{"product_id":"product-compliance-pre-testing-ac-variable-frequency-power-source-350va-500va-1kva-with-rs-232c-rs-485-communication","title":"Product Compliance Pre-testing AC Variable Frequency Power Source 350VA 500VA 1KVA with RS-232C RS-485 Communication","description":"\u003cdiv data-zone-id=\"0\" data-line-index=\"1\" data-line=\"true\"\u003e\n\u003ch3 class=\"heading-h2\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0705\/8027\/3329\/files\/AC_POWER_SOURCE.png?v=1782713534\" alt=\"\"\u003e\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003ch1\u003e\u003cspan\u003eProduct Compliance Pre-testing AC Variable\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan\u003eFrequency Power Source 350VA 500VA 1KVA with\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan\u003eRS-232C RS-485 Communication\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eProgrammable AC Power Supply for Product Compliance Pre-testing\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis programmable AC variable frequency power source is designed for product compliance pre-testing, laboratory evaluation, and AC input condition verification. Available in three capacity options — Model 1 (350VA), Model 2 (500VA), and Model 3 (1KVA) — it provides an adjustable AC output voltage range of 0.1–300V and a variable output frequency range of 45–400Hz. These adjustable output conditions allow engineers and testing technicians to evaluate compatible electronic products under different AC power supply conditions before formal compliance testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBefore submitting electronic products for compliance testing, manufacturers may need to check whether their products operate under specified input voltage and frequency conditions. This programmable AC power supply supports two voltage ranges, from 0.1–150.0V in the low-voltage range and 150.1–300.0V in the high-voltage range, with a frequency adjustment step of 0.1Hz. It also provides three groups of parameter preset storage for output voltage, frequency, and current limit settings, together with convenient 50Hz and 60Hz quick selection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor testing environments that require programmable power control, the entire series comes standard with RS-232C and RS-485 communication interfaces and supports the Modbus RTU protocol. It can connect to compatible PLCs, host computers, and automated testing systems. Combined with electrical parameter displays, voltage soft start, and multiple protection functions, this series provides flexible AC power conditions for product pre-compliance evaluation and laboratory testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eAdjustable 0.1–300V AC Output for Input Voltage Verification\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThis programmable AC power supply provides two selectable output voltage ranges: 0.1–150.0V in the low-voltage range and 150.1–300.0V in the high-voltage range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe adjustable AC output allows users to establish different input voltage conditions for compatible electronic products during pre-compliance evaluation. Engineers can select the required voltage according to the product's rated input specifications and check its operating condition before formal compliance testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e45–400Hz Variable Frequency Output\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWith an adjustable output frequency range of 45–400Hz and a frequency adjustment step of 0.1Hz, this AC variable frequency power source supports product evaluation under different AC frequency conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUsers can adjust the output frequency according to the requirements of the device under test. This is useful for checking compatible electronic products designed for different power frequencies and evaluating their operation under selected non-standard frequency conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eThree Groups of Parameter Preset Storage\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe power supply supports three groups of preset parameters, including output voltage, output frequency, and output current limit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUsers can store commonly used power settings and recall them when performing repeated pre-compliance checks. This reduces repeated manual adjustments and makes it more convenient to establish consistent AC input conditions for different products or testing procedures.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eQuick 50Hz \/ 60Hz Power Frequency Selection\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBuilt-in 50Hz and 60Hz quick selection functions allow users to switch between two commonly used AC power frequency standards and their corresponding voltage-frequency combinations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis feature is useful when checking compatible electronic products intended for different regional power environments. It provides a convenient way to establish common frequency conditions during product pre-testing and laboratory evaluation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRS-232C \/ RS-485 Programmable Communication\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe entire series comes standard with RS-232C and RS-485 communication interfaces and supports the Modbus RTU communication protocol.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe power supply can connect to compatible PLCs, host computers, and automated testing systems for programmable AC output control. This allows users to integrate adjustable voltage and frequency settings into a larger product testing setup, supporting repeatable power supply conditions during pre-compliance evaluation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eElectrical Parameter Display for Test Observation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe front-panel display provides readings for output voltage, current, power, frequency, and power factor.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese displayed electrical parameters help engineers observe the power supply and connected load conditions during product pre-testing. The display provides 0.1V voltage resolution, 0.1Hz frequency resolution, and different current display resolutions for the low- and high-voltage ranges.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMulti-Level Overload Protection\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe power supply features a two-stage overload protection mechanism that disconnects the output when the output current exceeds the rated operating range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWhen the output current exceeds 1.0 times but does not exceed 1.1 times the rated current, the output is disconnected after a 15-second delay.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWhen the output current reaches 1.1 times and up to 1.2 times the rated current, the output is disconnected after a 5-second delay.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThis staged protection design provides different response times according to the overload level.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eComprehensive Protection with Fault Indication\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe power supply includes overcurrent, overvoltage, overtemperature, and short-circuit protection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen a protection condition is triggered, a visual alarm indication is provided, and the front panel displays the corresponding fault code to help users identify the protection status.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe overtemperature protection threshold is 85°C ± 5°C at the power device.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVoltage Soft-Start Function\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe voltage soft-start function gradually increases the output voltage when the output is established, helping reduce sudden voltage changes and inrush impact on the connected device.