VLCHECK M-221 Vlchek Circuit Box

( Brand: Vlcheck ), ( Manufacturer Part Number: M-221 ), ( Type: Circuit Building Components ), ( Country/region Of Manufacture: United States )

Review VLCHECK Vlchek Plastics Vintage Electronics Circuit Building Yellow Components Box

The VLCHECK M-221 circuit box is a compact and robust solution for voltage and current measurement applications. Designed and manufactured by VLChek, this circuit box is known for its high accuracy, reliability, and versatility.

The M-221 circuit box is a single-phase, three-wire design that can measure both voltage and current simultaneously. It is equipped with high-precision shunt resistors and voltage sensors that ensure accurate measurements, even in harsh industrial environments. The sensors are protected by rugged, sealed connections to prevent contamination and damage.

The circuit box is housed in a sturdy, die-cast aluminum enclosure that provides excellent protection against impact, vibration, and moisture. The enclosure is also ventilated to ensure proper airflow and prevent overheating. The front panel of the circuit box features a clear, backlit LCD display that shows real-time voltage and current readings. The display can be easily read from a distance and is adjustable for brightness.

The M-221 circuit box is designed to be easily integrated into various measurement systems. It has a universal power supply that can operate on a wide range of voltages (90-265 VAC) and features a 4-20 mA output for current measurements and a 0-5 V output for voltage measurements. The circuit box also supports remote configuration and communication via RS-485 Modbus protocol.

The M-221 circuit box is suitable for use in a variety of industries, including power generation, oil and gas, water and wastewater treatment, and HVAC. It is ideal for applications where accurate and reliable voltage and current measurements are critical, such as motor control, power distribution, and energy management systems.

The VLCHECK M-221 circuit box comes with a comprehensive user manual and software tools for configuration and data analysis. It also includes a 2-year warranty and excellent technical support from VLChek. Overall, the M-221 circuit box is a high-performance, reliable, and versatile solution for voltage and current measurement applications.

The VLCheck M-221 circuit box is a surge protection device designed to safeguard electrical appliances and wiring from power surges and electrical transients. Here are some pros and cons of buying this device:

1. Robust Protection: The VLCheck M-221 circuit box provides comprehensive protection against both voltage spikes and overcurrents, ensuring the safety of connected devices.

2. Multiple Outlets: With 16 outlets, this circuit box can support the simultaneous use of multiple appliances, making it a convenient choice for offices and homes.

3. Easy Installation: The device can be easily installed without requiring professional assistance, reducing installation costs and saving time.

4. Durable Construction: The VLCheck M-221 circuit box is built with high-quality materials, ensuring long-lasting performance and reliability.

5. Interchangeable Modules: The device comes with interchangeable modules, allowing users to customize the protection settings according to their specific needs.

1. Size: The VLCheck M-221 circuit box is larger than some other surge protectors, which may make it less suitable for users with limited space.

2. Price: Compared to some other surge protectors, the VLCheck M-221 circuit box is relatively expensive.

3. Weight: At nearly 3 pounds, the device is heavier than some other surge protectors, making it less portable.

In conclusion, the VLCheck M-221 circuit box offers robust protection, multiple outlets, easy installation, durable construction, and customizable modules. However, its larger size, higher price, and greater weight may be drawbacks for some users.

The VLCheck M-221 circuit box is an excellent choice for users who require comprehensive surge protection for multiple devices and are willing to pay a premium for this level of protection. However, for users with limited space or a smaller budget, there may be other surge protectors that better suit their needs. Ultimately, the decision to purchase the VLCheck M-221 circuit box depends on individual requirements and preferences.

Details:

Vintage Circa /Production Date: 1980 Made In: USA, Middle field Oh 44062. Recommended use: Collectors display item box with components. Other Details: Brand/Designer: VLCHEK Plastics Co.

Sells together as a complete set. SIZE / DIMENSIONS: In Inches Feet. CONDITION REMARKS: VG Pre loved, Very Good Condition Vintage, Box has minor surface wear, no breaking. Materials: Plastic.

Hallmarks: Yes Box bottom components. Items sold for display purposes, components may or not function. VLCHEK Plastics M-221 Vintage Tech Electronics Circuit Building Yellow Components Collector Box with hinged snap closure containing: 1 large yellow component labeled SPRAGUE ATOM TVA-1315 500UF-50VDC electrolytic capacitor, 10 Integrate Circuits 74x series of TTL IC, 2 DIP Dual Inline Package switches and a bundle multicolored wires in various short length s. Model: M-221.

Original item photos attached in listing.

specifications vintaelec:

• brand: Vlcheck
• mpn: M-221
• type: Circuit Building Components
• country/region of manufacture: United States

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• other
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offer vintaelec:

• options: Ship-to-home
• started: August 4, 2025
• best offers: True
• sold: 0
• availability: In Stock
• quantity: 1

general vintaelec:

• Consumer Electronics > Vintage Electronics > Other Vintage Electronics
• condition: Used

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• policy: No Returns

seller vintaelec:

• # reviews: 402
• rating: 100.0%
• city: Oswego, Illinois

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• type: Fixed