AEMC AC Current Probe Model MN379 The AC Current Probe Model MN379 is the latest in compact AC current probes. Designed to meet the most stringent demands in industry and electrical contracting, it also meets the latest safety and performance standards. The probe has a measurement range up to 120Arms, a range and resolution capable of displaying 10mV of output per amp of measured current, a voltmeter accuracy of 0.5% or better to take full advantage of the accuracy of the probe and an input impedance of 1M¦. The Model MN379 has a 0.78" (20mm) jaw opening and will accommodate conductors up to 250kcmil. The unique hooked jaw design facilitates clamping and hooking into conductors. Polycarbonate materials and ultrasonic welding are used throughout to ensure ruggedness and overall lasting reliability. Maximum Conductor Size 0.78" (20mm), bus bar 20x5mm Current Range 0.005 to 5A, 0.1 to 100A Measurement Range 0.005 to 6A, 0.1 to 120A Output 5ft (1.5m) lead with 4mm safety banana plug Transformation Ratio N/A Output Signal 200mV/A AC (1V @ 5A) & 10mV/A AC (1V @ 100A) Accuracy 50/60Hz 1% @ 5A & 1% @ 100A Frequency Range 40Hz to 10KHz Phase Shift At 50Hz 4° @ 5A & 2.2 ° @ 100A Open Secondary Voltage N/A Load Impedance 1Mé Overload 200A continuous Dimensions (H x W x D) 5.47 x 2.00 x 1.18 (139 x 51 x 30mm) Weight 6.3 oz (180g) Operating Temperature 14° to +131°F (-10° to +55°C) Storage Temperature -40° to +158°F (-40° to +70°C) Operating Humidity 90% RH Pollution Degree 2 Ingress Protection (IP) IP40 EMC EN 61326-1 Safety Compliance Category CAT III, EN/IEC 61010-032