DIHOOL Smart Circuit Breaker with Adjustable Voltage Protection, 70-200V Low and 140-300V High Cutoff, 1-63A Overcurrent…
DIHOOL
Best for
Best for DIY solar and DC panels
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 2 trusted sources
Current price
$19.89
Updated May 18, 2026 · 1 min read
Sources behind this verdict
6 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, DIHOOL has built a small but visible reputation in DIY solar and battery-bank communities. diysolarforum users report that the breakers 'work well' in informal testing and have survived dead-short trials, and several YouTube product walkthroughs in the supplied signals position the brand around solar disconnect and DC battery applications rather than mains panel replacement. The 12 customizable preset cutoffs (overvoltage 140-300V, undervoltage 70-200V, overcurrent 1-63A) are the headline feature retailer listings emphasize.
What reviewers liked
- Wide adjustable cutoff ranges (voltage and current) make it flexible for DIY solar and DC builds
- diysolarforum reports the units have survived informal dead-short testing
- Inexpensive given the feature set and DIN-rail form factor
- Specifically discussed across solar-focused YouTube channels and forums, with brand familiarity in that niche
Where it falls short
- r/homeassistant high-trust consensus: this is not a code-listed circuit breaker and should not replace breakers in a service panel
- r/SolarDIY post flags an accessible sliding plate that a user found alarming on inspection
- No UL listing or independent lab testing referenced in the supplied signals
- Victron user group commentary questions whether breakers (vs. properly sized fuses) are even appropriate for the DC use case this product targets
Across the reviewers we read, DIHOOL has built a small but visible reputation in DIY solar and battery-bank communities. diysolarforum users report that the breakers 'work well' in informal testing and have survived dead-short trials, and several YouTube product walkthroughs in the supplied signals position the brand around solar disconnect and DC battery applications rather than mains panel replacement. The 12 customizable preset cutoffs (overvoltage 140-300V, undervoltage 70-200V, overcurrent 1-63A) are the headline feature retailer listings emphasize.
The consensus problems are the same as with other Tuya-class DIN-rail devices. r/homeassistant explicitly warns that 'these are not circuit breakers, do not attempt to replace your actual circuit breakers with these', and r/SolarDIY surfaces a specific quality complaint about a sliding plate that exposes contacts a user did not expect to be accessible. A Victron user group post in the supplied signals also questions whether breakers are even the right protection device in a properly fused DC system.
For a solar DIYer using it as a disconnect with monitoring downstream of a properly rated fuse or main breaker, the price and adjustability are the draw. As a primary panel breaker it is not what the community consensus supports.
- 19 Customizable Presets
- Precisely adjust overvoltage (130-300V), undervoltage (80-210V), and overcurrent (1-63A) etc... UP to 19kinds value you can adjust . all values effortlessly using the intuitive interface. For detailed instructions, please refer to the included user manual.
- Ultimate Safety First
- Your peace of mind is our priority. The protector's shell is crafted from highest-grade, fire-resistant PC material that is rigorously tested to prevent fire hazards, ensuring complete protection for your family and home.
- Your Ultimate All-in-One Shield
- Experience peace of mind with complete protection from the three major power threats: overcurrent, overvoltage, and undervoltage. It’s the dedicated guardian your expensive electronics deserve.Automatically disconnects power to prevent fire and equipment damage.
- Smart Auto-Recovery
- No manual intervention is needed. Once power conditions stabilize and return to safe, normal levels, the system intelligently and automatically restores the electricity supply.
- Universal DIN Rail Mount
- Features a quick-attach design for easy installation on standard 35mm DIN rails, perfect for organizing electrical panels and industrial control cabinets.
- 【The Ultimate Shield for Your Valuables】Why risk damage? Our protector actively defends a vast array of equipment. From preventing industrial motor burnout and keeping your home's lighting system stable to protecting your gaming PC and kitchen appliances from sudden surges, it offers unparalleled peace of mind. Install it once and secure your entire electrical ecosystem.
I've tested continuity with a multimeter which was fine, but I doubt this should be accessible.
These are not circuit breakers, do not attempt to replace your actual circuit breakers with these. What they are is DIN rail mountable relays for controlling a ...
Trust tier reflects our editorial assessment of the source, not the individual quote. Hover for the rationale. See how we tier sources →
“DIHOOL Solar Disconnect Box Review” · 4 String 30A DC ...
If the consensus convinced you
Check current price on Amazon
Pricing and availability change frequently. Tap through to confirm before buying.