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$473.72
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Product Overview
The Enphase IQ Load Controller (EP-NA-LK02-040) sheds or prioritizes loads during a grid outage so IQ Battery systems can protect essential circuits longer. It is driven from IQ System Controller auxiliary contacts (Controller 1, 2, 3, or 3G per the datasheet).
Per the Americas datasheet, it can control two loads at 240 VAC or four loads at 120 VAC, in a NEMA type 4X enclosure.
Best For
- Essential-load management on Enphase IQ System Controller 1/2/3/3G systems that need controlled load shedding during backup.
- Outdoor or harsh locations where a NEMA type 4X polycarbonate enclosure is specified.
Key Features & Specifications
| Specification | Details |
|---|---|
| Product type | IQ Load Controller |
| SKU | EP-NA-LK02-040 |
| Load configuration | Two loads at 240 VAC, or four loads at 120 VAC |
| Dedicated-circuit rating | 36 A resistive / 25 A inductive / 3 HP with 45 A OCPD |
| Multi-load branch rating | 32 A resistive / 25 A inductive / 3 HP with 40 A OCPD |
| Enclosure | NEMA type 4X polycarbonate |
| Ambient temperature | −25°C to 40°C |
| Dimensions / weight | 12.58 in × 14.58 in × 5.96 in; 3 kg (6.61 lb) |
| Compliance | UL 1741 |
| Warranty (datasheet) | 5-year |
| Quantity per System Controller | Up to two (datasheet) |
| Source | Enphase IQ Load Controller Americas datasheet DSH-00022-2.0 (May 2024) |
What You May Also Need
Usually required
- IQ System Controller with available auxiliary / dry contacts wired per the QIG.
- Correctly sized OCPD for each controlled load (45 A dedicated or 40 A multi-load branch per ratings above).
May be required
- IQ System Controller 3 or IQ System Controller 3G when building a new backup system.
- Disconnects & Breakers: Branch breakers for the controlled loads.
Optional upgrades
- Monitoring & Control: Related monitoring hardware.
Check current manufacturer documentation before combining components, especially batteries, inverters, communications equipment and system-control hardware.
Important Considerations
- Americas datasheet states compatibility with IQ System Controller models by generation (Controller 1, 2, 3, and 3G) and lists IQ6, IQ7, IQ8, and M Series Microinverters on the same sheet. Confirm the current Enphase matrix for your site.
- Do not exceed the resistive/inductive/HP ratings or the OCPD values on the datasheet.
- Professional installation required. Follow Enphase instructions and the NEC.
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