Technical specifications

Control brain: 5 independent smart-relay modules (custom UX Marine firmware)

Control modes: momentary / latching / scheduled / scene / cloud / local API

Manual override: service switch on the front panel with full mechanical bypass

Core
Power & protection

Supply voltage: 12–24 V DC (direct from vessel’s house bank)

Power draw: < 1.5 W (typical)

Protections: transient suppression and reverse-polarity protection

Recommended feed fuse: 3–5 A DC

I/O & Switching

Channels: 5 isolated relays, one per control module

Relay rating: up to 16 A @ 230 VAC or 10–15 A @ 24 V DC (per channel, load-dependent)

Control types: dry-contact or line switching

Low-voltage triggers: supported via configurable inputs

Connectivity

Network: 2.4 GHz Wi-Fi (802.11 b/g/n), local web interface + cloud support

Integrations: Apple Home, Google Home, Amazon Alexa, IFTTT

Local control: LAN or direct access through on-board portal (no-cloud mode)

Automation & monitoring

Rules engine: schedules, temperature / voltage triggers, presence, sunrise / sunset

Examples
- Start air-con at ≥ 27 °C cabin temperature
- Deck lights on at sunset, off at midnight
- Beer fridge off when boat set to Away

Alerts: channel state, connectivity, alarms, low-battery notifications

Enclousure & hardware

Dimensions: 150 × 150 × 40 mm

Material: marine-grade ABS, matte UV-stable finish

Ingress rating: IP65 (sealed lid, gasketed cable entries)

Indicators: back-lit trident logo (blue LED) + per-channel status lights

Mounting: M4 corner holes (surface), DIN-rail clip (rear), panel flange

Termination:
Positive / Negative bus bars (high-amp feed)
4 × 5-port terminal groups for I/O and loads
Supported wire size: 0.2 – 4.0 mm² (24 – 11 AWG)

Security & updates

Authentication: device password / LAN access control

Firmware: over-the-air updates via UX Marine cloud

Data handling: local-first operation with optional cloud sync

Enviromental

Operating temperature: -10 °C to 50 °C

Humidity: 5 – 95 % RH non-condensing

Vibration: tested for marine mount environments

What's in the box?

Neptune’s Chest main unit (pre-assembled)

DIN-rail mount clip and stainless screws

Cable glands + circuit labels

Quick-start guide (QR link to installation manual)

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