{"product_id":"hioki-cm4001-70048769","title":"Hioki CM4001 AC LEAKAGE CLAMP METER","description":"\u003ch3\u003eHeadline\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAC Leakage Clamp Meter for Leakage and Load Current, 600 A\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eShort Description\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAC leakage clamp meter for leakage and load current measurements from 600 μA to 600 A, max. conductor diameter 24 mm, True RMS, 50\/60 Hz filter, threshold alarm, CAT III 300 V, optional Bluetooth via Z3210\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eBanner Specs\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e• Leakage current measurement from 600 μA to 600 A \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Slim jaws, max. conductor diameter 24 mm \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• 50\/60 Hz filter for stable leakage current measurement \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Threshold alarm for quick leakage detection \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Optional Bluetooth via Z3210\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e• Checking operation of Residual Current Devices (RCDs) and Ground Fault Circuit Interrupters (GFCIs) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Locating insulation faults and earth leakage paths \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Inspecting distribution panels and switchboards with limited space \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Measuring load current and verifying circuit load balance \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Comparing leakage current across multiple circuits during maintenance\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eLeakage currents in electrical installations can cause nuisance RCD trips, insulation faults, or unexpected shutdowns that are difficult to trace. The HIOKI CM4001 AC leakage clamp meter measures currents from 600 μA to 600 A, including very small leakage currents in electrical installations. Its slim jaws with a 24 mm opening fit between closely spaced conductors and allow measurements in confined installation environments such as control cabinets and distribution panels.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003eVersatile for Leak and Load Currents\u003c\/strong\u003e \u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe CM4001 measures leakage, differential, and load currents using True RMS detection. When clamped around all active conductors of a circuit, the instrument measures differential current (residual current) to verify the operation of RCDs and GFCIs. Clamping a single conductor allows load current measurement for checking circuit load conditions and identifying abnormal current draw in connected equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFive AC current ranges from 60.00 mA to 600.0 A cover a wide measurement span. The clamp meter detects leakage currents starting at 600 μA while also handling load currents up to 600.0 A. Its measurement bandwidth extends from 40 Hz to 1 kHz. A selectable low-pass filter removes high-frequency components so that the 50\/60 Hz leakage current relevant to RCD testing can be evaluated even in circuits that include inverters or switching power supplies.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e\u003cstrong\u003eFunctions for Service and Installation Work\u003c\/strong\u003e \u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe comparator function provides immediate pass\/fail indication with a red backlight and buzzer when the preset threshold is exceeded. Additional functions include frequency measurement, Auto Hold, Max\/Min\/Avg memory, Inrush current measurement (up to 150 ms), and Peak value recording.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRated CAT III 300 V, the CM4001 is suitable for measurements in fixed installations, distribution panels, and electrical switchboards in residential, commercial, and industrial environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith the optional Z3210 Wireless Adapter, measurement data can be transferred via Bluetooth to the GENNECT Cross app for logging, labeling, and on-site PDF reporting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned and manufactured in Japan, HIOKI clamp meters are developed and built at the company’s own facilities in Nagano, ensuring consistent measurement accuracy, mechanical precision, and long-term reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e• CM4001 AC Leakage Clamp Meter \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Carrying case \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Strap \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Instruction manual \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Operating precautions \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• 1 × LR03 (AAA) alkaline battery\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e• Z3210 Bluetooth Adapter \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• CM4001-90 AC Leakage Clamp Meter \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• CM4002 AC Leakage Clamp Meter \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• CM4002-90 AC Leakage Clamp Meter \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• CM4003 AC Leakage Clamp Meter \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• CM4003-90 AC Leakage Clamp Meter\u003c\/span\u003e\u003c\/p\u003e","brand":"Hioki","offers":[{"title":"Default Title","offer_id":58412182405452,"sku":"70048769","price":396.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/2245\/6652\/files\/CM4001C.jpg?v=1786728970","url":"https:\/\/www.testequity.co.uk\/products\/hioki-cm4001-70048769","provider":"TestEquity UK","version":"1.0","type":"link"}