{"id":4098,"date":"2026-10-13T08:53:09","date_gmt":"2026-10-13T08:53:09","guid":{"rendered":"https:\/\/acrel.pl\/?post_type=product&p=4098"},"modified":"2026-10-13T08:53:15","modified_gmt":"2026-10-13T08:53:15","slug":"alp300-low-voltage-protection-and-control-relay","status":"publish","type":"product","link":"https:\/\/acrel.pl\/ru\/product\/alp300-low-voltage-protection-and-control-relay\/","title":{"rendered":"ALP300 Low-voltage Protection and Control Relay"},"content":{"rendered":"\n

General<\/strong><\/h2>\n\n\n\n

ALP300 protector (hereinafter referred to as protector) adopts the latest single-chip microcomputer technology and has features of strong capacity of resisting disturbance, stable and reliable working,digitization and intellectualization and so on.<\/p>\n\n\n\n

Function<\/strong><\/h2>\n\n\n\n
\"\"<\/figure>
\n

\u2460 Protective function<\/strong>
\u2461 Analog<\/strong>
\u2462 Measurement, monitoring<\/strong> Three-phase current, leakage current<\/strong>
\u2463 Communication(RS485<\/strong> Modbus RTU)<\/strong><\/p>\n<\/div><\/div>\n\n\n\n

Technical parameters<\/strong><\/h2>\n\n\n\n
Technical parameters<\/strong><\/td>Technical indicators<\/strong><\/td><\/tr>
Protector auxiliary power supply<\/td>AC85V~265V<\/td><\/tr>
Rated working voltage of the motor<\/td>AC380V\uff0c50Hz\/60Hz<\/td><\/tr>
Rated operating current of the motor<\/td>5 (0.1A-5000A)<\/td><\/tr>
25\uff086.3A-25A\uff09<\/td><\/tr>
100\uff0825A-100A\uff09<\/td><\/tr>
Switching input<\/td>4 channels, AC250V,3A;DC30V,3A<\/td><\/tr>
Communication<\/td>MODBUS RTU communication<\/td><\/tr>
Environment<\/td>Working temperature<\/td>-10\u00baC\uff5e55\u00baC<\/td><\/tr>
Storage temperature<\/td>-25\u00baC\uff5e70\u00baC<\/td><\/tr>
Relative humidity<\/td>\u226495\ufe6aNo condensation, no corrosive gas<\/td><\/tr>
Altitude<\/td>\u22642000m<\/td><\/tr>
Pollution levels<\/td>Class 2<\/td><\/tr>
Protection grade<\/td>IP30<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Dimension<\/strong><\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Application<\/strong><\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Typical Connection<\/strong><\/h2>\n\n\n\n
\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"\u25cf 2 programmable DI\n\u25cf 1 programmable DO\n\u25cf Modbus-RTU communication\n\u25cf 1 DC4-20mA analog output","protected":false},"featured_media":4099,"template":"","productcat":[6,44],"class_list":["post-4098","product","type-product","status-publish","has-post-thumbnail","hentry","productcat-power-protection","productcat-motor-protection"],"yoast_head":"\nALP300 Low-voltage Protection and Control Relay - ACREL<\/title>\n<meta name=\"description\" content=\"ALP300 protector (hereinafter referred to as protector) adopts the latest single-chip microcomputer technology and has features of strong capacity of resisting disturbance, stable and reliable working,digitization and intellectualization and so on.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/acrel.pl\/ru\/pl\/product\/alp300-low-voltage-protection-and-control-relay\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ALP300 Low-voltage Protection and Control Relay - ACREL\" \/>\n<meta property=\"og:description\" content=\"ALP300 protector (hereinafter referred to as protector) adopts the latest single-chip microcomputer technology and has features of strong capacity of resisting disturbance, stable and reliable working,digitization and intellectualization and so on.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/acrel.pl\/pl\/product\/alp300-low-voltage-protection-and-control-relay\/\" \/>\n<meta property=\"og:site_name\" content=\"ACREL\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-13T08:53:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/acrel.pl\/wp-content\/uploads\/2026\/10\/1-8.png\" \/>\n\t<meta property=\"og:image:width\" content=\"517\" \/>\n\t<meta property=\"og:image:height\" content=\"292\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/acrel.pl\/pl\/product\/alp300-low-voltage-protection-and-control-relay\/\",\"url\":\"https:\/\/acrel.pl\/pl\/product\/alp300-low-voltage-protection-and-control-relay\/\",\"name\":\"ALP300 Low-voltage Protection and Control Relay - 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