LED
LCD
Product Description
The AD22-22FSV Square Digital AC Voltage Display Meter is a compact, panel-mount indicator designed for real-time electrical voltage monitoring in control panels, distribution boxes, and industrial equipment. Featuring a bright, easy-to-read red digital LED readout housed in a standard 22mm mounting bezel, it provides instant visual feedback on alternating current (AC) lines to ensure safe and stable operation.
Essential for electrical switchboards, generator control panels, and custom power distribution enclosures, this reliable meter combines high-visibility monitoring with effortless screw-terminal installation.
блондин Safety & Wiring Tip: This meter is designed for AC mains voltage monitoring. Always disconnect power at the main breaker before wiring or servicing control panels to prevent severe electrical shock.
Technical & Architectural Highlights
High-Visibility LED Display: Bright red digital numeric readout ensures clear visibility from a distance, even in dimly lit electrical enclosures.
Standard 22mm Panel Mount: Fits standard industrial pushbutton and indicator cutouts for quick, secure snap-in and threaded collar installation.
Compact Square Bezel: Modern square profile provides a clean, professional aesthetic on custom control panels and switchboards.
Screw-Terminal Connections: Rear screw terminals ensure secure, vibration-resistant electrical wiring without the need for specialized connectors.
Technical Specifications
| Parameter | Value / Specification |
| Product Type | AC Digital Panel Voltmeter |
| Model | AD22-22FSV |
| Display Color | Red LED |
| Mounting Aperture | 22 mm Diameter |
| Voltage Measurement Range | AC 60V – 500V (Typical for AD22 AC series) |
| Shape / Form Factor | Square Head Panel Meter |
| Terminal Type | Screw Terminals |
Applications
Electrical Control Panels: Monitoring live mains voltage across phases in industrial machinery and distribution boxes.
Generator & Power Enclosures: Tracking output voltage levels in backup power generation systems.
DIY Workshop Power Rigs: Adding a professional voltage readout to custom bench power supplies and distribution strips.
What’s in the Box
1 x AD22-22FSV Square Digital AC Voltage Display Meter (Red).
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Pinout / Terminal Configuration
The rear of the meter features two power/input terminals:
| Terminal Markings | Description |
| Terminal X1 (L) | AC Live / Voltage Input Line |
| Terminal X2 (N) | AC Neutral / Return Line |
