Description
Key Benefits
- Securely mounts microinverters, power optimizers, and accessories to K2 CrossRail systems.
- Compatible with CrossRail 44-X, 48-X, 48-XL, 80, and MiniRail profiles.
- Includes serrated M8x20 hex head bolt and MK3 slot nut for quick assembly.
- Constructed from corrosion-resistant stainless steel for rooftop durability.
- Vibration-resistant fastening ensures stability under wind and thermal loads.
- Slide-in MK3 slot nut allows easy insertion and repositioning within rails.
- Designed for fast installation with strong mechanical bonding.
Best Uses
Tech Specs
| Spec | Value |
|---|---|
| Model | 4000629-H-US |
| Description | CR Micro, Optimizer & Accessories Mounting Kit |
| Included Hardware | M8x20 Serrated Hex Head Bolt, MK3 Slot Nut |
| Material | Stainless Steel |
| Finish | Mill |
| Rail Compatibility | CrossRail 44-X, 48-X, 48-XL, 80, MiniRail |
| Primary Application | Mounting microinverters, optimizers, accessories |
| Estimated Weight | ~0.2 lbs per kit |
| Warranty | 25 Years |
Warranty
Important: Warranty terms may vary based on installation conditions and system configuration. See manufacturer documentation for full details.
More Info
The K2 Systems 4000629-H-US mounting kit offers a reliable solution for attaching microinverters, power optimizers, and other accessories directly to K2 CrossRail systems.
Its stainless steel construction and mill finish provide excellent corrosion resistance suitable for harsh rooftop environments.
The included serrated M8x20 hex head bolt and MK3 slot nut enable quick and secure assembly with vibration-resistant fastening.
Compatible with all major K2 CrossRail profiles, including 44-X, 48-X, 48-XL, 80, and MiniRail, this kit supports a wide range of installation needs.
The slide-in MK3 slot nut design allows smooth insertion and repositioning within the rail channel, facilitating flexible accessory placement.
K2 Systems is a German-based solar mounting specialist known worldwide for durable, customizable racking solutions engineered for efficient assembly and robust lifespan.
This mounting kit is ideal for both new installations and retrofits, supporting module-level power electronics from brands like Enphase and SolarEdge.





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