System Calculator

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1-click templates

Start from a proven configuration

Pick an installation type — we fill appliances, voltage, battery chemistry and run the schematic calculation.

Instant hydration

Design steps

Mobile-first stepper. Complete each section — the live preview updates instantly.

Inverter / voltage converter selection

Recommended inverter: 3000 W (Continuous: 2647 W, Peak: 4235 W)

Inverter operating mode

Hours on / day

Inductive loads (2× surge): Indukční deska

Inverter idle self-consumption

40 W × 4 h/day = 160 Wh/day

Inverter no-load self-consumption (idle consumption)

Load concurrency matrix (simultaneity factor)

Concurrency OK

Concurrency factor 1 · connected 1800 W / inverter 3000 W

Sum of 230 V appliances is within continuous inverter power — unrestricted concurrent use.

Name
Watts
h/day
Type
Name
Watts
h/day
Type
Name
Watts
h/day
Type

Daily Consumption

1863 Wh

77.6 Ah/day

Battery Autonomy

2.3 d (56 h)

Target 2 d · 200 Ah

Max Peak Current

226.5 A

Battery bus worst-case

Wiring diagram

Interactive SVG preview with live gauge & fuse labels.

Battery ↔ Busbar
120 mm² · 300 A Class T
Busbar ↔ Inverter
95 mm² · 200 A Class T
MPPT ↔ Battery
4 mm² · 25 A ATO

Engineering Health Check

Safety audit per ISO 10133 / IEC 60364-7-721 / ABYC E-11

OK: 6Advisory: 2Hazard: 2

Voltage drops compliant

Round-trip DC drop meets Victron / ISO criteria.

BMS discharge overload

Peak 226 A exceeds BMS 200 A — raise voltage or parallel packs.

MPPT frost over-voltage

Voc reaches 111.7 V at −15 °C, exceeding the controller limit (100 V). Use a more parallel layout or a higher MPPT Voc series.

Inverter thermal clearance

Keep ≥ 100 mm free air above/below high-power inverters.

230 V concurrency OK

Sum 1800 W ≤ continuous inverter rating 3000 W.

Fuse coordination OK

OCPD ≤ cable ampacity; Class-T / high-AIC MEGA for LiFePO4 (high prospective short-circuit current).

Battery fuse distance

Battery↔bus run 0.50 m > ISO 10133 max 0.2 m — place Class-T ≤200 mm from + post.

Pre-charge resistor recommended

Inverter 3000 W ≥ 2000 W — limit inrush into BMS FETs/contactors.

Operating temperature OK

No critical cold-charge condition detected.

Shunt on negative topology

Shunt must be the only path between battery − and DC negative bus.

Complete workshop pack & wiring schematic

Basic calculation is free. The full 4-page Wiring Blueprint unlocks the schematic, thermal audit, BOM and workshop labels.

Pay-per-export

Premium engineering audits included in the PDF

Available in the installation blueprint

DC-DC alternator charging & idle overload protection

Full input/output sizing for voltage conversion (e.g. 12V alternator → 24V traction). Safe D+ sense wiring for Euro 6 smart alternators and idle overload protection.

Available in the installation blueprint

230 V shock protection & N-PE bonding (IEC 60364)

Inverter grounding-relay wiring and chassis ground placed after the shunt so the RCD/RCBO works without floating chassis voltage.

Available in the installation blueprint

Enclosure thermal audit & ventilation m³/h

Dynamic heat-loss sum from inverter, MPPT and DC-DC at full load (estimate: 317 W). Exact ventilation airflow in m³/h to protect cells from degradation.

Available in the installation blueprint

Global & seasonal solar analysis (4 seasons by world destination)

Detailed energy production matrix (Spring, Summer, Autumn, Winter) for the selected world destination, including southern-hemisphere calendar alignment. Battery sizing for overcast days and DC-DC booster drive-time to bridge the deficit.

