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AEMC MN312 Current Transformer

Model: MN312

AEMC MN312 AC Current Probe Model MN312 (150A, 1mA/A, Jack)

$159.00 USD

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The MN312 is a high accuracy and lower phase shift AC current probe. It has a 1000:1 ratio and an output of 1mA per A in the primary (inside the jaws). The MN312 has a jack output that accepts 4mm banana plugs. The MN312 has a protective diode across the output that limits the voltage in the case of an open secondary.

Applications:   
  • Measuring in breaker panels
  • Industrial loads
  • HVAC
  • Residential and commercial sites
  • 5A secondary current transformers (CTs) monitoring

Electrical Specifications
Frequency Range 40 to 10kHz
Limit Operating Conditions 200A permanently to 1kHz; Derating above 3kHz: 200A x (1/0.333 F), F in kHz
Common Mode Voltage 600VAC
Crest Factor 5 @ 280 Peak with an error ( due to CF) of 5%
Current Overload 240A for 10 min
Open Secondary Voltage 8V Peak max.
Reference Conditions 20° to 26°C, 20 to 75% RH, 48 to 65Hz, external magnetic field <40A/m, 48 to 65Hz sine wave, distortion factor less than 1%, no DC component, no external current carrying conductor, test sample centered. Load impedance 1W
Working Voltage 600VAC
Mechanical Specifications
Altitude Operating: 0 to 2000m; Non-operating: 0 to 12km
Colors Dark gray handles with red cover
Dimensions 5.47 x 2.00 x 1.18" (139 x 51 x 30mm)
Drop Test Test per IEC 68-2-32: 1.0 m drop on 38 mm of Oak on concrete
Jaw Opening .84" (21mm)
Material Jaws: Polycarbonate with 10% fiberglass charge, Red UL 94 V0; Case: Polycarbonate
Maximum Bus Bar Size 0.78 x 0.19" (20 x 5mm)
Maximum Cable Diameter One 0.78" & Oslash; (20mm)
Mechanical Shock 100g per IEC 68-2-27
Operating Temperature 14° to 131°F (-10° to 55°C)
Operating Relative Humidity 10° to 35°C 85% RH (without roll-off above 35°C)
Output Two standard safety banana jacks (4mm)
Protection Index (IP) IP 40 (IEC 529)
Impact Test IK04 0.5 J EN50102
Storage Temperature -40° to 158°F (-40° to 70°C)
Vibration Test per IEC 68-2-6
Weight 6.5 oz (180g)
External Influences
Influence of Temperature £200ppm/°K, or 0.2% of mV output per 10K°
Safety Reference Specifications
Safety Ratings EN 61010-2-32
Agency Approvals CE Mark

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