Shelly Pro 3EM 3CT63
#6 in Whole-homeFull review
A tidy 63A three-phase meter for small sub-panels.
Amazon $150.99$150.99
None in box (up to 3)
3.0/5
Only worth it if your service is above 120A and the 400A sensors are confirmed with the seller.
- None in box (up to 3)Circuits
- ±1%Accuracy
- 5 yearsWarranty
Check price at Amazon$329.99
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Rated for larger 400A services (per the title)
- Five-year warranty
Cons
- The listing contradicts itself on the CT rating
- Twice the price of the 120A version
The Shelly Pro 3EM family
Every Shelly Pro 3EM model we rank, smallest first. Ratings compare each against its own type.
| Model | Circuits | Rating | Price |
|---|---|---|---|
| Shelly Pro 3EM 3CT63 | None in box (up to 3) | 3.1/5 | $150.99 |
| Shelly Pro 3EM 120A | None in box (up to 3) | 3.4/5 | $153.33 |
| Shelly Pro 3EM 400A (this one) | None in box (up to 3) | 3.0/5 | $329.99 |
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | Pro 3EM (400A) |
|---|---|
| Monitoring | |
| Branch circuits included | None in box (up to 3) |
| Most circuits supported | 3 |
| Electrical systems | 3-phase |
| Solar / net metering | Yes |
| Claimed accuracy | ±1% |
| Connectivity | |
| Connection | Wi-Fi, LAN, Bluetooth |
| Build | |
| Warranty | 5 years |
Alternatives in this type
Shelly 3EM-63W Gen3
#7 in Whole-homeFull review
A budget three-phase meter for a small installation.
Amazon $114.99$114.99
None in box (up to 3)
Emporia Vue 3 (no branch sensors)
#9 in Whole-homeFull review
The cheapest way into Emporia: whole-home numbers now, circuit sensors as you need them.
Amazon $99.99$99.99
None in box (up to 16)Cloud app±2%
Compare
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