Load Bank

GROADA-AC120V-50KVA-RCD inverter load bank

★★★★★
Main Products:
  • AC Load Bank : R / RL / RLC / RCD
  • DC Load Bank : DC5V - 2000V, 0A - 5000A


ModelAC220V-5KW-RCDAC220V-10KW-RCDAC220V-15KW-RCDAC220V-20KW-RCDAC380V-30KW-RCDAC380V-50KW-RCDAC380V-60KW-RCDAC380V-100KW-RCDAC380V-200KW-RCD
Rated powerR=5KWR=10KWR=15KWR=20KWR=30KWR=50KWR=60KWR=100KWR=200KW
RCD=5KVARCD=10KVARCD=15KVARCD=20KVARCD=30KVARCD=50KVARCD=60KVARCD=100KVARCD=200KVA
Input current0-22A0-45A0-45A0-90A0-45A0-300A0-450A0-600A0-750A
Size (width * depth * height mm)500*600*800500*600*1000500*600*1100500*750*1100600*850*1400600*850*1600600*850*1850700*1000*18001100*1400*1800
Weight50KG80KG100KG130KG200KG300KG350KG450KG550KG
Input voltageAC220/230VAC380/400V
Other input voltage can be customized according to requirements
Minimum loading100W100W100W100W100W1KW1KW1KW1KW
Other minimum loading power can be customized according to requirements
Overall accuracy3% (other accuracy requirements can be customized according to requirements)
power factorPF=0.6~1.0
peak coefficient2 to 3
Control modeLocal manual/remote host computer (local manual control mode: circuit breaker/button/touch screen three-way optional, other methods can be customized as required)
Remote InterfaceRS232/RS485/USB/RJ45/CAN/GPIB (other interface modes can be customized according to requirements)
Protection functionEmergency stop protection, over-temperature protection, fan load interlock protection, grounding protection (select over-voltage protection, over-current protection, short-circuit protection, fan overload, insufficient air volume)
Working power supplyAC220VAC220V/AC380V
Display accuracy0.5 level (other explicit precision can be customized according to requirements)
Display parametersVoltage, current, power, frequency, power factor, etc. (other explicit methods can be customized according to requirements)
Cold sure waySide air inlet and upper air outlet (other air outlet methods can be customized according to requirements)
Protection levelIP20 (other protection level can be customized according to requirements)
Appearance colorRAL7035 (other colors can be customized according to requirements)
Working temperature-10 ℃ ~ 55 ℃
Relative humidity≤95%RH
Altitude≤ 2500 m


1. Introduction — Why Choose an Inverter Load Bank for Critical Power Systems

In modern power infrastructure, precision in testing and validating source behavior under real load conditions is essential. The AC 120V 50 kVA RCD inverter load bank from GROADA is engineered to simulate real electrical loads for inverter, UPS, generator, and battery systems under safe and repeatable conditions.

Using resistive, reactive, or combined load simulation, inverter load banks help reveal latent performance or stability issues before they can impact operations. This device is particularly valuable for:

  • Commissioning new power systems or inverters

  • Routine maintenance of energy storage systems

  • Stress testing of backup generators and UPS

  • Ensuring system compliance with safety and regulatory standards


2. Product Overview & Key Features

Here is a high-level breakdown of the features your visitors will care about — and that will help search engines understand the page’s relevance and depth:

  • Rated Output: 120 V AC, 50 kVA

  • RCD protection & safety: includes Residual Current Device to protect operator and equipment

  • Inverter-compatible operation: supports bidirectional or controlled load injection to mimic inverter behavior

  • Precise load control: multi-step or continuous control, with accurate current/voltage metering

  • Cooling & thermal management: forced air cooling with intelligent fan control to manage resistor element temperature

  • Monitoring & communication: local display and optional remote interface (e.g. via RS-485, Ethernet, or other protocol)

  • Modular & maintainable design: replaceable resistor modules, easy access panels

  • Protection & safety features: overcurrent, overtemperature, short circuit, emergency stop

By emphasizing these aspects, the page signals both to users and to Google that it contains useful, detailed product content rather than shallow marketing fluff.


