Automate Your DC Power Circuits — TOMZN DC Smart Breaker | SmartSwitch.pk
Pakistan’s energy reality is shifting fast. Rooftop solar installations are spreading from Lahore to Karachi. Off-grid battery systems are powering homes in areas where grid reliability is low. Farms across Punjab are running DC pumps and irrigation systems around the clock. And through all of it, one common frustration persists: managing DC power systems manually is time-consuming, unreliable, and completely unnecessary in 2025.
The TOMZN TOB9DC-63WIFI DC Smart Breaker, now available at SmartSwitch.pk, solves that problem entirely. This is not a repurposed AC smart switch. It is a dedicated DC Smart Breaker, engineered from the ground up for the unique electrical demands of direct current systems — and paired with intelligent Wi-Fi scheduling that works automatically, even when you are not around.
At SmartSwitch.pk, we specialise in smart home automation solutions that genuinely improve daily life. The TOMZN DC Smart Breaker is exactly that — a product that brings your DC infrastructure into the same intelligent, automated world as the rest of your smart home.
Why You Cannot Use an AC Smart Switch for DC Power
This is the most important thing to understand before buying any smart switching device for a DC system. Standard AC relays and smart switches are not designed for direct current. AC power naturally crosses zero volts 50 times per second — this zero-crossing point makes arc extinction simple and contact erosion manageable. DC current has no zero-crossing point. Arcs burn harder, last longer, and degrade switch contacts far faster in DC environments.
Using an AC smart switch in a DC circuit is not just inefficient — it is dangerous. The TOMZN DC Smart Breaker is rated specifically for DC 8V to 90V, giving it proper arc suppression and contact design for every common battery voltage used in Pakistan:
- 12V — Car batteries, small solar systems, portable power stations
- 24V — Mid-size solar setups and UPS battery banks
- 48V — Large off-grid solar and commercial battery storage
- 72V — High-voltage battery packs and EV charging applications
The right tool for the right job means safer operation, longer equipment life, and zero surprise failures. For a deeper understanding of DC vs AC electrical systems, see this overview of DC circuits on Electronics Hub.
Smart Timer Automation — Set It Once, Run Forever
The TOMZN DC Smart Breaker connects to the globally trusted Tuya Smart Platform and Smart Life app over a standard 2.4GHz Wi-Fi network. No proprietary hub. No monthly fee. Just download the free app, complete a one-minute pairing process, and your automation is ready to build.
Please Note: This DC Smart Breaker is built for on-site scheduling and automation — not live remote switching. You configure your timers and automation rules through the app, and the breaker executes them automatically on schedule — independently, without requiring active app use.
Three automation modes are available:
1. Fixed Daily Schedule Set the breaker to switch On at a specific time each morning and Off each evening — automatically, every day. The most popular use case: disconnect non-essential DC loads at sunset to protect your battery bank from overnight discharge, and reconnect them at sunrise when charging begins again.
2. Countdown Timer Need to run a DC water pump, ventilation fan, or filtration system for an exact duration? Set a countdown — 15 minutes, 2 hours, whatever the job requires — and the breaker cuts power automatically when time expires. No manual monitoring, no wasted electricity.
3. Loop / Cycle Timer The standout feature for agricultural and industrial users. Define a duty cycle — On for X minutes, Off for Y minutes — and the breaker repeats it indefinitely. Perfect for drip irrigation solenoids, fish farm aeration pumps, cooling fans in solar inverter enclosures, or any DC load that benefits from a regular cycle. This is automation that works 24 hours a day without any intervention.
You can explore more smart automation possibilities across our full smart home automation collection at SmartSwitch.pk.
Built for Pakistan’s Load Shedding Reality — Relay Status Memory
Every Pakistani with a solar or battery system knows the frustration: load shedding trips, power returns, and now your system is in completely the wrong state. The TOMZN DC Smart Breaker solves this with a fully customizable Relay Last Status function:
- Restore Last State: The moment power returns, the breaker goes straight back to its previous On or Off position — no manual reset, no intervention needed. Essential for unattended rooftop solar setups.
- Default to Off on Restore: For sensitive or high-draw equipment, configure the breaker to always start in the Off position after a power cut — requiring a deliberate action to re-energize. Your equipment stays protected until you are ready.
In a country where load shedding can happen multiple times daily in some areas, this is not a nice-to-have feature. It is essential infrastructure. Browse our other WiFi breakers and smart home devices at SmartSwitch.pk to build a fully automated energy setup.
Compact, Tough, and DIN Rail Ready
The TOB9DC-63WIFI is a 1P (Single Pole) DIN rail device that slots directly into any standard distribution box or solar combiner panel. Small in size, serious in specs:
| Specification | Detail |
|---|---|
| Rated Current | 63A |
| Voltage Range | DC 8V – 90V |
| Mechanical Life | 100,000+ operations |
| Operating Temperature | -25°C to +70°C |
| Connectivity | 2.4GHz Wi-Fi (Tuya / Smart Life) |
| Mounting | 35mm DIN Rail (1P) |
Whether your control box is baking on a Lahore rooftop in July or sitting in a cold basement battery room in January, this DC Smart Breaker performs reliably without complaint.
No Energy Monitoring — Full Transparency
At SmartSwitch.pk, we believe in honest product descriptions. The TOMZN TOB9DC-63WIFI is optimized for switching and scheduling only — it does not include live voltage/current metering, energy consumption monitoring, or over-voltage protection. Its job is to be a robust, reliable, schedule-driven DC switching device — and it does that job better than anything else in its class. If you need energy monitoring, check our 63A WiFi Smart Breaker with Energy Meter which includes full metering and leakage protection.
Who Is This DC Smart Breaker For?
Solar System Owners — Automate DC load management to protect battery life and maximize solar efficiency without daily manual effort
Farmers & Agricultural Users — Run drip irrigation, aeration pumps, and water systems on precise loop timer schedules
RV & Vehicle Owners — Schedule DC cabin lighting, water pumps, and ventilation fans on automatic timers
Industrial & Workshop Users — Automate DC motors, test rigs, and prototype equipment with countdown or cycle timers
Shop Smart at SmartSwitch.pk
Every product at SmartSwitch.pk is backed by our 30-Day Warranty, Cash on Delivery option, and 1–3 Day delivery across Pakistan. We are a dedicated smart home automation store — not a general marketplace — which means every product we stock is chosen specifically because it works, lasts, and delivers real value to Pakistani homes and businesses.
The TOMZN 63A DC Smart Breaker is the reliable, modern, and intelligent way to manage your DC 8–90V circuits. Stop switching manually. Start automating smartly.
Reviews
There are no reviews yet.