Total Box DC/AC Single-Phase Panel TBMF 1/1 1000V
Total Box TBMF 1/1 1000V panel: a combined solution integrating DC-side and AC-side protection of a single-phase photovoltaic system in one box. It includes a 1000 Vdc load-break isolator, a Type 2 SPD surge arrester, a 1000V fuse holder base with gPV fuses and a 20A class A residual current circuit breaker. IP65 enclosure, compliant with the CEI 0-21, CEI EN 61439 and CEI 64-8 standards.
The Total Box TBMF 1/1 1000V panel by Icierre is a combined enclosure that brings together in a single solution all the protections a single-phase photovoltaic system needs: it safely manages both the photovoltaic module strings (DC side) and the connection to the grid (AC side), reducing footprint and wiring time.
Why do you need a Total Box string panel?
Every photovoltaic system must be protected against overcurrents, surges and insulation faults, and must be capable of being safely isolated for maintenance. The Total Box TBMF 1/1 1000V integrates all these devices in a single certified panel, in compliance with the Italian CEI 0-21, CEI EN 61439 and CEI 64-8 standards, avoiding the need to assemble loose components and ensuring system continuity and reliability.
TBMF 1/1 1000V technical specifications
| Configuration | Single-phase — 1 IN / 1 OUT |
| Max DC voltage | 1000 Vdc |
| Number of strings | 1 |
| DC protection | 1000V load-break isolator + Type 2 SPD surge arrester 1000V |
| Fuses | 1000V fuse holder base + gPV fuses 16/20A |
| AC protection | RCBO 20A curve C, 300mA class A |
| AC-side SPD | 230V Type 2 surge arrester |
| Protection rating | IP65 |
| Standards | CEI 0-21, CEI EN 61439, CEI 64-8 |
| Weight | 2 kg |
When is the Total Box TBMF 1/1 1000V used?
It is intended for single-phase photovoltaic systems with 1 string up to 1000 Vdc, where a single panel combining DC and AC protection is preferred. It simplifies the grid connection application to the network operator and the declaration of conformity of the system.
What is included
- Total Box TBMF 1/1 1000V panel in an IP65 enclosure with component identification labels
- Load-break isolator, Type 2 SPD and fuse holder with gPV fuses on the DC side
- Residual current circuit breaker with overcurrent protection and SPD on the AC side
- Pre-wired input/output terminal blocks
Frequently asked questions
Is the TBMF 1/1 1000V panel pre-wired or do I have to assemble it?
The Total Box TBMF 1/1 1000V arrives already wired and certified: isolator, SPD, fuse holders and residual current breaker are mounted and connected to the input/output terminal blocks. It only needs to be wall-mounted and connected to the strings and to the AC line.
What does the DC side of this panel protect?
The DC side integrates a 1000 Vdc load-break isolator, a Type 2 SPD surge arrester and a 1000V fuse holder base with gPV fuses, protecting the string against overcurrents and indirect lightning strikes.
What protection is provided on the AC side?
On the AC side there is a 20A curve C residual current circuit breaker with overcurrent protection, rated 300mA class A, and a 230V SPD surge arrester, protecting the line towards the inverter and the grid.
Is this panel suitable for a single-phase system?
Yes: the TBMF 1/1 1000V is designed for single-phase photovoltaic systems up to 1000 Vdc with 1 string. For different configurations (number of strings, voltage or phase) other models in the Total Box range are available.
Which documents are needed for the grid connection?
The connection application to the network operator normally requires the single-line diagram, the declaration of conformity and the rating data of the protection devices: being a certified panel, the Total Box simplifies the completion of this documentation.