SunSun JDP-3500 DC Variable Frequency Pump

SunSun JDP-3500 DC Variable Frequency Pump – 3500 L/h

SunSun JDP-3500 is an energy-efficient, electronically controllable DC variable-frequency aquarium water pump designed for freshwater aquariums, marine systems, sumps, filtration systems and water-circulation applications.

Unlike a conventional fixed-speed aquarium pump, the JDP-3500 provides 5 adjustable output levels, allowing the aquarist to balance water flow, head pressure and power consumption according to the aquarium or filtration system.

At its adjustable operating levels, the JDP-3500 provides approximately 2300–3500 litres per hour flow while consuming approximately 10–30W.

SunSun JDP-3500 Key Features

• Adjustable flow: 2300–3500 L/h
• 5-level variable-frequency control
• Power consumption: 10–30W
• Maximum head range: 1.7–3.5m
• Low-voltage DC 24V operation
• Brushless and sensorless motor-control technology
• Designed for quiet operation
• Suitable for freshwater and marine aquariums
• Ceramic shaft for wear and corrosion resistance
• No copper element in the pump
• Closed impeller design
• Locked-rotor protection
• Multiple hose connection sizes

Adjustable 2300–3500 L/h Water Flow

The major advantage of the SunSun JDP-3500 DC pump is its adjustable output.

Rather than operating continuously at one fixed speed, the controller provides 5 operating levels so water circulation can be adjusted to suit the aquarium.

According to SunSun, the JDP-3500 operating range is approximately:

• Flow: 2300–3500 L/h
• Power: 10–30W
• Head: 1.7–3.5m

This makes it useful when a fixed-output pump would provide either too much or too little circulation.

Energy-Efficient DC Variable Frequency Technology

The JDP series uses a three-phase brushless and sensorless DC motor-control system.

SunSun states that this technology can provide energy savings of up to approximately 50% compared with conventional pump technology under suitable operating conditions.

Because the JDP-3500 can operate from approximately 10W to 30W depending on the selected level, users do not need to run the pump continuously at maximum power when lower circulation is sufficient.

Low-Voltage 24V DC Operation

The pump itself operates at DC 24V, providing a low-voltage operating system around the aquarium.

Always use the correct compatible power supply/controller supplied or specified for the JDP-3500.

Suitable for Freshwater & Marine Aquariums

SunSun specifies the JDP series for use in both freshwater and seawater.

Typical applications include:

• Freshwater aquariums
• Planted aquariums
• Marine aquariums
• Reef aquarium sumps
• Sump return systems
• External filtration systems
• Aquarium circulation
• Fish holding systems
• Suitable pond and water-circulation applications

Ideal as an Aquarium Sump Return Pump

The adjustable flow and head pressure make the JDP-3500 particularly useful as a DC sump return pump.

Flow can be adjusted to better match the aquarium overflow, sump configuration and plumbing resistance rather than relying only on valves to restrict an oversized fixed-speed pump.

Maximum Head up to 3.5 Metres

The JDP-3500 has an operating head range of approximately 1.7–3.5 metres, depending on the selected controller level.

Remember that actual aquarium flow decreases as vertical lift, hose length, elbows, valves and other plumbing restrictions increase.

The stated 3500 L/h figure therefore represents maximum pump output under appropriate conditions rather than guaranteed flow after all aquarium plumbing losses.

20 / 25 / 32mm Hose Connections

The JDP-3500 supports multiple outlet connection sizes:

• 20mm
• 25mm
• 32mm

This provides greater flexibility when integrating the pump into aquarium sump and filtration plumbing.

Quiet Brushless Pump Design

SunSun designed the JDP series for low-noise operation.

The brushless motor, ceramic shaft and electronically controlled operation help make the JDP-3500 suitable for aquariums installed in living rooms, offices and other environments where pump noise is undesirable.

Ceramic Shaft

The pump incorporates a ceramic shaft, selected for wear resistance and resistance to rust.

This is particularly useful for equipment that operates continuously in freshwater or marine aquarium environments.

Closed Impeller Design

SunSun uses a closed impeller design in the JDP series to improve hydraulic efficiency, lift and water output.

As with any aquarium return pump, the impeller should be inspected and cleaned periodically to prevent debris, calcium deposits and other contamination from reducing performance.

Locked-Rotor Protection

The JDP-3500 incorporates locked-rotor protection.

According to SunSun, power is cut when an impeller jam is detected, helping protect the pump from damage caused by a locked rotor.

This protection does not replace regular pump and impeller maintenance.

How to Select the Correct Pump Flow

Do not select an aquarium return pump based only on its maximum L/h rating.

Consider:

• Aquarium volume
• Sump volume
• Required turnover
• Vertical pumping height
• Hose diameter
• Hose length
• Number of elbows and bends
• Valves and fittings
• Other equipment installed in the return line

The JDP-3500’s adjustable output is useful because the final flow can be fine-tuned after installation.

SunSun JDP-3500 Specifications

JDP-3500 vs Larger JDP Pumps

The JDP-3500 is the first adjustable 5-level model in the larger JDP range.

• JDP-3500: 2300–3500 L/h
• JDP-6000: 3000–6000 L/h
• JDP-10000: 6000–10000 L/h
• JDP-18000: 10000–18000 L/h

Select the pump according to the required actual flow after allowing for aquarium head height and plumbing resistance.

Maintenance

• Disconnect the pump from power before maintenance
• Inspect and clean the impeller regularly
• Remove dirt and mineral deposits from the pump chamber
• Keep inlet openings free from obstruction
• Check hoses and fittings for restriction
• Never operate with damaged electrical components
• Use the correct SunSun-compatible controller and power supply

Buy SunSun JDP-3500 DC Pump in India

Buy SunSun JDP-3500 DC Variable Frequency Pump in India from Aqua Zones for controllable aquarium circulation, sump return and filtration applications.

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