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Morningstar Relay Driver (RD-1)

$174.00

$99.00

In Stock

A cost-effective logic module that provides high-level renewable energy system control.

SKU: R11329

Morningstar Relay Driver (RD-1)


Morningstar's RelayDriver™ is a cost-effective logic module that provides high-level system control functions including high/low voltage alarms, load control, temperature control, auxiliary AC backup charge control, and generator start. The RD-1 controls 4 independent relay driver outputs by reading digital data inputs from the renewable energy system's charge controller.

When used in a system with a Morningstar TriStar charge controller, the RD-1 Relay Driver can accept the following inputs: battery voltage, charge/load current, battery temperature, TriStar heat sink temperature, PWM duty cycle, PV/load voltage, and all TriStar alarms or faults.

When used in a system with a different kind of charge controller, the RD-1 can accept these inputs: battery voltage, Relay Driver temperature, and input voltages from other sources.


Morningstar RD-1 Relay Driver Features

  • Four channels for up to four high-level system control functions
  • Each channel has complete electronic protection for high reliability (reverse polarity, short-circuit, overcurrent, and lightning/transient surge protection)
  • Fully programmable through the included PC software
  • Pre-programmed with four commonly used settings
  • Advanced generator control provides flexible parameters to control one- two- or three-wire generator schemes and complete control of preheat, crank, ignition, and cooldown
  • LED indicators display power and status of each channel as well as faults and data sampling intervals
  • Mounts to a DIN rail or flat surface
  • 5-year warranty

Morningstar RD-1 Relay Driver Features

  • 6.4" L x 3.2" W x 1.3" D
  • 0.4 lbs
  • System voltage: 12 - 48VDC (voltage of user-selected relays must be the same as the battery voltage)
  • Max current on each channel: 750A
  • Transient surge protection on each channel: 1500W
  • Self-consumption: < 20 mA
  • Ports: 2x RJ-11 meter bus connections, 1x 9-pin serial RS-232
  • Manufacturer: Morningstar
  • Model number: RD-1

This product is shipped from one of our warehouses in Northern California. Orders placed after 12 p.m. will typically ship the following business day. To see an estimate of our delivery times, click here.

Returns & Replacements
Products can be returned for a refund within 30 days of receipt if unused and in original packaging. Returns are paid for by customer unless product is defective or damaged, in which case Real Goods assumes responsibility. Please use Fedex, UPS, or USPS with tracking, for returns.

Returns of solar panels, inverters or other large ticket items will incur a re-stocking fee of up to 20%. Freight shipping is non-refundable.


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