Redarc SPRP1180B Manual

The Redarc SPRP1180B is a high-performance 1180W pure sine wave inverter designed for reliable AC power in mobile, marine, and off-grid applications. It converts 12V DC battery power to 120V AC, featuring advanced protection systems, remote control capability, and a robust aluminum housing. Below are key sections covering safety, features, installation, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Connections 6. Operation 7. Protection Features 8. Maintenance 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Pure sine wave output, Remote Control Panel (optional), DC input terminals, AC output sockets, cooling fan, status LEDs.

Feature	Description
Pure Sine Wave Output	Provides clean, stable AC power compatible with sensitive electronics
Power Rating	1180W continuous, 2400W peak surge capacity
Input Voltage	12V DC nominal (10.5V - 15.5V operating range)
Output Voltage	120V AC, 60Hz
Efficiency	Up to 90% at full load
Remote Capability	Supports optional remote on/off and monitoring panel
Protection Features	Overload, over-temperature, low/high battery voltage, short circuit
Cooling	Temperature-controlled fan
Construction	Marine-grade aluminum housing
AC Outlets	Two standard NEMA 5-15R sockets

Installation

Select a dry, well-ventilated location. Ensure secure mounting.

Mounting: Secure inverter using provided hardware. Allow minimum 2 inches clearance on all sides for ventilation.
DC Connection: Connect positive (+) cable from battery to red terminal, negative (-) to black terminal. Use appropriate gauge cables (refer to manual).
AC Connection: Plug devices directly into AC outlets. Do not hardwire to building AC wiring without qualified electrician.
Remote Connection: Connect optional remote control cable to 3-pin port if used.
Final Check: Ensure all connections are tight and polarity is correct.

WARNING! Risk of electric shock and fire. Install fuse or circuit breaker within 18 inches of battery positive terminal. Follow all local electrical codes.

First-Time Setup

After installation, verify operation before connecting sensitive equipment.

Ensure all connections are secure and battery is charged.
Turn on inverter using power switch or remote. Green POWER LED should illuminate.
Connect a small, non-critical load (e.g., lamp) to verify AC output.
Check for normal operation: quiet fan, no warning LEDs (red).
If using remote panel, follow its separate setup instructions.

CAUTION! Do not connect sensitive electronics (computers, medical devices) until inverter operation is confirmed stable for several minutes.

Specifications

Model: SPRP1180B
Continuous Power: 1180W
Peak Power: 2400W (5 seconds)
Input Voltage Range: 10.5V - 15.5V DC
Low Battery Shutdown: 10.5V ±0.3V
High Battery Shutdown: 15.5V ±0.3V
Output Waveform: Pure Sine Wave
Output Voltage: 120V AC ±5%
Frequency: 60Hz ±0.5%
Efficiency: 90% (typical at full load)
No-Load Current Draw: < 0.8A
Operating Temperature: -4°F to 122°F (-20°C to 50°C)
Protections: Overload, Over-temperature, Short Circuit, High/Low Voltage
Cooling: Temperature-controlled fan
Dimensions (LxWxH): Refer to product datasheet
Weight: Refer to product datasheet

Controls and Connections

Front Panel: POWER switch, POWER LED (green), FAULT LED (red), two AC outlets.

Side/Terminal Panel: DC Input Terminals (+ / -), Remote Control Port (3-pin), Cooling Fan Vent.

Status Indicators: - Green POWER LED: Steady = Normal operation. Blinking = Low battery warning. - Red FAULT LED: Steady = Fault condition (overload, over-temperature, short circuit). Blinking = High battery voltage.

Remote Control (Optional): Provides on/off control, status monitoring, and fault code display from a distance.

Operation

Turning On: Ensure DC power is connected. Flip front panel POWER switch to ON (I). Green LED illuminates.
Connecting Loads: Plug AC devices into outlets. Do not exceed 1180W continuous load.
Monitoring: Observe status LEDs. Listen for fan operation under load (normal).
Turning Off: Unplug all loads. Flip POWER switch to OFF (O). Green LED turns off.
Using Remote: If installed, use remote for primary on/off control. Front panel switch must be ON.

Tip: For motor-driven tools or appliances with high startup surge, ensure their surge rating is below 2400W.

Protection Features

The inverter includes multiple safeguards. A fault will shut down output and illuminate the red FAULT LED.

Protection	Trigger Condition	System Response	Recovery
Overload	Continuous load >1180W	Shuts down output	Reduce load, power cycle inverter
Short Circuit	Short on AC output	Immediate shutdown	Clear short, power cycle
Low Battery	Input voltage < 10.5V	Shuts down (blinking green LED warning first)	Recharge battery
High Battery	Input voltage > 15.5V	Shuts down (blinking red LED)	Check charging system, power cycle
Over-Temperature	Internal temp > 185°F (85°C)	Shuts down	Allow to cool, improve ventilation

Maintenance

Regular inspection ensures long-term reliability.

Visual Inspection: Periodically check for loose connections, corrosion on terminals, or damage to cables/housing.
Cleaning: Keep vents clear of dust and debris. Wipe exterior with dry cloth. Do not use liquids or sprays.
Terminals: Ensure DC terminals are tight. Clean any corrosion with a wire brush.
Battery: Monitor battery state of charge. A weak battery is the most common cause of performance issues.

CAUTION! Disconnect DC power before performing any inspection or maintenance. Unit contains no user-serviceable parts inside.

Regulatory Information

This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. ETL listed to UL 458 and CSA 22.2 No. 107.1 standards. Copyright © Redarc Electronics Pty Ltd. For support in North America, contact the distributor or visit www.redarcelectronics.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power, no LEDs	No DC power, blown fuse, poor connection	Check battery voltage. Inspect and tighten DC connections. Check inline fuse/circuit breaker.
Green LED on, no AC output	Remote is off, overload shutdown	If using remote, ensure it's on. Power cycle inverter. Check for overload.
Red FAULT LED on	Overload, short circuit, over-temperature	Disconnect all loads. Allow to cool if hot. Power cycle. Reconnect loads one by one.
Green LED blinking	Low battery voltage	Recharge battery. Check battery health and cable size.
Red LED blinking	High battery voltage	Check vehicle/charger voltage regulator. Disconnect until charging system is repaired.
Inverter shuts down under load	Overload, low battery, high battery, overheating	Measure load with wattmeter. Check battery voltage under load. Ensure proper ventilation.
Fan runs continuously or loudly	High ambient temperature, high load	Ensure adequate ventilation. Reduce load if possible. This may be normal under heavy use.

Reset: For most faults, disconnect all loads and DC power for 30 seconds, then reconnect.

Service: This unit contains no user-serviceable parts. Do not open housing. For technical support or service, contact your distributor or Redarc.