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The NICE-POWER R-SPS3040-R Regulated DC Power Supply is designed for electrical engineering education, electronics laboratory experiments, and practical circuit testing. With an adjustable 0–30V DC output, a maximum output current of 40A, and a rated output power of 1200W, it provides a controllable DC source for compatible teaching circuits, electronic assemblies, and student engineering projects.
For classroom demonstrations and laboratory exercises, this DC bench power supply combines front-panel voltage and current adjustment, four-digit voltage and current displays, a power readout, and Output ON/OFF control. The CV/CC indicators help students observe the power supply's operating mode as they investigate circuit behavior under different test conditions. The R-SPS3040-R version also features USB, RS-232, and RS-485 communication interfaces for connection to compatible equipment.
The adjustable 0–30V DC output gives students and instructors a practical way to supply compatible electronic circuits at different voltage settings. It supports laboratory exercises involving DC circuit behavior, voltage-dependent circuit response, and prototype evaluation within the power supply's rated specifications.
With a maximum output current of 40A and a rated output power of 1200W, the R-SPS3040-R can supply compatible circuits and electronic assemblies that require higher-current DC power. The output settings must remain within the power supply's voltage, current, and power limits, as well as the requirements of the connected circuit.
The front-panel digital display shows voltage and current readings, while the power readout provides an additional view of output power. These readings help students compare operating conditions, record measurements during experiments, and better understand the relationship between voltage, current, and power.
The constant-voltage (CV) and constant-current (CC) indicators show the power supply's current operating mode. During suitable laboratory exercises, instructors can use these indicators to help students understand the difference between constant-voltage and constant-current operation.
The encoder knobs provide front-panel adjustment of voltage and current settings. Students can change the output settings during supervised experiments and observe how compatible circuits respond to different DC supply conditions.
The front-panel Output ON/OFF control lets users enable or disable the DC output without using the main power switch. This provides a convenient way to manage the output when preparing a laboratory experiment or before changing circuit connections.
The R-SPS3040-R version includes USB, RS-232, and RS-485 communication interfaces for connection to compatible equipment. These interfaces provide options for laboratory setups that require communication connections. Actual communication and control capabilities depend on the supported protocol, commands, and compatible software.
By combining adjustable DC output, voltage and current readings, power display, and CV/CC status indicators, the R-SPS3040-R supports practical learning activities in electrical engineering and electronics. Its features help students work with real power supply settings and observe circuit behavior during suitable experiments.
Suitable for supervised classroom demonstrations and laboratory exercises involving adjustable DC power, electrical measurements, and basic power supply operating principles.
Provides an adjustable DC source for compatible circuit experiments in which students observe voltage and current readings under different supply conditions.
Supports practical testing of electronic circuits, components, and assemblies that operate within the power supply's rated output limits.
Provides adjustable DC power for student-designed circuit prototypes and electronic projects that require a compatible 0–30V supply.
The CV/CC indicators allow students to observe whether the power supply is operating in constant-voltage or constant-current mode during suitable demonstrations and experiments.
Suitable for electrical engineering training benches and electronics laboratories where adjustable DC power, visible output readings, and front-panel output control are needed.
The USB, RS-232, and RS-485 interfaces provide connection options for compatible equipment and communication arrangements. Check interface requirements and software compatibility before incorporating the supply into a computer-based laboratory setup.
Inspect the power supply and included accessories upon delivery. Check the unit's physical condition, input power requirements, output terminals, and communication interfaces before operating the equipment.
Before connecting a teaching circuit, verify its required voltage, polarity, and expected current consumption. Set appropriate output values, operate within the power supply's rated voltage, current, and power limits, and use suitably rated wires and connectors. Keep ventilation openings unobstructed and switch the output off before changing circuit connections.
Use the power supply according to its product documentation and the laboratory's safety procedures. Confirm that the connected circuit is suitable for the selected DC output before enabling the supply.
