Import 22mm Square Mini Indicator Lamp Digital Ammeter — Buy in wholesale FOB from Supplier in China

The 22mm Square Mini Indicator Lamp Digital Ammeter from Zhejiang Ninuo Electric Co., Ltd is a panel-mount current measurement device combining visual indication with digital ammeter functionality. The unit occupies a standard 22 millimetre panel cutout with a square bezel profile, distinct from the more common round format in industrial instrumentation. Model designation AD101-22AMS identifies this specific product within the manufacturer's catalogue. The ammeter measures alternating current from 0 to 100 amperes without external current transformer for the stated range, with digital display resolution of 1 ampere. Supply voltage acceptance spans AC 50V to 380V, and the device operates across 50 to 60 Hertz power systems typical of global mains distribution.

The display employs seven-segment LED technology in five colour options: white, green, red, yellow, and blue. This allows colour-coding of current status or integration into existing panel colour schemes. The sample rate of approximately one measurement per second suits steady-state load monitoring rather than transient capture applications. When no input signal is present, the display shows 000 as a no-signal indication rather than blanking or error state. The indicator lamp function implies dual-purpose operation where the LED functions as both illumination source and current measurement display element. Standard industry practice for such integrated devices places accuracy typically within plus or minus 1 percent to plus or minus 2 percent of full scale, though buyers should confirm the actual accuracy class with the supplier.

Primary applications include switchgear panels, distribution boards, generator sets, industrial machinery, and HVAC equipment where local current indication is required without external metering transformers. The self-contained nature (no separate CT) simplifies retrofit installation in existing 22 mm panel cutouts. Target buyers are panel builders, electrical contractors, and OEMs of power distribution equipment. The Ninuo brand name (stylised as NIN) appears on the product. Buyers should confirm with Zhejiang Ninuo Electric Co., Ltd whether the 0 to 100A range is direct-measure or requires an external current transformer for higher ranges, the exact accuracy specification, ambient temperature operating range, and whether CE or other conformity markings are available.

Zhejiang Ninuo Electric Co., Ltd is located at No.1, Pioneer Road, Backstreet Industrial Zone, Liushi Town, Yueqing, Zhejiang Province, China, postal code 325604. Liushi Town is recognised as a concentrated production base for low-voltage electrical apparatus in China, with extensive supply chain infrastructure for components, tooling, and testing equipment. The supplier holds harbor-tier trust status. The response rate is recorded at 0.00 percent with zero average response hours, suggesting either limited platform engagement or incomplete data. Buyers should initiate direct contact to assess English-language capability, technical support responsiveness, and sample provision willingness before relying on platform metrics alone.

The company embodied in this listing is a manufacturer of electrical indicating instruments, specifically the NIN-branded AD101 series of 22 mm panel-mount digital ammeters with integrated LED indication. No founding year, factory size, employee count, annual output figures, export history, or major client references are provided in the available profile. The supplier does not list ISO 9001, ISO 14001, IATF 16949, or product-specific certifications such as CE, UL, or CCC in the extracted data. The product range indicated focuses on compact digital metering devices for electrical panel applications. Buyers should request business licence verification, quality management system certificates, and factory audit access as standard due diligence steps.