16A vs 32A EV Charging Reel: Which Rating Do You Need? (2026)
Short answer: Choose 16A for most home overnight charging (up to ~11 kW three-phase). Choose 32A if your wallbox and vehicle support up to 22 kW AC and your breaker is rated accordingly. The reel rating must match the protected circuit ??not exceed it.
Rollkern YSH-EV014 is available in 16A and 32A variants on the product page.
Power reference (three-phase 230 V)
| Rating | Approx. max AC power | Typical use |
|---|---|---|
| 16A single-phase | ~3.7 kW | Older home supplies, PHEVs |
| 16A three-phase | ~11 kW | Most home EVs overnight |
| 32A three-phase | ~22 kW | Workplace turnarounds, large onboard chargers |
Decision guide
- Home + 7.4 kW wallbox: 16A reel sufficient
- Home + 11 kW wallbox: 16A reel (match breaker)
- Home + 22 kW wallbox + vehicle accepts 22 kW AC: 32A reel
- Fleet vans / workplace: Often 32A where infrastructure supports it
Why not always buy 32A?
The chain is only as strong as its weakest link: breaker ??wallbox ??cable/reel ??vehicle onboard charger. A 32A reel on a 16A circuit does not increase speed; it may fail compliance if ratings are mismatched. Order the rating that matches your installed circuit.
FAQ
Does 32A cost more?
32A conductors and components are typically priced higher than 16A ??select only when needed.
Can I upgrade later?
Reels are built for a fixed current rating; plan from wallbox and supply capacity before purchase.
US installations?
North American AC limits differ (often 40 A circuit / 32 A continuous); confirm with electrician and order Type 1 variant if applicable.
Related: Type 2 compatibility ? Install checklist ? Shop Rollkern