{"id":4200,"date":"2022-02-26T13:50:57","date_gmt":"2022-02-26T12:50:57","guid":{"rendered":"http:\/\/en.testnordic.com\/?post_type=product&#038;p=4200"},"modified":"2025-03-21T09:06:47","modified_gmt":"2025-03-21T08:06:47","slug":"mzc-304","status":"publish","type":"product","link":"https:\/\/testnordic.se\/en\/product\/mzc-304\/","title":{"rendered":"Short circuit loop impedance meter MZC-304F"},"content":{"rendered":"<p><strong>Sonel MZC-304F compact short circuit loop impedance meter<\/strong> with many measurement functions (replaces the MZC-304).<\/p>\n<p>The presented model is one of the smallest instruments available on the market intended for short circuit loop impedance measurements in 230\/400 V networks and continuity of protective and equipotential connections measurements. The MZC-304F meter performs short circuit loop measurements with a resolution of 0.01 \u03a9, also in the case of measurements in networks protected with RCD switches. With a backlit keyboard and display, the device can be used even in low light. The device has a sealed casing with IP67 protection, which is characterised by excellent resistance and ensures smooth operation even under adverse environmental conditions.<\/p>\n<p>The device meets the requirements set out in standard EN 61557.<\/p>\n<div class=\"entry-content-asset videofit\"><iframe title=\"Unboxing Sonel MZC-304F\" width=\"720\" height=\"405\" src=\"https:\/\/www.youtube.com\/embed\/kNNUwgkihuA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<div class=\"html-content sonel-content clearfix description-item\">\n<div class=\"description-item-label\">\n<h4><strong>Capabilities<\/strong><\/h4>\n<\/div>\n<div class=\"description-item-content\">\n<ul>\n<li>Fault loop impedance measurement with 0.01\u00a0\u2126 resolution.<\/li>\n<li>Low-current impedance measurement in circuits protected by RCD \u2265 30mA with 0.01 \u2126 resolution (range of 180&#8230;270 V)<\/li>\n<li>Operates in networks with voltages 220\/380\u00a0V, 230\u00a0V\/400\u00a0V, 240\/415\u00a0V (operating range 180&#8230;460 V)<\/li>\n<li>Operating voltage range: 180\u2026270\u00a0V (for Z<sub>L-PE<\/sub>\u00a0and Z<sub>L-N<\/sub>) and 180\u2026460\u00a0V (for Z<sub>L-L<\/sub>).<\/li>\n<li>Maximum measuring current: 7.6 A for 230\u00a0V (3&#215;10 ms), 13.3 A for 400\u00a0V (3&#215;10 ms).<\/li>\n<li>Operating frequency 45\u202665 Hz<\/li>\n<li>Calculation of I<sub>k<\/sub>\u00a0fault current.<\/li>\n<li>Measurement with swapped L and N conductors.<\/li>\n<li>Measurement of resistance (R<sub>S<\/sub>) and reactance (X<sub>S<\/sub>) components.<\/li>\n<li>Low-voltage measurement of continuity of circuit and resistance.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div class=\"html-content sonel-content clearfix description-item\">\n<div class=\"description-item-label\">\n<h4><strong>Additional features<\/strong><\/h4>\n<\/div>\n<div class=\"description-item-content\">\n<ul>\n<li>Contact electrode &#8211; quick testing of proper connection of PE conductor.<\/li>\n<li>Voltage measurement 0&#8230;500\u00a0V.<\/li>\n<li>Frequency measurement 45.0&#8230;65.0 Hz.<\/li>\n<li>Memory of\u00a0990 measurement results, ability to transfer the data to a PC via Bluetooth.<\/li>\n<li>Power supply: batteries (4 x LR14) or rechargeable batteries (4 x NiMH).<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div class=\"html-content sonel-content clearfix description-item\">\n<div class=\"description-item-label\">\n<p><strong>Application<\/strong><\/p>\n<\/div>\n<div class=\"description-item-content\">\n<p>The instrument is dedicated to personnel performing measurements in single and multi-family buildings, office buildings, industrial plants and any other places equipped with low voltage electrical systems. In addition, the meter is intended for maintenance personnel working on objects, where fault currents reach\u00a0<strong>4.4 kA<\/strong>\u00a0(measured according to EN 61557). MZC-304F is also a great tool for checking circuits additionally protected by residual current devices.<\/p>\n<\/div>\n<\/div>\n<p><strong>Datasheet<\/strong><\/p>\n<div class='w3eden'><!-- WPDM Link Template: Default Template -->\n\n<div class=\"link-template-default card mb-2\">\n    <div class=\"card-body\">\n        <div class=\"media\">\n            <div class=\"mr-3 img-48\"><img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\"   src=\"http:\/\/testnordic.com\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/pdf.png\" \/><\/div>\n            <div class=\"media-body\">\n                <h3 class=\"package-title\"><a href='https:\/\/testnordic.se\/en\/download\/mzc-304-2\/'>MZC-304F<\/a><\/h3>\n                <div class=\"text-muted text-small\"><i class=\"fas fa-copy\"><\/i> 1 file(s) <i class=\"fas fa-hdd ml-3\"><\/i> 341.54 KB<\/div>\n            <\/div>\n            <div class=\"ml-3\">\n                <a class='wpdm-download-link download-on-click btn btn-primary ' rel='nofollow' href='#' data-downloadurl=\"https:\/\/testnordic.se\/en\/download\/mzc-304-2\/?wpdmdl=5778&refresh=69fb0991b6bbb1778059665\">Download<\/a>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<\/div>\n","protected":false},"excerpt":{"rendered":"<div class=\"product-card-model\">\n<div class=\"product-card-model-name\"><strong>MZC-304F short circuit loop impedance meter<\/strong><\/div>\n<div><img decoding=\"async\" class=\"alignnone  wp-image-9323\" src=\"https:\/\/testnordic.com\/wp-content\/uploads\/2023\/08\/logo_c9-300x110.jpg\" alt=\"\" width=\"136\" height=\"50\" srcset=\"https:\/\/testnordic.se\/wp-content\/uploads\/2023\/08\/logo_c9-300x110.jpg 300w, https:\/\/testnordic.se\/wp-content\/uploads\/2023\/08\/logo_c9-600x220.jpg 600w, https:\/\/testnordic.se\/wp-content\/uploads\/2023\/08\/logo_c9-64x23.jpg 64w, https:\/\/testnordic.se\/wp-content\/uploads\/2023\/08\/logo_c9-1024x375.jpg 1024w, https:\/\/testnordic.se\/wp-content\/uploads\/2023\/08\/logo_c9-768x281.jpg 768w, https:\/\/testnordic.se\/wp-content\/uploads\/2023\/08\/logo_c9.jpg 1200w\" sizes=\"(max-width: 136px) 100vw, 136px\" \/><\/div>\n<\/div>\n","protected":false},"featured_media":10427,"template":"","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product_brand":[],"product_cat":[73,104],"product_tag":[],"yst_prominent_words":[],"class_list":{"0":"post-4200","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-electrical-safety-instruments","7":"product_cat-short-circuite-loop-testers","9":"first","10":"instock","11":"product-type-simple","12":"entry","13":"content-bg","14":"loop-entry"},"_links":{"self":[{"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product\/4200","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product\/4200\/revisions"}],"predecessor-version":[{"id":12987,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product\/4200\/revisions\/12987"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/media\/10427"}],"wp:attachment":[{"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/media?parent=4200"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product_brand?post=4200"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product_cat?post=4200"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product_tag?post=4200"},{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/yst_prominent_words?post=4200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}