T-Pieces + Adapters for Micro-Inverters
– Betteri BC01 / BC05 / Deye LY01
High-quality T-connectors for the safe and quick parallel connection of
micro-inverters. Compatible with Betteri BC01, BC05, and Deye LY01
connector systems. Ideal for system expansions, retrofits, and modular PV setups.
Note: Betteri offers the BC05-AC connector in two designs:
- BC05C Standard (large) Used with many Deye, Bosswerk, TSUN, and Envertech inverters.
Larger outer diameter, more robust housing. - BC05A Slim (small) A more compact version, often found in newer micro-inverters such as Hoymiles or those from OEM manufacturers.
Does not fit mechanically into the large version—despite having an identical pinout.
Variants / Products
- Var1: Betteri BC01 T-connector FF-M
- Var2: Betteri BC01 T-Connector MM-F (currently out of stock)
- Var3: Betteri BC05C-T Bus Connector MM-F (Size: Standard)
- Var4: Deye LY01 T-Connector FF-M
compatible adapters - Var5: Deye LY01 F Adapter to Betteri BC01 M
- Var6: Betteri BC05A Adapter (Size: Slim) F to Betteri BC01 M
M = male = plug; F = female = socket
Product Highlights
- Compatible with Betteri BC01, BC05, and Deye LY01
- Rugged 230-V connector for micro-inverters
- Ideal for parallel connection and expansion of PV systems
- UV-resistant, weather-resistant, and durable
- Quick installation without special tools
- High contact reliability thanks to lockable connector systems
Areas of Application
- Parallel Connection of Micro-Inverters
- Expansion of existing balcony or mini-PV systems
- Adapter solutions between BC01, BC05, and LY01 connector systems
- Professional PV Installations
Technical data
| Plug-in system | Betteri BC01 / BC05 / Deye LY01 |
| Rated voltage | 230 V AC |
| Protection Class | IP65 (when coupled) |
| Material | UV-resistant plastic |
| Temperature range | –25 °C to +60 °C |
Which micro inverters use which plugs at the 230V output?
AP-Systems Betteri BC01
Betteri BC01 Deichturbinen
Deye Deye LY01
Envertech Betteri BC01
Growatt Betteri BC05C
Hoymiles HMS Betteri BC05A
Marstek Betteri BC01
Sossen Betteri BC01
What’s Included
- 1 of each (selected option)
Note
Compatibility refers to the connector systems listed.
Please check the electrical requirements
for your inverter before installation. No performance guarantee.
Customer Reviews:
Good quality and good communication with the seller, time and time again.
Buyer: on88-90
Everything was great—I’d love to come back!
Buyer: samwid
Everything was perfect 👍
Buyer: matze420_123
This is exactly the BC02 T-adapter I was looking for to combine two inverter outputs.
Buyer: happy_maxx
