This is the cable kit built for the EG4 BossBox system — the wiring hardware you need to connect your BossBox into the rest of your ESS install. If you're speccing out a BossBox setup, this is the companion cable set for it.
Cable kits like this one are a critical link in any ESS build — the connections between battery, inverter, and distribution hardware carry full system current, and undersized or mismatched cabling is a common cause of field failures. Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
Because detailed specifications for this specific kit were not provided in current manufacturer data, we're flagging every unconfirmed field below rather than guessing. Confirm gauge, length, terminal size, and ampacity rating against your BossBox documentation before you order, or ask us and we'll verify before you order.
- Part Type: Cable Kit, designed for the EG4 BossBox system
- Wire gauge/AWG: [NEEDS VERIFICATION]
- Cable length: [NEEDS VERIFICATION]
- Terminal/lug size: [NEEDS VERIFICATION]
- Ampacity limit: [NEEDS VERIFICATION]
- Voltage rating: [NEEDS VERIFICATION]
- NOT confirmed compatible with non-BossBox EG4 inverters or third-party ESS hardware — do not assume fitment without checking your system's terminal spacing and connector type
Cable kits sold as a matched set are matched for a reason — mixing in a longer run of unknown gauge cable on one leg of a parallel or battery-to-inverter connection creates uneven resistance and voltage drop across conductors that are supposed to be sharing load evenly. Left unchecked, that imbalance shows up as one cable running hotter than its pair, which accelerates insulation breakdown and raises the risk of a loose-connection hot spot turning into thermal runaway at the lug. Before energizing the system, check every lug torque value against the BossBox manufacturer spec with a digital torque wrench — don't eyeball it. This is standard practice under NEC guidance on terminal connections and matches how any qualified electrician verifies a DC power connection before it goes live.
- Sold as a defined kit (EG4BOSSBOXCK) — not a generic universal cable set
- Purpose-matched for BossBox wiring, reducing guesswork versus sourcing individual cables separately
- Single SKU simplifies ordering for a full BossBox cable connection
- Build materials (copper vs. CCA), insulation rating, and jacket type: [NEEDS VERIFICATION]
| Spec | Value | Unit |
|---|---|---|
| Part Type | Cable Kit | — |
| Compatible System | EG4 BossBox | — |
| SKU | EG4BOSSBOXCK | — |
| Price | 535.99 | USD |
| Wire Gauge | [NEEDS VERIFICATION] | AWG |
| Length | [NEEDS VERIFICATION] | ft |
| Terminal Size | [NEEDS VERIFICATION] | — |
| Ampacity | [NEEDS VERIFICATION] | A |
| Voltage Rating | [NEEDS VERIFICATION] | V |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
- Fits: EG4 BossBox system, using SKU EG4BOSSBOXCK
- Does NOT have confirmed fitment with other EG4 inverter/battery models outside the BossBox family
- Does NOT have confirmed compatibility with third-party (non-EG4) inverters or batteries
- Do NOT assume this kit meets a specific ampacity or voltage requirement for your install until verified — see the Resources tab or ask us before you order
| Item | Rating/Listing |
|---|---|
| UL Listing | [NEEDS VERIFICATION] |
| NEC Ampacity Reference | [NEEDS VERIFICATION] |
| IP Rating | [NEEDS VERIFICATION] |
FAQ
What size are the terminal lugs on this cable kit?
Lug size is not specified in available manufacturer data. [NEEDS VERIFICATION]
Is this cable kit rated for 48V systems?
Voltage rating is not specified in available manufacturer data. [NEEDS VERIFICATION]
Does this kit fit any EG4 inverter besides the BossBox?
This kit is named and sold specifically for the EG4 BossBox. Fitment with other EG4 systems is not confirmed in available manufacturer data. [NEEDS VERIFICATION]
What gauge wire is included in this kit?
Wire gauge is not specified in available manufacturer data. [NEEDS VERIFICATION]
Warranty & Registration
Manufacturer warranty terms for this kit were not included in the provided data. Please refer to the "Resources (System Manuals and Warranty)" Tab above on this page for warranty coverage and registration steps. If you can't find what you need there, ask us before you order and we'll confirm the terms with you directly.
