/ subsystem · electrical
Electrical System
Battery Bank
800Ah · 12 V
Solar Array
480W
Inverter
3000VA · pure sine
Shore
30A · 120 V
Loads
52tracked
Bench Schematic
12 V DC bus
120 V AC
Communication cable
drag boxes · drag to pan · pinch or ⌘ scroll to zoom
Photos
Wiring Drawings
Source-of-truth shop drawings · the bench schematic above is derived from these
Wall Map
Each pink tag marks a wall cavity between furring strips · routes above use these letters
Driver side · front → trunk
A · B · C · D · E · F · G · H · I · J · K · L · M · N · O · P · Q · R · S · T
Garage / van rear
Van front
Passenger side · middle → trunk
U · V · W · X · Y · Z · ZA · ZB · ZC · ZD · ZE · ZF · ZG · ZH
Van front
Van rear
Loads & Routes
ROUTE = sequence of lettered wire-pulls from device back to the bench
AC Loads
120 V · fed from MultiPlus AC OUT → WFCO| Wire # | Component | Draw | AWG | Route | Zone |
|---|---|---|---|---|---|
| #36 | Under stove outlet (Empava induction cooktop) | 20 A · 1800 W | 12/3 AWG | K → L → H | Kitchen |
| #37 | Under sink outlet (Bosch ES4 mini-tank water heater) | 12 A · 1440 W | 12/3 AWG | ZD → ZC → ZB → ZA → AF Rear → M → Q → R → S → O → K → L → H | Plumbing |
| #39 | Kitchen P/S countertop outlet | 6 A | 12/3 AWG | X → U → AD Rear → E → F → G → H | Kitchen |
| #44 | Media nook outlet | 6 A | 12/3 AWG | V → Y → X → U → AD Rear → E → F → G → H | Living Rm |
| #45 | Bathroom outlet | 6 A | 12/3 AWG | ZH → ZD → ZC → ZB → ZA → AF Rear → M → Q → R → S → O → K → L → H | Bathroom |
| #42 | Front “L” bench outlet | 6 A | 12/3 AWG | L → H | Living Rm · chain head |
| #41 | Garage outlet | 6 A | 12/3 AWG | via junction box (#40) ← #42 | Garage |
| #43 | Under closet outlet (Fridge) | 6 A | 12/3 AWG | ← #41 | Kitchen |
Last three share AC breaker #12 — daisy-chained: L bench (#42) → junction box (#40) → garage (#41) → fridge (#43).
12 V Devices · WFCO DC Compartment
AC/DC Panel 2 · per Sheet 3| Wire # | Component | Fuse | Draw | AWG | Route | Zone |
|---|---|---|---|---|---|---|
| #33 | Starlink Mini Roam (24 V via step-up) | F1 · 30 A | 4.1 A · 100 W | 14 AWG | via 12 V → 24 V step-up (#30) | Internet |
| #23 | Webasto Air Top 2000 STC heater | F2 · 20 A · F7 · 3 A | 3.5 A · 40 W | 10 AWG | B → C → D → H | HVAC |
| #18 · #18.1 | HappiJac bed lift (motor + relay) | F3 · 20 A | 20 A · 240 W | 14 AWG | I (factory wire) | Bedroom |
| #17 | Dometic NRX-115C fridge | F4 · 10 A | 6 A · 70 W | 12 AWG | P → L → H | Kitchen |
| #25 | SEAFLO 42 water pump | F5 · 10 A | 7.5 A · 90 W | 14 AWG | W → V → U → AD Front → E → F → G → H | Plumbing |
| #34.1 | Grey water tank heating pad | F6 · 5 A | 4.8 A · 65 W | 14 AWG | via heater switch panel | HVAC |
| #34.2 | Fresh water heating pad | F6 · 5 A | 4.8 A · 65 W | 14 AWG | via heater switch panel | HVAC |
| #21 | KUS electric water gauge | F8 · 3 A | 0.1 A · 2 W | 16 AWG | W → V → U → AD Front → E → F → G → H | Plumbing |
| #46 | L bench muffin fan | F9 · 3 A | low | 16 AWG | L bench under-deck | Living Rm |
| #20B | Gray water drain relay | F10 | low | 16 AWG | Under van → T → P → L → H | Plumbing |
| #19 | U.S. Solid motorized ball valve ½″ | via dash relay | 0.17 A · 2 W | 16 AWG | Under van → T → P → L → H | Plumbing |
12 V Devices · Blue Sea 12-Circuit Fuse Box
DC Panel 1 · per Sheet 2| Wire # | Component | Draw | Route | Zone |
|---|---|---|---|---|
| #24 | Maxxair 7500K vent fan | 0.2 – 4.5 A | AG Rear → Q → M → N → O → K → L → H | Bathroom |
| #29.3 | 12 V outlet · D/S L bench | — | — TBD | Living Rm |
| #29.1 | 12 V outlet · garage | — | T → S → O → K → L → H | Garage |
| #29.2 | 12 V outlet · media nook (TV + USB) | — | V → U → AD Front → E → F → G → H | Living Rm |
| #16 | Sylvox 22″ TV | 2 A · 24 W | plugged into media nook outlet (#29.2) | Living Rm |
| #34.3 | Compartment battery heating pad | 4.8 A · 65 W | at battery bank | Electrical |
Direct From Lynx
no panel · own breaker on the bench| Wire # | Component | Breaker | Draw | Route | Zone |
|---|---|---|---|---|---|
| #22 | Cruise N Comfort VES Ice Box | 70 A · A/C C/B | 55 A · 660 W (60 A peak) | Lynx → 70 A breaker → compressor | HVAC |
