{"id":95835,"date":"2025-11-25T18:10:22","date_gmt":"2025-11-25T18:10:22","guid":{"rendered":"https:\/\/electrosphere.pl\/to-400-5-current-transformer-with-open-core-400-5a-class-0-5\/"},"modified":"2026-03-31T11:59:03","modified_gmt":"2026-03-31T11:59:03","slug":"to-400-5-current-transformer-with-open-core-400-5a-class-0-5","status":"publish","type":"product","link":"https:\/\/electrosphere.pl\/en\/to-400-5-current-transformer-with-open-core-400-5a-class-0-5\/","title":{"rendered":"TO-400-5 CURRENT TRANSFORMER WITH OPEN CORE 400-5A CLASS 0.5"},"content":{"rendered":"<h2>TO-400-5 Current Transformer with Openable Core 400-5A Class 0.5<\/h2>\n<p>The TO-400-5 current transformer is used to proportionally change large current intensities to lower values, adapted to the measurement ranges of control and measuring devices.<\/p>\n<h3>Application<\/h3>\n<p>Single-phase type, construction with an openable core. Ideal for applications in current measurements with high accuracy.<\/p>\n<h3>Technical Data<\/h3>\n<ul>\n<li>Transformation Ratio: 400\/5<\/li>\n<li>Class: 0.5<\/li>\n<li>Power: 2.5 VA<\/li>\n<li>Frequency: 50\u00f760 Hz<\/li>\n<li>Maximum Operating Voltage: 0.66 kV AC<\/li>\n<li>Standard No.: IEC 60044-1<\/li>\n<li>Nominal Secondary Current: 5 A<\/li>\n<li>Insulation Breakdown Voltage: 3 kV\/1 min.<\/li>\n<li>Weight: 0.78 kg<\/li>\n<li>Safety Factor: FS &lt; 5<\/li>\n<li>Connection: S1\/S2 screw terminals 4 mm\u00b2<\/li>\n<li>Dimensions: A: 21 mm; B: 32 mm; C: 51 mm; D: 89 mm; E: 105 mm; F: 34 mm; G: 42 mm; H: 40 mm; I: 32 mm<\/li>\n<li>Tightening Torque: 0.5 Nm<\/li>\n<li>Operating Temperature: -15 \u00f7 50\u00b0C<\/li>\n<li>Mounting Position: vertical\/horizontal<\/li>\n<li>Mounting: panel<\/li>\n<li>Protection Degree: IP20<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>TO-400-5 Current Transformer with Openable Core 400-5A Class 0.5 The TO-400-5 current transformer 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Current Transformer with Openable Core 400-5A Class 0.5 The TO-400-5 current transformer is used to proportionally change large current 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