Description
Morningstar MeterHub™ Solar Controller Communications Hub (HUB-1)
Overview
The Morningstar MeterHub™ (HUB-1) enables multiple Morningstar products to communicate on a single MeterBus network, providing shared data monitoring, advanced control capabilities, and simplified wiring across off-grid solar systems. Designed for reliability, the HUB-1 isolates powered devices to prevent ground faults, aggregates system data, and reduces hardware cost by allowing multiple controllers to share common meters and relay drivers.
Supporting up to 15 Morningstar devices, the HUB-1 is ideal for larger installations where multiple TriStar, SunSaver, or Relay Driver units operate together. Each of its five RJ-11 ports features LED status indicators and electrical isolation to safeguard network integrity.
Key Features
- Connects up to 15 Morningstar products on one MeterBus network
- Allows multiple controllers to share a single TriStar Digital Meter or Relay Driver
- Provides electrical isolation to protect against grounding issues
- Five RJ-11 ports with individual status LEDs
- Supports DIN-rail or wall mounting
- Reduces system cost by centralizing metering and relay control
Compatible Morningstar Devices
- SunSaver MPPT™
- TriStar™ and TriStar MPPT™ Controllers
- TriStar Digital Meter-2™ (TS-M-2)
- TriStar Remote Meter-2™ (TS-RM-2)
- Relay Driver™
Included in the Box
- MeterHub HUB-1 unit
- Five 1-meter MeterBus RJ-11 cables
- Operator’s manual
- Four mounting screws
Technical Specifications
| Model | HUB-1 |
|---|---|
| Maximum Devices | Up to 15 Morningstar products |
| Ports | 5 × RJ-11 (gold-plated) with LED status indicators |
| Isolation (Ports 1-4) | 500 V minimum |
| Self-Consumption | 8 mA per port |
| Operating Temperature | −40 °C to +60 °C |
| Storage Temperature | −55 °C to +85 °C |
| Humidity | 100 % non-condensing |
| Dimensions (H×W×D) | 13.5 × 10.8 × 3.7 cm (5.3 × 4.3 × 1.5 in) |
| Weight | 0.19 kg (0.41 lb) |
| Enclosure | Type 1 (indoor, vented); 35 mm DIN-rail compatible |
| Certifications | CE, ETL (UL 1741), RoHS, ISO 9001 manufacturing |
Design & Integration
The HUB-1 is compact and rugged, built for long-term performance in harsh industrial and remote solar environments. Its conformally coated circuit board resists corrosion and humidity, and its modular design simplifies system expansion. Multiple controllers can share a single display and relay control interface, optimizing cost and ensuring synchronized operation.