Lighting
DC · 16 AWG runs · ~3 W per fixture| Wire # | Circuit | Route | Notes |
|---|---|---|---|
| #26.1 | Bedroom — connection box | V → U → X | 3 sub-circuits A–F |
| #26.1 A | Bedroom ceiling — front P/S | X → U → AD → AC → AB → AA Front Passenger | |
| #26.1 B | Bedroom ceiling — front D/S | X → U → AD → AC → AB → AA Front Driver | |
| #26.1 C | Bedroom ceiling — rear P/S | X → U → AE Front Passenger | |
| #26.1 D | Bedroom ceiling — rear D/S | X → U → AE Front Driver | |
| #26.1 E | Bedroom bed lights — control cabinet | X → U → AE Front Driver → I | |
| #26.1 F | Bedroom bed lights — extra | X → U → AE Front Driver → I | |
| #26.2 | Kitchen / bath — connection box | V → U → X → ZA | 1:2 connection |
| #26.2 B | Kitchen / bath ceiling — P/S | ZA → ZA | |
| #26.2 C | Kitchen / bath ceiling — D/S | ZA → ZE → AG Rear → AH Front | |
| #26.2 A | Kitchen under-cab — P/S | ZA → ZE → AG Rear → AH Front | |
| #26.2 D | Kitchen under-cab — D/S | ZA → ZE → AG Rear → Q → M → I | |
| #26.3 A | Ambient — under bench P/S | X → U → V → W | |
| #26.3 B | Ambient — inside cabinets P/S | X → X | |
| #26.3 C | Ambient — toe kick P/S | X → Y → Z | |
| #26.3 D | Ambient — bathroom | X → ZA → ZE | |
| #26.3 E | Ambient — connection P/S → D/S | X → ZA → AF Front → M | link wire |
| #26.3 F | Ambient — toe kick D/S | M → N → O → K → L → H | |
| #26.3 G | Ambient — inside cabinet D/S | M → I | |
| #26.3 H | Ambient — under bench D/S | V → U → M → N → O → K → L → H → D | |
| #28.1 A–B | Garage recessed ceiling lights | AG Rear → Q → M → N → O → S → T | daisy-chained |
Switches & Controls
DC · 14 / 16 / 18 AWG · low draw| Wire # | Switch | AWG | Route | Controls |
|---|---|---|---|---|
| #20 | Sprinter OEM dash switch (ball valve) | 14 AWG | Dash → under floor → driver seat box → B → C → D → H | Ball valve · 30 A relay |
| #27 | Bedroom rotary dimmer | 14 AWG | V → U → AD Front → E → F → G → H | Bedroom lights |
| #27 | Kitchen / bath rotary dimmer | 14 AWG | V → U → AD Front → E → F → G → H | Kitchen / bath lights |
| #28 | Garage rotary dimmer | 16 AWG | T → S → O → K → L → H | Garage lights |
| #27 | Ambient rotary dimmer | 14 AWG | V → U → AD Front → E → F → G → H | Ambient circuits |
| #18.2 | HappiJac bed-lift switch | 18 AWG | I (factory wire) | Bed motor |
| #23.1 | Webasto smart thermostat | 16 AWG | I → E → F → G → H → D → C → B | Webasto heater |
| #35 | Heater switch panel | 12 AWG | I → E → F → G → H | Heater bank |
| #22.1 | Cruise N Comfort thermostat | — | at unit | Ice Box |
| #25.1 | Water pump switch | 14 AWG | W → V → U → AD Front → E → I | SEAFLO pump |
| #30.1 | Starlink rocker switch | 16 AWG | at antenna | Starlink Mini |
Main Electrical Bench
all components live here, in order along the DC bus| Wire # | Component | AWG | Role |
|---|---|---|---|
| #1 | EG4 LL × 2 — 12 V 400 Ah each | 4/0 AWG | Storage · 800 Ah parallel |
| #3 | Battery switch 275 A | 4/0 AWG | Master cutoff |
| #5 | Lynx Shunt VE.Can | — | Battery monitor (negative leg) |
| #4 · #4.1 | Lynx Distributor + 4× 250 A Mega Fuses | 4/0 AWG | Positive bus · per-leg fusing |
| #14 | MultiPlus-II 3000 VA | 4/0 + 12/3 AWG | Inverter / charger / transfer |
| #10 | SmartSolar MPPT 100/50 | 10 AWG · PV side | Solar charge controller |
| #13 | Orion XS DC-DC 12/12-50 | 10 AWG · alt side | Alternator charger |
| #2 | Bussmann 40 A circuit breaker × 3 | 10 AWG | Branch protection |
| #7 | Cerbo GX MK2 | VE.Direct + CAN | Monitoring brain |
| #8 | GX Touch 50 display | — | 5″ touchscreen |
| #8.1 | HDMI & USB extension cable | — | Cerbo → GX Touch |
| #9 | VE.Can bus cable | — | Cerbo ↔ Lynx Shunt |
| #5.1 | VE.Direct cable × 3 | — | Cerbo ↔ MPPT / Orion / MP |
| #15 | Blue Sea 12-circuit fuse box | — | DC distribution (DC Panel 1) |
| #15.1 | WFCO AC/DC distribution center | — | AC + DC distribution (AC/DC Panel 2) |
| #6.1 | Blue Sea AC main 30 A | 12/3 AWG | Shore breaker |
| #6 | Furrion 30 A shore inlet | 12/3 AWG | AC inlet |
| #11 | Scanstrut cable gland seal | — | Roof penetration |
| #32 | Cable seal gland | — | Starlink roof passthrough |