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The Renogy DC Circuit Breaker Box is an indoor enclosure that gathers the breakers and busbars of a residential or commercial solar system into one central, protected location. It makes it possible to isolate individual parts of the system, such as the path between panels and controller, controller and battery, or battery and inverter, for safer operation and maintenance.

The box is built from cold-formed steel with an IP54 rating and a keyed cam lock, and it contains five copper busbars covering PV positive, PV negative, battery positive, battery negative, and grounding. A built-in DIN rail and pre-made mounting holes make it simple to install breakers, and the unit mounts vertically on a wall.

With knockouts for cable entry and both compression and lug terminals on each busbar, it accepts a wide range of wire sizes, helping keep a home solar installation organized and well protected.

What's in the Box

  • 1 x DC Circuit Breaker Box
  • 1 x Key
  • 3 x Labels

Electrical

  • Maximum PV Input/Output Voltage: 250VDC
  • Maximum PV Input/Output Current: 63A per circuit
  • Maximum Battery Input/Output Voltage: 1000VDC
  • Maximum Battery Input/Output Current: 250A
  • Busbar Rated Current: 200A

Busbars & Terminals

  • Number of Poles: 5 (PV positive, PV negative, battery positive, battery negative, grounding)
  • Busbar Material: Copper
  • PV Busbar Terminals: 8 compression, 1 lug
  • Battery Busbar Terminals: 4 compression, 2 lug
  • Grounding Busbar Terminals: 20 compression, 1 lug
  • Busbar Screws: M5 (compression), M8 (lug)
  • Recommended Terminal Torque: 26 in·lbs / 2.9 N·m (compression); 106 in·lbs / 12 N·m (lug)
  • PV/Grounding Conductor Size: 14 – 6 AWG (compression); 12 – 4 AWG (lug)
  • Battery Conductor Size: 14 – 6 AWG (compression); 12 AWG – 2/0 AWG (lug)
  • Conductor Size: 4 AWG – 4/0 AWG

Enclosure

  • Material: Cold-formed steel
  • Protection Rating: IP54
  • Security: Keyed cam lock
  • Mounting: Vertical wall mount
  • Installation Environment: Indoor
  • Knockouts: 1.99 in (x4), 1.12 in (x4)
  • Dimensions: 19.7 x 13.8 x 7.9 in (500 x 350 x 200 mm)
  • Weight: 22.7 lb

  • Centralized breaker management for sectional system control
  • Built-in DIN rail and mounting holes for easy breaker installation
  • Five copper busbars for PV, battery, and grounding connections
  • Cold-formed steel enclosure with keyed cam lock
  • IP54-rated for indoor installations
  • Compression and lug terminals accept a wide range of wire sizes
  • Pre-punched knockouts for clean cable entry

When is this breaker box used?
It is mainly used in home solar kits to centralize management and protection of the system, and it must be installed indoors.
How do i use a circuit breaker box?
Breakers inside the box let you disconnect different devices in the system. a breaker can be placed between each pair of components, for example solar panels and controller, controller and battery, and battery and inverter, for sectional control and protection.
Is a ground fault circuit interrupter required?
Yes. renogy notes that the nec requires one to be installed.
Are breakers included?
The package contains the breaker box, a key, and three labels. breakers are mounted on the built-in din rail and are not listed as included.
What wire sizes does it accept?
Compression terminals take 14 – 6 awg, pv and grounding lug terminals take 12 – 4 awg, and battery lug terminals take 12 awg – 2/0 awg.

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