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis function is useful during product pre-testing when a controlled voltage rise is preferred for powering compatible electronic equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eModel Selection and Rated Output Capacity\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eParameter\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eModel 1\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eModel 2\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eModel 3\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated Capacity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e350VA\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e500VA\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1000VA (1KVA)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput Supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSingle-phase AC 220V ±10%, 50Hz ±5Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSingle-phase AC 220V ±10%, 50Hz ±5Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSingle-phase AC 220V ±10%, 50Hz ±5Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eLow Voltage Range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1–150.0V\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1–150.0V\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1–150.0V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHigh Voltage Range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e150.1–300.0V\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e150.1–300.0V\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e150.1–300.0V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutput Frequency\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e45–400Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e45–400Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e45–400Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFrequency Adjustment Step\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated Output Current at 120V\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.9A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.2A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8.4A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated Output Current at 240V\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.45A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.1A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.2A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConversion Efficiency\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≥80%\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≥80%\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≥80%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cspan\u003eGeneral Performance Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eParameter\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFrequency Stability\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≤0.1%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eVoltage Stability\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≤1%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eLoad Regulation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≤1%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSource Voltage Effect\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≤1%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutput Voltage THD\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≤2% (at rated resistive load)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutput Crest Factor\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.41 ±0.10\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFrequency Display Accuracy\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1% of reading\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFrequency Display Resolution\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eVoltage Display Accuracy\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±(1% of reading + 0.1% of range)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eVoltage Display Resolution\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCurrent Display Accuracy\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±(1% of reading + 0.1% of range)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCurrent Display Resolution\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.001A (low-voltage range) \/ 0.1A (high-voltage range)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Display Accuracy\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±(1% of reading + 0.1% of range)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Display Resolution\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1W \/ 0.1kW\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Factor Display Accuracy\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±0.1\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Factor Display Resolution\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.001\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cspan\u003eFunctions and Protection\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eParameter\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eParameter Preset\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3 groups of output voltage, frequency, and current limit settings\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eQuick Frequency Selection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50Hz \/ 60Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOverload Protection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.0–1.1 times rated current: 15s delay; 1.1–1.2 times rated current: 5s delay\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProtection Functions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOvercurrent, overvoltage, overtemperature, and short-circuit protection\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFault Indication\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVisual alarm indication and corresponding fault code on the front panel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOvertemperature Protection Threshold\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e85°C ±5°C at the power device\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCommunication Interfaces\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRS-232C \/ RS-485\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCommunication Protocol\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eModbus RTU\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eVoltage Soft Start\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSupported\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cspan\u003eMechanical and Environmental Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eParameter\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProtection Rating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eEnclosure Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDesktop\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-10°C to 40°C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Humidity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10% to 90% RH (non-condensing at 25°C)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum Operating Altitude\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≤2000m\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003eModel Selection Tips\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eModel 1 – 350VA for Low-Power Product Pre-testing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eModel 1 provides a rated capacity of 350VA, making it suitable for low-power product development, precision instrument power supply testing, and pre-compliance evaluation of low-power electronic devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is a practical choice for laboratory applications where adjustable AC voltage and frequency are required to check the input power conditions of relatively low-power products before formal compliance testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eModel 2 – 500VA for Medium-Power Compliance Pre-testing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eModel 2 offers a rated capacity of 500VA and is suitable for medium-power electronic products, household appliance pre-compliance evaluation, and electronic production line testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts adjustable voltage and frequency output, three groups of preset parameters, and programmable communication interfaces support repeatable AC power conditions during laboratory evaluation and product preparation before formal compliance testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eModel 3 – 1KVA for Higher-Power Product Pre-testing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eModel 3 provides a rated capacity of 1000VA (1KVA), offering higher output capacity for industrial electronic product evaluation, larger motor drive testing, and data center equipment power input checks.