Changsha Purple Horn E-Commerce Co., Ltd.
| working temperature | -40℃~+85℃ |
| Current Range | 50A |
| Voltage - Supply | -12V~15V |
| Band Width | 200kHz |
| Bidirectional Current Detection | Support |
| Description | 50A Through Hole Current Sensors RoHS |
| Mfr. Part # | LA55-P |
| Package | Through Hole |
| Model Number | LA55-P |
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Product Specification
| working temperature | -40℃~+85℃ | Current Range | 50A |
| Voltage - Supply | -12V~15V | Band Width | 200kHz |
| Bidirectional Current Detection | Support | Description | 50A Through Hole Current Sensors RoHS |
| Mfr. Part # | LA55-P | Package | Through Hole |
| Model Number | LA55-P |
The LEM LA 55-P is a closed-loop current transducer utilizing Hall effect technology for the electronic measurement of DC, AC, and pulsed currents. It offers galvanic isolation between the primary and secondary circuits and is designed for printed circuit board mounting. Key advantages include excellent accuracy, very good linearity, low temperature drift, optimized response time, and a wide frequency bandwidth, making it suitable for various industrial applications.
| Parameter | Value | Notes |
| Product Name | LA 55-P | Current Transducer |
| Primary Nominal Current (IPN) | 50 A (rms) | |
| Primary Current Measuring Range (IPM) | 0 .. 70 A | |
| Secondary Nominal Current (ISN) | 50 mA (rms) | |
| Conversion Ratio (KN) | 1 : 1000 | |
| Supply Voltage (VC) | 12 .. 15 V ( 5 %) | |
| Current Consumption (IC) | 10 mA (@ 15 V) + IS | |
| Accuracy (@ IPN, TA = 25C, 15 V) | 0.65 % | |
| Accuracy - Dynamic Performance (@ 12..15 V) | 0.90 % | |
| Linearity Error (L) | < 0.15 % | Typ |
| Offset Current (IO) (@ IP = 0, TA = 25C) | 0.2 mA | |
| Magnetic Offset Current (IOM) (@ IP = 0, after 3x IPN overload) | 0.3 mA | 3) |
| Temperature Variation of IO | 0.1 .. 0.6 mA (-25C to +85C) / 0.2 .. 1.0 mA (-40C to -25C) | |
| Reaction Time (to 10% of IPN step) | < 500 ns | |
| Response Time (to 90% of IPN step) | < 1 s | |
| di/dt | > 200 A/s | Accurately followed |
| Frequency Bandwidth (- 1 dB) | DC .. 200 kHz | |
| Ambient Operating Temperature (TA) | - 40 .. + 85 C | |
| Ambient Storage Temperature (TS) | - 40 .. + 90 C | |
| Secondary Coil Resistance (RS) (@ TA = 70C / 85C) | 80 / 85 | |
| Mass | 18 g | |
| Isolation Test Voltage (Vd) | 2.5 kV (rms) | 50 Hz, 1 min |
| Impulse Withstand Voltage (Vw) | 5.7 kV | 1.2/50 s |
| Creepage Distance (dCp) | 5 mm | |
| Clearance Distance (dCI) | 5 mm | |
| Comparative Tracking Index (CTI) | 175 | Group IIIa |
| Rated Isolation Voltage (Single/Reinforced) | 500 V / 250 V | According to EN 50178 / IEC 61010-1 |
| Primary Through-hole Dimensions | 12.7 x 7 mm | |
| Secondary Connection | 3 pins (0.63 x 0.56 mm) | |
| Recommended PCB Hole | 0.9 mm | |
| General Tolerance | 0.2 mm |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...
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