LFA-B27系列開環型霍爾電流傳感器的初、次級之間是絕緣的，用于控制、測量直流、交流和脈沖電流。
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.
| 電參數 Electrical data(Ta=25℃±5℃,RL=2KΩ,CL=10000PF) |
| 型號 Type | LFA50B27 | LFA75B27 | LFA100B27 | LFA200B27 | LFA300B27 | LFA400B27 | LFA500B27 | LFA600B27 | 單位 Unit |
| 額定輸入電流(Ipn) | ±50 | ±75 | ±100 | ±200 | ±300 | ±400 | ±500 | ±600 | A |
| 測量電流范圍(Ip) | ±150 | ±225 | ±300 | ±600 | ±900 | ±900 | ±900 | ±900 | A |
| 額定輸出電壓 | @Ip=±Ipn±4±1% | V | |||||||
| 電源電壓 | ±15 ±5% | V | |||||||
| 功耗電流 Power Consumption | +18,-10 | mA | |||||||
| 失調電壓 | ±25 | mV | |||||||
| 磁失調電壓 | ±30 | ±25 | mV | ||||||
| 失調電壓溫漂 | ≤±1.5 | ≤±1.0 | mV/℃ | ||||||
| 輸出電壓溫漂 | ≤±1.5 | ≤±1.0 | mV/℃ | ||||||
| 線性度 | @Ip=0-±Ipn ≤1 | %FS | |||||||
| 響應時間 | @50A/μS, 10%-90% ≤3 | μS | |||||||
| 絕緣電壓 | @ 50HZ，AC，1min2.5 | KV | |||||||
| 引線長度 Wire length | 650～750 | mm | |||||||
| 應用 Applications |
交流變速驅動器
AC variable speed drives
直流電機驅動靜態轉換器
Static converters for DC motor drives
變頻調速系統
Variable speed drives
電焊機
Power supplies for welding applications
通訊電源
Battery supplied applications
不間斷電源UPS
Uninterruptible Power Supplies (UPS)
開關電源
Switched Mode Power Supplies(SMPS)
使用說明 Directions for use 1. 當待測電流從傳感器穿過，即可在輸出端測得電壓大小。(注意：錯誤的接線可能導致傳感器損壞) 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. 可按用戶需求定制不同額定輸入電流和輸出電壓的傳感器。 Custom design in the different ratedinput current and the output voltage are available.
| 結構參數 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
| 總體參數 General date |
|
| 數值 Value | 單位 Unit | 符號 Symbol |
| 工作溫度 Operating temperature | -40 to +85 | oC | TA |
| 儲存溫度 Storage temperature | -40 to +125 | oC | TS |
| 毛重(約)Mass(approx) | BS:65/BR:80 | g | M |
| 特性圖Characteristics chart |
脈沖電流信號響應特性 抗脈沖電壓干擾特性
Pulse current signal response characteristicEffects of impulse noise
