The Array Guard | TOMZN 2P DC 1000V Solar Mini Circuit Breaker

East Supplier PlatformSKU:4000529762819-3A

Prezzo:
$16.14

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Disponibilità:
Disponibili (30955 pezzi), pronti per essere spediti

Descrizione

Every solar array is a promise of free energy, and every promise needs a circuit that knows when to say stop.

The Array Guard is a TOMZN 2-pole DC miniature circuit breaker rated for 1000V, built specifically for the direct-current side of solar installations. Between the panels and the inverter, between the battery bank and the load, it sits as the quiet safety gate that isolates a fault before it becomes a fire.

Choose the amperage that matches your string design, from 3A up to 40A, and mount it into your distribution box alongside the rest of the system. CE certification and the TOMZN build standard give it the same engineering language as the inverters and charge controllers it protects.

DC current is harder to interrupt than AC because it does not cross zero naturally; an arc on a solar string can sustain itself and keep burning. That is why a breaker rated for the DC side is not a nicety but a requirement, and why the voltage rating matters as much as the amperage. A 1000V DC rating means this breaker interrupts high-voltage strings cleanly and gives you a visible, throwable disconnect for maintenance that respects the difference between day and night on the array.

Power is generous. Protection is deliberate. Install both.


Key Features

  • ✦ 2-pole DC breaker rated for 1000V solar applications
  • ✦ Multiple amperage options from 3A to 40A to match string design
  • ✦ Isolates panels, batteries, and loads for safe maintenance
  • ✦ CE certified for professional and DIY installations
  • ✦ Compact mini form factor fits standard distribution boards
  • ✦ Clear trip indication for instant fault visibility
  • ✦ DIN-rail mount for fast integration into any panel

Technical Specifications

  • Type: 2P DC mini circuit breaker
  • Voltage Rating: 1000V DC
  • Amperage Options: 3A, 6A, 10A, 16A, 20A, 25A, 32A, 40A
  • Model: TOB7Z-63
  • Brand: TOMZN
  • Certification: CE
  • Application: Solar panel arrays, battery banks, DC loads
  • Origin: Mainland China

Where It Earns Its Place

Off-grid homeowners use them to protect the DC runs between panels, batteries, and inverters, isolating sections for maintenance without killing the whole system. Installers spec them into distribution boxes where a single throw must safely disconnect a string. Van and boat builders trust them to bring the same discipline to 12V and 48V house systems that mains wiring has always had. Even a small balcony array benefits, because the breaker is what makes a rooftop safe to service on a sunny afternoon instead of a gamble.

Questions We Hear Most

Q: Why do solar systems need DC breakers?

DC arcs do not self-extinguish the way AC arcs do, so a fault on a solar string can sustain a dangerous arc. A properly rated DC breaker interrupts that current quickly and safely, protecting both the equipment and the installation.

Q: What amperage should I choose?

Match the breaker to your string's maximum current with a safety margin: the breaker rating should be higher than the normal operating current but lower than the cable's rating. A 20A breaker suits a typical 10A string; larger arrays step up accordingly.

Q: Can I use this for a battery bank?

Yes. The 2-pole DC rating works for battery-to-inverter and battery-to-load circuits. Many off-grid builders keep a spare as a master disconnect between the bank and the inverter.

Q: Is 1000V rating overkill for small systems?

A higher voltage rating is never a problem; it means the breaker can safely interrupt higher-voltage strings if you expand the array later. It also leaves headroom for 48V and 96V systems that carry far less than 1000V.

Q: How do I mount it?

It snaps onto a standard DIN rail inside your distribution box, just like an AC breaker. Wire the DC positive and negative through the poles, with polarity as marked, and test the trip mechanism after installation.

Q: Is it suitable for DIY installation?

Yes, with basic electrical knowledge. The DIN-rail mount and marked polarity make it straightforward, but any permanent wiring should follow your local electrical code and, where required, be checked by a qualified electrician.

Q: How long does shipping take?

Orders are dispatched within 1-2 business days from our fulfillment network. Delivery times vary by destination, typically 7-15 business days to most regions, with tracking provided once your order ships.

Q: What is the return policy?

We stand behind every product we sell. If an item arrives damaged or does not match its description, contact our support team within 30 days of delivery and we will arrange a replacement or refund promptly.

Q: Is this product new and authentic?

Yes. Every item in our catalog is sourced directly from vetted manufacturers and inspected before dispatch. We do not sell refurbished units or factory seconds, and the product you receive matches the listing.

The EastSupplier Promise

Every product on EastSupplier is sourced from vetted manufacturers, inspected before dispatch, and backed by responsive customer support. We built our supply chain on the belief that an order should feel as reliable as the goods it delivers: clear tracking, honest descriptions, and a team that answers when you write.

Customer Reviews

Customer Reviews

Based on 4 reviews
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A
Anna B.
Peace of mind on a sunny day

Now I can service my rooftop array at noon without gambling. A single throw isolates the strings safely. The 1000V DC rating gives confidence the arc will actually interrupt when it needs to.

J
Jorge O.
Good value for DC safety

Used as a battery bank disconnect in my van build. Solid construction and CE marks as stated. Four stars because the terminals are a bit snug with thicker cable lugs, but it works perfectly.

S
Soren L.
The right amp rating for my string

Matched the 20A option to my 10A string with margin and it has been flawless. The clear trip indication let me isolate a section for maintenance without pulling the whole array down.

R
Ryan C.
Proper DC protection for my array

Installed between my panels and inverter on the DC side. The 1000V rating is real and the trip mechanism feels solid. DIN rail mount snapped in cleanly. Exactly what an off-grid build needs.

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