Morningstar Relay Morningstar RD-1 4‑Channel Relay Driver for | 4Boats

Programmable 4‑channel Morningstar Relay RD‑1 logic relay driver for voltage, temperature and parameter control in off‑grid and hybrid systems.

• Four independent programmable channels (each a 750 mA switch) that can operate separately or be combined with AND/OR logic; channels can also act as sensors to measure voltage or other parameters.
• Events that can trigger a response include: battery voltage or another voltage parameter reaching a high or low voltage threshold; connected Morningstar products (e.g., TriStar) generating an alarm or fault; device temperature rising or falling to set levels; or another TriStar/external sensor parameter reaching a defined threshold.
• Typical threshold control modes monitor a parameter — for example the battery voltage level (or a voltage level coming from another source) — and trigger actions such as Run, Pre‑crank (Pre‑Heat), Crank (Momentary Run), Load, Stop, etc.
• Practical example: monitor battery voltage and, when the battery is full, send excess solar charge to a dump load or trigger generator stop.
• Electrical specifications: Number of channels: 4. Nominal system voltage: 12 V / 24 V / 36 V / 48 V. Operating voltage: 8–68 V. Maximum channel current: 750 mA. Self‑consumption: < 20 mA. Transient surge protection: 1500 W per channel.
• Sensors, ports and temperature ranges: Temperature sensor range: -40 °C to +85 °C (-40 °F to +185 °F). Operating temperature: -40 °C to +45 °C (-40 °F to +113 °F). Storage temperature: -55 °C to +85 °C (-67 °F to +185 °F). Communication ports (opto‑isolated): RJ‑11 meter‑bus and 9‑pin serial RS‑232.
• Physical and connection details: Terminal size: 2.5 mm². Dimensions: 163 x 81 x 33 mm (6.42 x 3.19 x 1.30 in). Weight: 0.20 kg (0.44 lb).
• Warranty and documentation: This product is covered by a 5‑year warranty. Instruction manual and product datasheet are available to download; Morningstar MSView software is also available for download.

Compatible with Morningstar TriStar controllers and other external sensors; recommended for controlled installation with correct earthing and surge protection. Download manuals and MSView before commissioning.

Programmable 4‑channel Morningstar Relay RD‑1 logic relay driver for voltage, temperature and parameter control in off‑grid and hybrid systems.

• Four independent programmable channels (each a 750 mA switch) that can operate separately or be combined with AND/OR logic; channels can also act as sensors to measure voltage or other parameters.
• Events that can trigger a response include: battery voltage or another voltage parameter reaching a high or low voltage threshold; connected Morningstar products (e.g., TriStar) generating an alarm or fault; device temperature rising or falling to set levels; or another TriStar/external sensor parameter reaching a defined threshold.
• Typical threshold control modes monitor a parameter — for example the battery voltage level (or a voltage level coming from another source) — and trigger actions such as Run, Pre‑crank (Pre‑Heat), Crank (Momentary Run), Load, Stop, etc.
• Practical example: monitor battery voltage and, when the battery is full, send excess solar charge to a dump load or trigger generator stop.
• Electrical specifications: Number of channels: 4. Nominal system voltage: 12 V / 24 V / 36 V / 48 V. Operating voltage: 8–68 V. Maximum channel current: 750 mA. Self‑consumption: < 20 mA. Transient surge protection: 1500 W per channel.
• Sensors, ports and temperature ranges: Temperature sensor range: -40 °C to +85 °C (-40 °F to +185 °F). Operating temperature: -40 °C to +45 °C (-40 °F to +113 °F). Storage temperature: -55 °C to +85 °C (-67 °F to +185 °F). Communication ports (opto‑isolated): RJ‑11 meter‑bus and 9‑pin serial RS‑232.
• Physical and connection details: Terminal size: 2.5 mm². Dimensions: 163 x 81 x 33 mm (6.42 x 3.19 x 1.30 in). Weight: 0.20 kg (0.44 lb).
• Warranty and documentation: This product is covered by a 5‑year warranty. Instruction manual and product datasheet are available to download; Morningstar MSView software is also available for download.

Compatible with Morningstar TriStar controllers and other external sensors; recommended for controlled installation with correct earthing and surge protection. Download manuals and MSView before commissioning.