BYD Battery-Box Premium HV Combiner Box CBH-40A (MPN 13193966-00)
Want to connect several BYD Battery-Box Premium HV towers in parallel? With the BYD Combiner Box CBH-40A you bundle 2 or 3 battery towers into one neat DC connection towards the inverter. This makes your installation clearer, faster to service and above all: built as BYD intended.
Identification
| Brand | BYD |
|---|---|
| Model | CBH-40A |
| MPN / SKU | 13193966-00 |
| Manufacturer(name) | BYD Smart Device Hungary Kft. |
Key benefits
- One DC string to the inverter instead of several separate DC routes.
- Safe and orderly DC cabling with a robust, sealed enclosure.
- Scalable: suitable for connecting 2 or 3 towers in parallel (within BYD edge conditions).
Technical specifications
| Max. number of towers | 3 |
|---|---|
| Max. input current per tower | 35 A |
| Max. output current | 40 A |
| Max. operating voltage | 1000 V DC |
| Degree of protection | IP55 |
| Dimensions (H × W × D) | 350 × 540 × 120 mm |
| Weight | 9.7 kg |
| Operating temperature | -10 °C to +50 °C (derating above 40 °C: check in data sheet) |
| Cable entries (DC) | DC in: 6× M20×1.5 – DC out: 2× M20×1.5 (check in datasheet for your revision) |
| Conductor cross-section (DC) | 6-16 mm² |
| Earth (PE) cross section | 10-16 mm² |
Compatibility
- Application: parallel coupling of 2 or 3 BYD Battery-Box Premium HV towers.
- Towers must be the same: same battery family and same module assembly per tower (check in datasheet/manual).
- Do not mix: do not combine different tower types (e.g. HVS vs. HVM) in one parallel setup.
- SoC condition: ensure that the state of charge (SoC) between towers is the same at installation (check in manual).
Installation tips
- Check SoC of all towers before parallel connection (follow BYD manual).
- Functional test: check fault codes, correct detection and stable DC values towards inverter.
- Document: note MPN/serial numbers and take photos of connections for your completion file.