Maretron Direct Current Relay Module – DCR100-01

Take control of high-current DC loads on your vessel with the Maretron DCR100-01 Direct Current Relay Module — a rugged, NMEA 2000®-integrated relay designed to automate and manage DC power circuits based on data, conditions, or logic from your marine network. Ideal for advanced power management, this compact relay module allows onboard systems, sensor inputs, or configurable triggers from your NMEA 2000® network to control individual DC circuits such as pumps, lighting, fans, horns, or other high-current devices with precision and safety.

The DCR100-01 connects directly to your NMEA 2000® backbone, enabling other Maretron devices, software, or data sources to trigger relay actions without the need for separate wiring logic controllers. Its sealed marine-grade housing, corrosion-resistant terminals, and robust DC relay design ensure long life and dependable operation in harsh saltwater and vibration-prone environments.

Whether you’re automating bilge pump activation based on sensor thresholds or integrating systems for smarter vessel management, the DCR100-01 enables flexible relay control without custom wiring harnesses or separate control panels.

Technical Specifications

• Brand: Maretron

• Model: Direct Current Relay Module

• Part Number: DCR100-01

• Network Standard: NMEA 2000® (IEC 61162-3)

• Controlled Voltage: DC (12V and 24V compatible)

• Current Rating: Typically up to 10–30A* (verify exact spec in manual)

• Relay Type: DC coil, high-current switching

• Connectors: Sealed NMEA 2000® and DC terminal lugs

• Environment: Marine-rated for corrosion, moisture, vibration

*Check the product manual or datasheet for specific current and load ratings, as they may vary by application or configuration.

Benefits

• Automates DC circuits based on network conditions

• Centralizes control logic via NMEA 2000® data and triggers

• Reduces clutter by eliminating separate relay controllers

• Improves safety with controlled high-current switching

• Enables smart vessel automation and system integration

Applications

• Bilge pump automation based on water level sensors

• Smart lighting control (e.g., courtesy lights, nav lights)

• Horn, blower, fan, or accessory automation

• Generator or battery system control

• Integration with Maretron displays and software for alert-driven control

Summary for the User

The DCR100 is the backbone of a digital cabin. It is perfect for boaters who want to be able to turn on deck lights or check if a bilge pump is running from their phone (via a gateway) or from a centralized helm display. It reduces the amount of heavy-gauge wire needed at the dashboard by moving the actual switching closer to the batteries.

Pro Tip: To set the software trip points (breakers) for each channel, you will need a Maretron configuration tool like the USB100 or a DSM-series display.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Manufacturer : Maretron
Manufacturer Part No : DCR100-01
UPC : 873804003108