3. Technical Background & Industry Context

To build trust and authority, it’s useful to situate this product into its broader technical and market context:

What is a load bank?
A load bank is a device that imposes an electrical load on a power source in a controlled manner, converting that energy (usually via resistors) to heat, often dissipated by forced-air or water cooling systems. This allows engineers to test generators, UPSs, inverters, or batteries under known, stable loads without relying on unpredictable real-world load behavior.

Why inverter-compatible load banks?
Traditional resistive load banks impose static loads; inverter load banks, however, can more closely mimic dynamic power conversion behaviors (e.g. voltage drop, harmonic response) and can be used in conjunction with power electronics. This is especially relevant in modern microgrids, renewable systems, and energy storage test benches.

Market trends & demand

  • The global load bank market is projected to grow at a compound annual growth rate (CAGR) of ~3.7% from 2025 to 2032, expanding from ~$300 million in 2025 to ~$387 million by 2032. 

  • Drivers include increased deployment of data centers, renewable energy integration, stricter power reliability standards, and wider use of battery/inverter systems. Enercon+1

  • In Asia-Pacific, especially China and India, industrial expansion and power infrastructure upgrades are accelerating demand for load testing and commissioning equipment. 

By referencing these data points (with citations), the page demonstrates that the product is relevant in a growing, technology-driven sector.


4. Applications & Use Cases

To further increase relevance and user trust, lay out concrete scenarios where your product adds value:

ApplicationBenefit / Use Case
Generator commissioning & acceptance testingVerify full-load performance, thermal stability, load transient response
UPS & battery system verificationConfirm DC–AC inverter behavior under load, simulate real consumption profiles
Renewable + storage systemsDuring debugging/integration, impose known loads on inverter systems to test control logic
Maintenance & preventive testingRoutinely exercise systems to avoid “wet stacking,” carbon build-up, or capacity derating
Data center & mission critical facilitiesValidate that backup systems can seamlessly take over under full load

Including real user scenarios helps Google and users see your page as practically useful, boosting engagement and dwell time (factors that support SEO).


5. Technical Considerations & Best Practices

To help engineers / purchasers make informed decisions, you can include guidance or best practices:

  • Sizing margin: Choose a load bank with at least 20% headroom above expected maximum load to ensure longevity and safety under transient stress.

  • Power factor and reactance: If users need to test non-unity power factor loads (e.g. inductive or capacitive), consider combining with reactive modules or using R / L / C combination load banks. 

  • Cooling & ambient conditions: The design must account for ambient temperature, ventilation constraints, and altitude.

  • Measurement accuracy: Use high-precision voltage and current sensors, with calibration, to ensure valid test data.

  • Safety and compliance: Design must comply with relevant electrical safety standards (e.g. IEC, UL, local codes), use proper insulation, earthing, overcurrent protection, and safe operator interface.

  • Maintenance tips: Periodic inspection of resistor elements, fan filters, connection integrity, insulation resistance, and firmware upgrades (if remote control is supported).

By offering this level of detail, the page becomes more than a sales pitch — it’s a resource, strengthening EEAT.


6. Why Trust GROADA — Company Credibility

To boost trust (the “T” in EEAT), you should include or anchor (in surrounding parts of the site) elements like:

  • Company credentials & history: e.g. years of experience in power test / electrical load equipment manufacturing

  • Certifications & standards compliance: ISO, CE, UL, or others

  • Case studies / project references: real projects where this unit or similar ones were deployed (data centers, utility projects, etc.)

  • Third-party validation / testimonials: quotes from users, labs, or certifications

  • After-sales support & warranty: spare parts, calibration service, technical support coverage

In the body you can include a brief paragraph like:

GROADA is a specialist in power test solutions, with X years of experience designing reliable load banks. All units are factory tested, and we provide global after-sales support, spare parts, and calibration service to assure your long-term operational reliability.


7. Call to Action (without hard linking)

Conclude with a user-focused, persuasive call to action, e.g.:

For detailed specifications, drawings, or customized configurations of the 120 V 50 kVA RCD inverter load bank, please contact our technical team. Let us help tailor a load testing solution that fits your system needs — from initial sizing to full test commissioning and long-term support.

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