Available in the installation blueprint

Workshop print pack: cable labels & CSV BOM

Cut-out cable wraps for lamination (gauge, voltage, protection) + one-click CSV BOM for material ordering.

Basic calculation (free)

• Indicative watts and daily balance
• Theoretical conductor cross-sections
• Simplified block diagram

Wiring Blueprint & Installation Guide (PDF + CSV)

• Vector single-line drawing including DC-DC and 230 V branch
• Thermal audit and enclosure ventilation sizing
• Itemized BOM + wire identification labels
• RCBO 16 A / 30 mA Type A and N-PE bonding per IEC 60364
• Euro 6 smart-alternator protection (D+ / idle)

The installation blueprint provides a verified commissioning procedure per ISO 10133 and IEC 60364-7-721.

Per ISO 10133 and IEC 60364

I agree to the Terms of Service and acknowledge that the generated output is a conceptual technical design and installation aid. It does not replace authorised building project documentation. Connection of reserved electrical equipment (230 V AC) and final inspection require professional competence under applicable standards (NV 194/2022 Coll. / IEC 60364-7-721). Terms of service

One-time · 290 Kč · Wiring Blueprint · guest OK

By submitting and downloading you acknowledge the informative and advisory nature of this documentation.

Instant generationSecure payment

By submitting and downloading you acknowledge the informative and advisory nature of this Technical Installation Concept.

Export Wiring Blueprint (PDF)

Download the free summary or unlock the Wiring Blueprint & Installation Guide (PDF).

White-label B2B PDF (workshop branding)Replace the VoltSchema header and ISO title block with your company name and licence number.

One-time · 290 Kč · Wiring Blueprint · guest OK

By submitting and downloading you acknowledge the informative and advisory nature of this documentation.

System engineering audit

Algorithmic IEC / ISO standards check — deterministic safety validation from your inputs. No generative models.

Optional design notes

System Calculator

All changes saved

Back to home page

1-click templates

Start from a proven configuration

Pick an installation type — we fill appliances, voltage, battery chemistry and run the schematic calculation.

Instant hydration

Design steps

Mobile-first stepper. Complete each section — the live preview updates instantly.

Inverter / voltage converter selection

Recommended inverter: 3000 W (Continuous: 2647 W, Peak: 4235 W)

Inverter operating mode

Hours on / day

Inductive loads (2× surge): Indukční deska

Inverter idle self-consumption

40 W × 4 h/day = 160 Wh/day

Inverter no-load self-consumption (idle consumption)

Load concurrency matrix (simultaneity factor)

Concurrency OK

Concurrency factor 1 · connected 1800 W / inverter 3000 W

Sum of 230 V appliances is within continuous inverter power — unrestricted concurrent use.

Name
Watts
h/day
Type
Name
Watts
h/day
Type
Name
Watts
h/day
Type

Daily Consumption

1863 Wh

77.6 Ah/day

Battery Autonomy

2.3 d (56 h)

Target 2 d · 200 Ah

Max Peak Current

226.5 A

Battery bus worst-case

Wiring diagram

Interactive SVG preview with live gauge & fuse labels.

Battery ↔ Busbar
120 mm² · 300 A Class T
Busbar ↔ Inverter
95 mm² · 200 A Class T
MPPT ↔ Battery
4 mm² · 25 A ATO

Engineering Health Check

Safety audit per ISO 10133 / IEC 60364-7-721 / ABYC E-11

OK: 6Advisory: 2Hazard: 2

Voltage drops compliant

Round-trip DC drop meets Victron / ISO criteria.

BMS discharge overload

Peak 226 A exceeds BMS 200 A — raise voltage or parallel packs.

MPPT frost over-voltage

Voc reaches 111.7 V at −15 °C, exceeding the controller limit (100 V). Use a more parallel layout or a higher MPPT Voc series.

Inverter thermal clearance

Keep ≥ 100 mm free air above/below high-power inverters.

