LA系列 – 电流传感器
LA系列电流传感器采用闭环霍尔效应转换器设计，可精确测量直流、交流及脉冲电流，同时在一次侧与二次侧电路间提供增强型电隔离。该系列覆盖广泛的额定电流范围（根据型号不同，从5安培至500安培不等），提供多种外形尺寸和安装选项，以满足工业及铁路环境中多样化的集成需求。
大多数LA系列传感器专为印刷电路板（PCB）安装设计，采用紧凑型外壳，其主导体孔径适配插头式连接，具体尺寸因型号而异。这类PCB安装式传感器以卓越的精度和快速响应时间著称，使其成为工业应用的理想选择。
若干高电流型号（如LA 205、LA 305和LA 306）专为面板安装设计，配备更大的初级孔径以适应更粗的导体。其中LA 306型号特别面向工业应用领域。
LA 200‑500 SD是LA系列中的独特产品。这款分体式面板安装电流传感器配备67×67毫米大开口，便于在现有导体周围轻松安装。基于闭环霍尔效应技术，它具有高精度和快速响应特性，特别适用于牵引和铁路电流测量应用。
在整个LA系列中，闭环架构、电隔离与优化机械设计的结合，确保了在严苛环境中实现可靠精准的电流测量。
LA系列 - 特点与优势
主要特点
- 闭环（补偿型）霍尔效应电流传感器
- 一次侧与二次侧电路间实现电隔离
- 符合UL 94-V0认证的绝缘塑料外壳
- 标准电流输出
- 多数型号采用PCB安装设计（LA 25至LA 200、LA 130/150、LA 55/100）
- 高电流型号采用面板安装设计（LA 205、LA 305、LA 306）
- LA 200–500 SD型号采用分体式磁芯设计（无需切割一次侧导线即可安装）
优点
- 卓越的精度
- 优异的线性度
- 低温度漂移
- 优化响应时间
- 宽频率带宽
- 高抗外部磁干扰能力
- 无插入损耗
- 电流过载能力
典型应用
工业应用
（除LA 200–500 SD外，所有LA型号主要设计用于工业用途。）
牵引应用
（仅适用于LA 200–500 SD，分体式版本。）
- 推进与制动斩波器
- 推进变流器
- 辅助变流器
- 蓄电池充电器
- 能量计量表
LEM LA - 下载和技术特性
| 产品 | 订购 | 文件 | 面值 | 电源电压范围 | 工作温度 |
|---|---|---|---|---|---|
| LA 25-NP | Datasheet 3D | 5 A, 6 A, 8 A, 12 A, 25 A | 15 to 15 | -40 to 85°C | |
| LA 25-NP/SP11 | Datasheet | 1 A | 15 to 15 | 0 to 70 °C | |
| LA 25-NP/SP39 | Datasheet | 2 A | 15 to 15 | -40 to 85°C | |
| LA 25-NP/SP13 | Datasheet | 0.5 A | 15 to 15 | -40 to 70°C | |
| LA 25-NP/SP14 | Datasheet | 0.25 A | 15 to 15 | -10 to 70 °C | |
| LA 25-NP/SP38 | Datasheet | 0.4 A | 15 to 15 | -40 to 85°C | |
| LA 25-NP/SP25 | Datasheet 3D | 5 A, 6 A, 8 A, 12 A, 25 A | 15 to 15 | -40 to 85°C | |
| LA 25-NP/SP34 | Datasheet | 1.5 A | 15 to 15 | -40 to 85°C | |
| LA 25-NP/SP7 | Datasheet | 2.5 A | 15 to 15 | 0 to 70 °C | |
| LA 25-NP/SP8 | Datasheet | 2 A | 15 to 15 | 0 to 70 °C | |
| LA 10-PB | Datasheet 3D | 10 A | 15 to 15 | -20 to 80°C | |
| LA 25-NP/SP9 | Datasheet | 1.5 A | 15 to 15 | 0 to 70 °C | |
| LA 35-NP/SP3 | Datasheet | 17.5 A | 15 to 15 | -25 to 70 °C | |
| LA 35-NP | Datasheet 3D | 7 A, 8 A, 11 A, 17 A, 35 A | 15 to 15 | -25 to 70 °C | |
| LA 25-P | Datasheet 3D | 12,5 A | 12 to 15 | -25 to 85°C | |
| LA 55-P | Datasheet 3D | 50 A | 12 to 15 | -40 to 85°C | |
| LA 55-P/SP1 | Datasheet 3D | 50 A | 12 to 15 | -40 to 85 °C | |
| LA 55-P/SP11 | Datasheet | 50 A | 15 to 15 | -40 to 85 °C | |
| LA 55-P/SP2 | Datasheet | 50 A | 14 to 14 | -40 to 85 °C | |
| LA 55-P/SP21 | Datasheet | 50 A | 12 to 15 | -40 to 85 °C | |
| LA 55-P/SP23 | Datasheet | 50 A | 12 to 15 | -40 to 85 °C | |
| LA 55-P/SP26 | Datasheet | 50 A | 12 to 15 | -40 to 85 °C | |
| LA 55-P/SP7 | Datasheet | 50 A | 12 to 15 | -40 to 85 °C | |
| LA 55-TP | Datasheet 3D | 50 A | 12 to 15 | -40 to 85 °C | |
| LA 55-TP/SP1 | Datasheet | 50 A | 12 to 15 | -40 to 85°C | |
| LA 55-TP/SP27 | Datasheet | 50 A | 12 to 15 | -40 to 85°C | |
| LA 55-TP/SP28 | Datasheet | 50 A | 12 to 15 | -40 to 85°C | |
| LA 100-TP/SP2 | Datasheet | 60 A | 15 to 15 | 0 to 70 °C | |
| LA 100-P/SP6 | Datasheet | 85 A | 12 to 15 | -40 to 85°C | |
| LA 100-P | Datasheet | 100 A | 12 to 15 | -40 to 85 °C | |