Before connecting a computer or external device through USB, RS-232, or RS-485, verify the required protocol, supported commands, and software compatibility. The presence of these interfaces does not guarantee compatibility with every software platform or remote-control function.
For warranty coverage, returns, and after-sales assistance, refer to the seller's published store policies and the documentation supplied with the product.
| Specification | Details |
|---|---|
| Brand | NICE-POWER |
| Series | R-SPS High Power Basic Series |
| Model | R-SPS3040-R |
| Product Type | Regulated DC Power Supply |
| Output Voltage | 0–30V |
| Output Current | 0–40A |
| Rated Output Power | 1200W |
| Rated Operating Temperature | 0°C–40°C |
| Voltage Display | Four-digit digital display |
| Current Display | Four-digit digital display |
| Power Display | Supported |
| Adjustment Method | Encoder knob |
| Output Control | Front-panel Output ON/OFF |
| Operating Status Indicators | CV/CC |
| Communication Interfaces | USB / RS-232 / RS-485 |
| Load Regulation – Voltage | ≤0.1% + 10mV |
| Load Regulation – Current | ≤0.1% + 2.5mA |
| Line Regulation – Voltage | ≤0.01% + 2.5mV |
| Line Regulation – Current | ≤0.1% + 2.5mA |
| Setting Resolution – Voltage | 10mV |
| Setting Resolution – Current | 10mA |
| Readback Resolution – Voltage | 10mV |
| Readback Resolution – Current | 10mA |
| Setting Accuracy – Voltage | ≤0.05% + 10mV |
| Setting Accuracy – Current | ≤0.01% + 10mA |
| Readback Accuracy – Voltage | ≤0.05% + 10mV |
| Readback Accuracy – Current | ≤0.01% + 10mA |
| Ripple – Voltage (20Hz–20MHz) | ≤400mVp-p; ≤60mVrms |
| Ripple – Current (20Hz–20MHz) | ≤20mArms |
| Rise Time (No Load) | ≤100ms |
| Rise Time (Full Load) | ≤150ms |
| Fall Time (No Load) | ≤15s |
| Fall Time (Full Load) | ≤50ms |
| Dynamic Response | ≤20ms |
| Efficiency | ≥85% |
| Product Dimensions | Approximately 33 × 27 × 9cm (series specification) |
| Net Weight | Approximately 3.7kg (series specification) |
| Package Dimensions | Approximately 42 × 33 × 15cm (series specification) |
| Package Weight | Approximately 5.3kg (series specification) |
| Packaging Information | Series specification lists 4 units per carton |
The NICE-POWER R-SPS3040-R Regulated DC Power Supply brings adjustable DC output and practical front-panel monitoring to electrical engineering education. Its 0–30V voltage range, maximum 40A output current, and 1200W rated power support compatible circuit experiments, electronics laboratory work, and student engineering projects.
The four-digit voltage and current displays, power readout, encoder knob adjustment, and CV/CC indicators give students direct access to essential power supply settings and operating information. Output ON/OFF control makes routine experiment setup more convenient, while USB, RS-232, and RS-485 interfaces provide connection options for compatible equipment.
For instructors building practical electronics exercises and students learning to test real circuits, the R-SPS3040-R offers adjustable DC power and clear operating feedback in one bench power supply, helping bridge classroom concepts with hands-on electrical engineering practice.
30-Day return and refund guarantee (Refer to our Refund Policy), 2-year warranty (only available for orders purchased directly from kuaiquinstrument.com), lifetime technique support by KUAIQU.
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Shenzhen Kuaiqu Electronic Co., Ltd. was founded in 2014 and is located in Shenzhen City, Guangdong Province. It is a scientific and technological enterprise integrating,production and sales. Specializing in the production of DC stabilized power supply, variable frequency power supply, switching power supply, program-controlled power supply and other 100 kinds of measuring teaching instruments and industrial special equipment.
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