DC55E-12120S Micro Brushless DC Water Pump

NOTE: DC55E-12120S Water pum, 12VDC, rated power 54W @ 12VDC. 3-phase brushless DC design, soft start. Max. Static lift appr. 12m @ 212VDC and Max. Horizontal flow rate appr. 2000LPH @ 12VDC.

(CANNOT BE SELF-PRIMING; NO DRY WORK) Pay Attention: No dry work without water or with little water; otherwise, pump may be hurt. When users get pump, it’s recommended that a pre-test can be done in advance, then install to relevant application: get a bucket of water, locate the pump into water and power the pump with a matching DC power supply, check the work and performance of pump.

As to control box of pump, strictly speaking, it’s not recommended to be located in the water; if indeed have to, waterproof tape is recommended to be firmly wrapped in advance. Of course, location out of water is more recommended.

Package includes: 1 x DC55E-12120S Micro Brushless DC Water Pump, (No power supply is included: If power supply is AC/DC power adapter, output capacity of adapter should be 12VDC, 5A.)

Kindly Note: It is only the whole set of pump that is included, with rated voltage of DC power 12V. NO power supply is offered. About the rectangle-shaped metal box, it is the controlbox (brain) part of the pump product, and it is NOT power adapter. Please be not confused.

NEW FEATURE: DRY-RUN PROTECTION feature is added on the pump’s design in default. Pump works at rated voltage: When there exists insufficient in-flow or no in-flow (or significant bubble inside the in-flow), pump's DRY-RUN protection will be triggered: Pump will access status of stop-run-stop-run-stop-run---cycle. When in-flow comes sufficiently again, pump will then re-access normal run performance after seconds' latency. -- This DRY-RUN protection is aimed to protect our pump product from DRY RUN for long time in some context, which will physically damage the rotor and pump connection part. Pump could be dead due to long-time DRY RUN. This is a good protection. Yet, DRY-RUN itself is always not good thing.

Important Notes about Pump’s use & installation

• DC 12V power supply. No direct AC power powering or over-voltage powering.
• If it is AC/DC Power adapter, make sure that it can offer sufficient power to pump: output capacity be 12VDC, 4.5 or over (12V*4.5A ~ 54W). Note that Power supply cannot be placed in water or moisty location.
• Pump supports continuous long time work with relatively low noise at normal working environment. Land use or submersible installation can be either OK, yet pump cannot be self-priming. Make sure that fluid can actively flow passing through inlet/outlet because pump works via centrifugal force of high-speed rotation of impeller inside (to push/throw in-flow out). No long-time dry work without in-flow, or it may damage the pump (Even though DRY-RUN Protection is equiped.).

Dimension

[Wide applications] Low-voltage safety, high power-efficiency, low noise at normal work and supporting long-time continuous reliable running. This pump is widely applied for fountain landscape, medical equipment cooling circulation, air compressor cooling circulation, PC server water cooling, yacht/ vehicle water cooling, or other industrial, medical and household water processing systems. Pump cannot be self-priming, and it is important to make sure that there exists no dry run (especially for long time). Avoid impurities in the pumping systems.

About the use of micro brushless pump product, here are several notes and hope they can be helpful:

1, as micro brushless dc pump, it works via electronic commutation while not brush friction, so there exists no loss caused by brush friction. Pump works with relatively high efficiency. stator part is completely potted inside pump body with epoxy material and control circuit part is potted inside control box, completely physically separated from external fluid environment and completely waterproof.

2, Pump supports continuous long time work with relatively low noise at normal working environment.land use or submersible installation can be both OK, but it cannot be self-priming, just make sure that fluid can actively flow passing through inlet/outlet because pump works via centrifugal force of high-speed rotation of impeller inside (push/throw fluid out). No long-time dry work without fluid, or it may damage the pump.

3, Pump adopts soft-start mechanism and its start-up current increases gradually (step by step), so there exist no over-high start up current and is suitable for many stable power supply. Note that the max voltage of power supply is advised to be below 14DC(For model with 12VDC as rated voltage) when in application.

4, Pump can be suitable for high temperature fluid circulation application: note that when temperature is over 60C, the control box of pump is advised to be located in normal temperature environment for stability & reliability of electronics components inside control box, while pump body itself is of course OK to be located at high temperature fluid environment.

5, about power polarity: if naked wire, RED/BORWN wire is Positive, BLACK/BLUE wire is Negative; if DC head wire, Inner is Positive, Outer is Negative. Matching DC power supply.

6, to avoid possible misunderstanding of relevant parameters, here we also say something about flow rate value & max static lift value of pump products:

For static lift value, it means the max vertical height of flow column when outlet is connected with external matching hose/tube, when pump works at rated voltage.

For max flow rate value, it means the max flow rate of pump at horizontal level, when pump works at rated voltage. The higher the height, the lower the flow; when height reaches lift value, flow rate becomes zero.

Note that lift value and spraying/shooting height of pump are completely different. So dear users, please do not be confused by them.

Meanwhile, certain deviation of around +-10% is advised to be left when in relevant applications, to leave enough margin.