| LA 100-P/SP13 | Datasheet | 100 A | 12 to 15 | -25 to 70 °C | |
| LA 100-P/SP4 | Datasheet | 100 A | 12 to 15 | -40 to 85 °C | |
| LA 100-TP | Datasheet | 100 A | 12 to 15 | -40 to 85 °C | |
| LA 100-TP/SP10 | Datasheet 3D | 100 A | 12 to 15 | -40 to 85 °C | |
| LA 100-TP/SP7 | Datasheet | 100 A | 12 to 15 | -40 to 85 °C | |
| LA 125-P | Datasheet 3D | 125 A | 12 to 15 | -40 to 85°C | |
| LA 125-P/SP1 | Datasheet 3D | 125 A | 12 to 15 | -25 to 85 °C | |
| LA 125-P/SP16 | Datasheet 3D | 125 A | 12 to 15 | -25 to 85 °C | |
| LA 125-P/SP3 | Datasheet | 125 A | 12 to 15 | -25 to 85 °C | |
| LA 125-P/SP4 | Datasheet | 125 A | 12 to 15 | -40 to 85 °C | |
| LA 125-P/SP7 | Datasheet | 125 A | 12 to 15 | -25 to 85 °C | |
| LA 130-P | Datasheet 3D | 130 A | 12 to 15 | -40 to 85°C | |
| LA 130-P/SP1 | Datasheet 3D | 130 A | 12 to 15 | -40 to 85 °C | |
| LA 150-P | Datasheet 3D | 150 A | 12 to 15 | -40 to 85 °C | |
| LA 150-P/SP1 | Datasheet 3D | 150 A | 12 to 15 | -40 to 85 °C | |
| LA 150-TP | Datasheet 3D | 150 A | 12 to 15 | -40 to 85°C | |
| LA 150-TP/SP1 | Datasheet 3D | 150 A | 12 to 15 | -40 to 85°C | |
| LA 205-S/SP15 | Datasheet | 200 A | 12 to 15 | -40 to 85°C | |
| LA 200-P | Datasheet 3D | 200 A | 12 to 15 | -40 to 85°C | |
| LA 200-P/SP10 | Datasheet | 200 A | 12 to 15 | -25 to 85 °C | |
| LA 200-P/SP12 | Datasheet | 200 A | 15 to 15 | 0 to 45 °C | |
| LA 200-P/SP14 | Datasheet 3D | 200 A | 15 to 15 | -25 to 85 °C | |
| LA 200-P/SP3 | Datasheet | 200 A | 15 to 15 | 0 to 45 °C | |
| LA 200-P/SP4 | Datasheet | 200 A | 12 to 15 | -25 to 85 °C | |
| LA 205-S | Datasheet 3D | 200 A | 15 to 12 | -10 to 85 °C | |
| LA 205-S/SP1 | Datasheet | 200 A | 15 to 12 | -10 to 85 °C | |
| LA 205-S/SP21 | Datasheet 3D | 300 A | 24 to 15 | -40 to 85 °C | |
| LA 205-S/SP33 | Datasheet | 300 A | 15 to 15 | -40 to 70 °C | |
| LA 205-S/SP6 |
| Datasheet 3D | 200 A | 15 to 12 | -40 to 85 °C |
| LA 205-T/SP16 | Datasheet 3D | 200 A | 24 to 15 | -25 to 75 °C | |
| LA 200-SD/SP3 | Datasheet 3D | 200 A | 24 to 24 | -30 to 70 °C | |
| LA 255-S | Datasheet 3D | 250 A | 18 to 12 | -10 to 85 °C | |
| LA 305-S | Datasheet 3D | 300 A | 15 to 12 | -10 to 85 °C | |
| LA 305-S/SP1 | Datasheet | 500 A | 15 to 12 | -10 to 85 °C | |
| LA 305-S/SP19 | Datasheet 3D | 500 A | 24 to 15 | -40 to 85 °C | |
| LA 305-S/SP4 |
| Datasheet 3D | 300 A | 15 to 12 | -25 to 85 °C |
| LA 305-S/SP5 | Datasheet | 300 A | 15 to 12 | -10 to 85 °C | |
| LA 305-S/SP6 | Datasheet 3D | 300 A | 24 to 15 | -25 to 85 °C | |
| LA 305-S/SP8 | Datasheet 3D | 300 A | 15 to 12 | -40 to 85 °C | |
| LA 306-S | Datasheet 3D | 300 A | 15 to 15 | -40 to 85 °C | |
| LA 306-S/SP1 | Datasheet | 400 A | 15 to 15 | -40 to 85 °C | |
| LA 306-S/SP4 | Datasheet | 480 A | 15 to 15 | -40 to 70 °C | |
| LA 306-S/SP2 | Datasheet | 300 A | 24 to 24 | -40 to 75 °C | |
| LA 200-SD/SP4 | Datasheet 3D | 200 A | 24 to 24 | -40 to 85 °C |
LA传感器 - 样品需求/报价
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