{"id":3859,"date":"2026-09-17T02:27:35","date_gmt":"2026-09-17T02:27:35","guid":{"rendered":"https:\/\/acrel.pl\/?post_type=product&p=3859"},"modified":"2026-09-17T02:34:27","modified_gmt":"2026-09-17T02:34:27","slug":"bak-series-split-core-ac-current-transducer","status":"publish","type":"product","link":"https:\/\/acrel.pl\/pl\/product\/bak-series-split-core-ac-current-transducer\/","title":{"rendered":"BAK Series Split Core AC Current Transducer"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

Technical Parameter<\/strong><\/h2>\n\n\n\n
Accuracy Class <\/td>Class 1<\/td><\/tr>
Input<\/strong><\/td>Nominal Value<\/td>BAK20-A<\/td>Current AC 0.5A, 50A, 200A, etc. AC0\uff5e(0.5\uff5e200A)<\/td><\/tr>
BAK50-AI<\/td>Current AC 60A, 300A, 600A, etc. AC0\uff5e(60\uff5e600A)<\/td><\/tr>
Overload<\/td>Continuous 1.2x, Instantaneous current 10x\/5 seconds<\/td><\/tr>
Power Consumption<\/td>\u22641VA<\/td><\/tr>
Measurement Frequency<\/td>45Hz\uff5e65Hz<\/td><\/tr>
Output<\/strong><\/td>Nominal Value<\/td>DC0\/4\uff5e20mA\uff0c0\uff5e5\/10V<\/td><\/tr>
Load Resistance<\/td>\u2264500\u03a9 when current output, \u226510K\u03a9 when voltage output<\/td><\/tr>
Communication<\/td>RS485 interface \/ Modbus-RTU protocol<\/td><\/tr>
Digital Output(DO)<\/td>1 relay output, Normally Open (NO) contactsCapacity 2A\/30VDC or 2A\/250VAC<\/td><\/tr>
Indicators<\/td>2 indicators: RUN (operational status), Alarm (DO status)<\/td><\/tr>
Response Time<\/td>\u2264400ms<\/td><\/tr>
Power Supply<\/strong><\/td>Voltage<\/td>DC 12V or 24V<\/td><\/tr>
Power Consumption<\/td>\u22641W<\/td><\/tr>
Insulation Resistance<\/td>\uff1e100M\u03a9<\/td><\/tr>
Dielectric Strength<\/td>2.0kV\/1min, 50Hz between Input\/Output\/Power Supply<\/td><\/tr>
Temperature Coefficient<\/td>\u2264400ppm\/\u2103 when -10\u2103\uff5e55\u2103<\/td><\/tr>
Environment<\/strong><\/td>Temperature<\/td>Operating: -10\u2103\uff5e+55\u2103 Storage: -25\u2103\uff5e+70\u2103<\/td><\/tr>
Humidity<\/td>\u226493%RH, non-condensing, non-corrosive gas environment<\/td><\/tr>
Altitude<\/td>\u22642000m<\/td><\/tr>
Weight<\/td>BAK20-AI approx. 242g<\/td>BAK50-AI approx. 468g<\/td><\/tr>
Mounting<\/td>TS35 rail, or fixed to cabinet with screws<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Type Selection<\/strong><\/h2>\n\n\n\n
\"BAK<\/figure>\n\n\n\n

Wiring<\/strong><\/h2>\n\n\n\n
\"BAK<\/figure>\n\n\n\n
\"BAK<\/figure>\n\n\n\n

V+ \u2014\u2014 Power Positive (Note: Do not reverse power positive and ground)<\/p>\n\n\n\n

DO-\u3001DO+ \u2014\u2014 Digital Output (Switch) Interface<\/p>\n\n\n\n

V- \u2014\u2014  Power Ground<\/p>\n\n\n\n

A\u3001B \u2014\u2014 RS485 Interface<\/p>\n\n\n\n

OUT- \u2014\u2014  Analog Output Negative<\/p>\n\n\n\n

OUT+ \u2014\u2014  Analog Output Positive<\/p>\n\n\n\n

Cable is through-hole (pass-through) input<\/p>\n\n\n\n

Indicator Definitions:<\/strong><\/p>\n\n\n\n

RUN: Normal operation. When 485 communication is not connected, the RUN indicator shows green, blinking once per second. When the current sensor successfully connects to 485 communication, the RUN indicator blinks rapidly.<\/p>\n\n\n\n

Alarm: After the alarm function is enabled, when the input current reaches 120% of the sensor's range, the Alarm indicator lights red steadily and the relay output closes. When the input current drops below 110% of the sensor's range, the Alarm indicator turns off. If the alarm function is not enabled, the Alarm indicator remains off and the relay does not close.<\/p>\n\n\n\n

Notes:<\/strong><\/p>\n\n\n\n

(1) The device uses removable terminal blocks. It is recommended to use shielded wires with a cross-sectional area of 0.75mm\u00b2 for the power, output, RS485 communication, and digital output interface sides.<\/p>\n\n\n\n

(2) Please refer to the wiring diagram on the physical housing for specific wiring connections.<\/p>\n\n\n\n

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

BAK20-AI Dimension<\/strong><\/p>\n\n\n\n

\"BAK20-AI<\/figure>\n\n\n\n

BAK50-AI Dimension<\/strong><\/p>\n\n\n\n

\"BAK50-AI<\/figure>\n\n\n\n

Application<\/strong><\/h2>\n\n\n\n
\"\"
Cement Building Petrochemical Industry<\/figcaption><\/figure>\n\n\n\n
\"\"
Iron and Steel Metallurgy Rail Traffic<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"Acrel BAK Series Split-core products utilize the principle of electromagnetic induction to perform real-time measurement of AC current in power grids. Using constant current and linear compensation technology, they isolate and convert the measured current into a standard DC signal output. Operating on a safe voltage of DC12V or 24V, they can be widely used in industrial automation fields.","protected":false},"featured_media":3865,"template":"","productcat":[9,63],"class_list":["post-3859","product","type-product","status-publish","has-post-thumbnail","hentry","productcat-power-sensor","productcat-ac-current-sensor"],"yoast_head":"\nBAK Series Split Core AC Current Transducer - ACREL<\/title>\n<meta name=\"description\" content=\"The Split-core BAK Series products utilize the principle of electromagnetic induction to perform real-time measurement of AC current in power grids. 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