深圳市信瑞达电力设备有限公司
深圳市信瑞达电力设备有限公司
LFA-B27系列开环型霍尔电流传感器的初、次级之间是绝缘的，用于控制、测量直流、交流和脉冲电流。
LFA-B27系列开环型霍尔电流传感器的初、次级之间是绝缘的，用于控制、测量直流、交流和脉冲电流。
LFA-B27 series current sensor is a open loop device based on the measuring principle of the hall effect, with a galvanic isolation between primary and secondary circuit. It provides accurate electronic measurement of DC,AC or pulsed currents.
| 电参数 Electrical data(Ta=25℃±5℃,RL=2KΩ,CL=10000PF) |
| 型号 Type | LFA50B27 | LFA75B27 | LFA100B27 | LFA200B27 | LFA300B27 | LFA400B27 | LFA500B27 | LFA600B27 | 单位 Unit |
| 额定输入电流(Ipn) | ±50 | ±75 | ±100 | ±200 | ±300 | ±400 | ±500 | ±600 | A |
| 测量电流范围(Ip) | ±150 | ±225 | ±300 | ±600 | ±900 | ±900 | ±900 | ±900 | A |
| 额定输出电压 | @Ip=±Ipn±4±1% | V | |||||||
| 电源电压 | ±15 ±5% | V | |||||||
| 功耗电流 Power Consumption | +18,-10 | mA | |||||||
| 失调电压 | ±25 | mV | |||||||
| 磁失调电压 | ±30 | ±25 | mV | ||||||
| 失调电压温漂 | ≤±1.5 | ≤±1.0 | mV/℃ | ||||||
| 输出电压温漂 | ≤±1.5 | ≤±1.0 | mV/℃ | ||||||
| 线性度 | @Ip=0-±Ipn ≤1 | %FS | |||||||
| 响应时间 | @50A/μS, 10%-90% ≤3 | μS | |||||||
| 绝缘电压 | @ 50HZ，AC，1min2.5 | KV | |||||||
| 引线长度 Wire length | 650～750 | mm | |||||||
| 应用 Applications |
交流变速驱动器
AC variable speed drives
直流电机驱动静态转换器
Static converters for DC motor drives
变频调速系统
Variable speed drives
电焊机
Power supplies for welding applications
通讯电源
Battery supplied applications
不间断电源UPS
Uninterruptible Power Supplies (UPS)
开关电源
Switched Mode Power Supplies(SMPS)
使用说明 Directions for use 1. 当待测电流从传感器穿过，即可在输出端测得电压大小。(注意：错误的接线可能导致传感器损坏) When the current will be measured goes through a sensor,the voltage will be measured at the output end。 (Note:The false wiring may result in the damage of the sensor). 2. 可按用户需求定制不同额定输入电流和输出电压的传感器。 Custom design in the different ratedinput current and the output voltage are available.
| 结构参数 Mechanical dimension(for reference only) |
Remarks：
1. All dimensions are in mm.
2. General tolerance ±1mm.
| |
l UL94-V0.
l EN60947-1:2004
l IEC60950-1:2001
l EN50178:1998
l SJ 20790-2000
| 总体参数 General date |
|
| 数值 Value | 单位 Unit | 符号 Symbol |
| 工作温度 Operating temperature | -40 to +85 | ºC | TA |
| 储存温度 Storage temperature | -40 to +125 | ºC | TS |
| 毛重(约)Mass(approx) | BS:65/BR:80 | g | M |
| 特性图Characteristics chart |
脉冲电流信号响应特性 抗脉冲电压干扰特性
Pulse current signal response characteristicEffects of impulse noise
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