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is suitable for pre-compliance applications that require greater AC output capacity while retaining adjustable voltage, variable frequency, and programmable communication functions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eApplication Scenarios\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eElectronic Product Pre-compliance Evaluation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eBefore formal compliance testing, electronic product manufacturers may need to verify whether their products operate under specified AC input voltage and frequency conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis programmable AC power supply provides adjustable voltage from 0.1V to 300V and variable frequency from 45Hz to 400Hz. Engineers can select suitable input conditions for compatible electronic products and observe the displayed electrical parameters during preliminary evaluation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAC Input Voltage and Frequency Verification\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDifferent electronic products may have specific AC input voltage and frequency requirements. The adjustable output allows users to establish selected power conditions and check the operating response of compatible products before submitting them for formal testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 50Hz \/ 60Hz quick selection function also makes it convenient to evaluate products designed for common regional power frequency standards.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHousehold Appliance Compliance Pre-testing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eHousehold appliances intended for different markets may have different input voltage and frequency requirements. The power supply can provide adjustable AC input conditions for compatible appliances during preliminary functional and compliance-related evaluation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eModel 1, Model 2, and Model 3 offer different rated capacities, allowing users to select an appropriate option according to the power requirements of the appliance under test.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eElectronic Power Adapter Pre-testing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe programmable voltage and frequency output can provide adjustable AC input conditions for compatible electronic power adapters during laboratory evaluation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUsers can select suitable input settings according to the adapter's rated input specifications and observe the displayed voltage, current, power, and frequency readings during preliminary testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMotor and Drive Product Evaluation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eFor compatible AC motors and drive-related electronic products, the power supply provides adjustable voltage and variable frequency output within its rated capacity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 45–400Hz frequency range allows users to establish different AC supply frequency conditions for preliminary evaluation of motor-related electrical equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLED Driver and Lighting Product Pre-testing\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe adjustable AC voltage and frequency output can supply compatible LED drivers and lighting products during preliminary evaluation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUsers can select appropriate input conditions according to the rated specifications of the lighting product and observe the electrical parameters displayed by the power supply. This supports preliminary power input checks before further product testing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInternational Market Power Compatibility Checks\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eElectronic products intended for international markets may need to operate under different regional AC power frequency conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith adjustable voltage, variable frequency, and built-in 50Hz \/ 60Hz quick selection, this power supply helps users establish common power conditions when evaluating compatible products for different markets.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAutomated Pre-compliance Testing Setups\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eWith standard RS-232C and RS-485 communication interfaces and Modbus RTU protocol support, the power supply can be integrated into compatible PLC-based, host-computer-based, and automated testing systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt supports programmable AC output control as part of a larger testing setup, helping users establish repeatable voltage and frequency conditions for product pre-compliance evaluation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Choose This Programmable AC Power Supply?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis programmable AC variable frequency power supply combines adjustable 0.1–300V output, a 45–400Hz frequency range, three groups of parameter preset storage, and standard RS-232C \/ RS-485 communication interfaces in one desktop unit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith three capacity options — Model 1 (350VA), Model 2 (500VA), and Model 3 (1KVA) — users can select a suitable output capacity according to the power requirements of different electronic products and pre-compliance testing setups.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 50Hz \/ 60Hz quick selection function, multi-level overload protection, comprehensive protection mechanisms, voltage soft start, and Modbus RTU communication support make this series suitable for product compliance pre-testing, AC input condition verification, laboratory evaluation, and programmable AC power applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBy providing adjustable AC voltage and frequency conditions, this series helps engineers perform preliminary power input and operating condition checks before formal compliance testing. It is a programmable AC power source for supporting pre-testing workflows, not a standalone certification or compliance measurement instrument.\u003c\/span\u003e\u003c\/p\u003e","brand":"Shenzhen Kuaiqu Electronic Co., Ltd","offers":[{"title":"Model 1(350VA)","offer_id":48144212852913,"sku":"GP60D03-W-1105-02","price":699.0,"currency_code":"USD","in_stock":true},{"title":"Model 2(500VA)","offer_id":48144212885681,"sku":"GP60D05-W-1105-02","price":749.0,"currency_code":"USD","in_stock":true},{"title":"Model 3(1000VA)","offer_id":48144212918449,"sku":"GP60D10-W-1105-02","price":929.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0705\/8027\/3329\/files\/Product_Compliance_Pre-testing_AC_Variable_Frequency_Power_Source_350VA_500VA_1KVA_with_RS-232C_RS-485_Communication-01.png?v=1793859400","url":"https:\/\/www.kuaiquinstrument.com\/es\/products\/product-compliance-pre-testing-ac-variable-frequency-power-source-350va-500va-1kva-with-rs-232c-rs-485-communication","provider":"KUAIQU Instrument Store","version":"1.0","type":"link"}