{"product_id":"din-rail-ac-ammeter-voltmeter-digital-display-ac-20-500v-100a","title":"DIN Rail AC Ammeter \u0026 Voltmeter – Digital LED AC 20-500V","description":"\u003ch2\u003eDIN Rail AC Ammeter \u0026amp; Voltmeter | Digital LED Display | AC 20–500V \/ 0–100A\u003c\/h2\u003e\n\n\u003cp\u003eMonitor your electrical systems with confidence using this compact \u003cstrong\u003eDIN Rail AC Ammeter and Voltmeter\u003c\/strong\u003e. Designed for industrial, commercial, and residential applications, this dual-function meter simultaneously displays \u003cstrong\u003eAC voltage (20–500V)\u003c\/strong\u003e and \u003cstrong\u003eAC current (0–100A)\u003c\/strong\u003e on a bright, high-definition LED screen — giving you real-time electrical data at a glance.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Measurement:\u003c\/strong\u003e Reads AC voltage from 20–500V and AC current from 0–100A in a single, space-saving unit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear LED Display:\u003c\/strong\u003e High-definition screen with wide viewing angle and large, easy-to-read digits — no squinting required, even across the room.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuick DIN Rail Install:\u003c\/strong\u003e Compact 85×50×37mm body fits a standard 35mm DIN rail in a 2P mounting position. Simple wiring and clear model parameters make setup fast and straightforward.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Application:\u003c\/strong\u003e Ideal for monitoring AC voltage and current in distribution boards, control panels, and a broad range of industrial and commercial electrical systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Build:\u003c\/strong\u003e Constructed from high-quality PC flame-retardant material and ABS for strong impact resistance and long-term reliability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Battery Required:\u003c\/strong\u003e Powered directly by the monitored circuit — no batteries needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC Ammeter \/ Voltmeter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eC45-2042VA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePC (flame-retardant), ABS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85 × 50 × 37 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 20–500V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–100A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e35mm DIN Rail (2P position)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot required\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× AC Ammeter \/ Voltmeter (C45-2042VA)\u003c\/li\u003e\n  \u003cli\u003e1× Current Transformer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Usage Notes\u003c\/h3\u003e\n\u003cp\u003e⚠️ This instrument is designed for standard sinusoidal AC circuits only. \u003cstrong\u003eDo NOT use\u003c\/strong\u003e with batteries, electric vehicles, circuits with frequent starts, non-sinusoidal inverters, soft starters, or frequency converters — doing so may damage the instrument.\u003c\/p\u003e\n\u003cp\u003eColors in product images may vary slightly due to monitor brightness and lighting conditions. Minor measurement deviations (±tolerance) are normal.\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltage and current ranges does the C45-2042VA ammeter voltmeter support?\u003c\/h4\u003e\n\u003cp\u003eA: The C45-2042VA measures AC voltage from 20V to 500V and AC current from 0 to 100A, making it suitable for a wide range of residential, commercial, and industrial electrical monitoring applications.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I install this DIN rail ammeter voltmeter?\u003c\/h4\u003e\n\u003cp\u003eA: Installation is straightforward — simply snap the unit onto a standard 35mm DIN rail in the 2P mounting position, connect the wiring according to the clearly marked terminals, and attach the included current transformer around the monitored conductor. No tools or batteries are needed.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use this meter with an inverter or variable-frequency drive (VFD)?\u003c\/h4\u003e\n\u003cp\u003eA: No. This meter is designed exclusively for standard sinusoidal AC circuits. Using it with non-sinusoidal inverters, soft starters, frequency converters, or circuits with frequent starts can damage the instrument and will void its accuracy.\u003c\/p\u003e\n\u003ch4\u003eQ: Is the LED display easy to read from a distance?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The high-definition LED display features a wide viewing angle and large, bright digit segments, allowing accurate readings from across a control room or panel without needing to be directly in front of the unit.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltage and current ranges does the C45-2042VA ammeter voltmeter support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The C45-2042VA measures AC voltage from 20V to 500V and AC current from 0 to 100A, making it suitable for a wide range of residential, commercial, and industrial electrical monitoring applications.\"}}, {\"@type\": \"Question\", \"name\": \"How do I install this DIN rail ammeter voltmeter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Installation is straightforward — simply snap the unit onto a standard 35mm DIN rail in the 2P mounting position, connect the wiring according to the clearly marked terminals, and attach the included current transformer around the monitored conductor. 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