Distribution Boxes / AC Distribution Box
AC Distribution Boxes for Inverter Output and Feeder Distribution
An AC distribution box takes the inverter or grid AC output and distributes it to outgoing circuits. A typical solar + storage build has one 4P breaker and one 4P surge protector per inverter, then feeder breakers for the loads. TPKELE builds the box to your drawing.
Typical Applications
Typical Configuration Options
| Item | Options |
|---|---|
| System | Single-phase 230V or three-phase 400V, TN-S / TN-C-S / TT |
| Incoming protection | TPKELE AC MCB 1P–4P, one per inverter or incoming source |
| Surge protection | TPKELE AC 4P SPD (Uc 385V, In 20kA / Imax 40kA) or 2P SPD for single-phase |
| Outgoing feeders | 1P / 2P / 4P AC MCBs, quantity per load schedule |
| Options | Energy meter, voltage protector, RCBO |
| Earthing & entry | PE / N busbars, cable glands sized to your cables |
TPKELE Components Used
Information Needed for a Quotation
- Inverter model, quantity and AC output current
- Single- or three-phase, and earthing system
- Number and rating of outgoing feeders
- Metering or monitoring requirements
Project Reference
Frequently Asked Questions
How many SPDs does an AC box with several inverters need?
It depends on the protection design. In the Mongolia project the customer specified one 4P SPD per inverter output; TPKELE can follow your design or a single SPD at the common busbar.
Can you add energy metering?
Yes. TPKELE DIN-rail energy meters can be added per incoming circuit or on the main busbar.
Other Box Types
PV Combiner Box
Combines PV strings with DC fuses, DC breakers and DC surge protection before the inverter.
→DC Distribution Box
Battery-side isolation and DC bus distribution between the battery bank, inverters and DC loads.
→ATS Panel
Automatic changeover between mains, generator and inverter supply, with protection on each source.
→Send Your Single-Line Diagram
Attach your drawing or equipment list in the inquiry, or email it to jacky@tpkele.com.