230 V concurrency OK

Sum 1800 W ≤ continuous inverter rating 3000 W.

Fuse coordination OK

OCPD ≤ cable ampacity; Class-T / high-AIC MEGA for LiFePO4 (high prospective short-circuit current).

Battery fuse distance

Battery↔bus run 0.50 m > ISO 10133 max 0.2 m — place Class-T ≤200 mm from + post.

Pre-charge resistor recommended

Inverter 3000 W ≥ 2000 W — limit inrush into BMS FETs/contactors.

Operating temperature OK

No critical cold-charge condition detected.

Shunt on negative topology

Shunt must be the only path between battery − and DC negative bus.

Complete workshop pack & wiring schematic

Basic calculation is free. The full 4-page Wiring Blueprint unlocks the schematic, thermal audit, BOM and workshop labels.

Pay-per-export

Premium engineering audits included in the PDF

Available in the installation blueprint

DC-DC alternator charging & idle overload protection

Full input/output sizing for voltage conversion (e.g. 12V alternator → 24V traction). Safe D+ sense wiring for Euro 6 smart alternators and idle overload protection.

Available in the installation blueprint

230 V shock protection & N-PE bonding (IEC 60364)

Inverter grounding-relay wiring and chassis ground placed after the shunt so the RCD/RCBO works without floating chassis voltage.

Available in the installation blueprint

Enclosure thermal audit & ventilation m³/h

Dynamic heat-loss sum from inverter, MPPT and DC-DC at full load (estimate: 317 W). Exact ventilation airflow in m³/h to protect cells from degradation.

Available in the installation blueprint

Global & seasonal solar analysis (4 seasons by world destination)

Available in the installation blueprint

Workshop print pack: cable labels & CSV BOM

Cut-out cable wraps for lamination (gauge, voltage, protection) + one-click CSV BOM for material ordering.

Basic calculation (free)

• Indicative watts and daily balance
• Theoretical conductor cross-sections
• Simplified block diagram

Wiring Blueprint & Installation Guide (PDF + CSV)

• Vector single-line drawing including DC-DC and 230 V branch
• Thermal audit and enclosure ventilation sizing
• Itemized BOM + wire identification labels
• RCBO 16 A / 30 mA Type A and N-PE bonding per IEC 60364
• Euro 6 smart-alternator protection (D+ / idle)

The installation blueprint provides a verified commissioning procedure per ISO 10133 and IEC 60364-7-721.

Per ISO 10133 and IEC 60364

One-time · 290 Kč · Wiring Blueprint · guest OK

By submitting and downloading you acknowledge the informative and advisory nature of this documentation.

Instant generationSecure payment

By submitting and downloading you acknowledge the informative and advisory nature of this Technical Installation Concept.

Export Wiring Blueprint (PDF)

Download the free summary or unlock the Wiring Blueprint & Installation Guide (PDF).

White-label B2B PDF (workshop branding)Replace the VoltSchema header and ISO title block with your company name and licence number.

One-time · 290 Kč · Wiring Blueprint · guest OK

By submitting and downloading you acknowledge the informative and advisory nature of this documentation.

System engineering audit

Algorithmic IEC / ISO standards check — deterministic safety validation from your inputs. No generative models.

Optional design notes

Start from a proven configuration

1. Appliances & Energy balanceDC/AC loads and Wh/day balance

2. Battery & System voltage12V / 24V / 48V, autonomy and LiFePO4

3. Solar panels & world destinationsPV array, world destinations, seasonal insolation and MPPT

4. Schematic, Protection & Standards checkCable runs, fuses and standards check

Start from a proven configuration

1. Appliances & Energy balanceDC/AC loads and Wh/day balance

2. Battery & System voltage12V / 24V / 48V, autonomy and LiFePO4

3. Solar panels & world destinationsPV array, world destinations, seasonal insolation and MPPT

4. Schematic, Protection & Standards checkCable runs, fuses and standards check