B1 series multi-range current sensor is a closed loop device based on the measuring principle of the hall effect and null balance method, with a galvanic isolation between primary and secondary circuit. It provides accurate electronic measurement of DC, AC or pulsed currents.
| Type |
B1-25A | B1-50A | Unit |
| Ta=25℃±5℃ |
|||
| Rated current(Ipn) | 25 | 50 | A |
| Measure range(Ip) | ±50 | ±100 | A |
| Measure resister range | 54~360 | 68~180 | Ω |
| Rated output (Isn) | ±25 | ±50 | mA |
| Supply voltage | ±15V | V | |
| Power Consumption | ≤20+ IpX(Np/Ns) | mA | |
| Turns ratio(Np/Ns) | 1-2-3-4:1000 | T | |
| Zero offset current | @Ip=0 ≤±0.15 | mA | |
| Offset current drift | @ -40~+85℃ ≤±0.5 | mA | |
| Response time | @50A/μ S,10%-90% <1 | μS | |
| Linearity | @Ip=0-±Ipn ≤0.1 | %FS | |
| Galvanic isolation | @ 50HZ/60HZ,AC,1min 5 | KV | |
| di/dt accurately followed | >50 | A /μS | |
| Bandwidth | DC~200 | KHZ | |
| Secondary coil resister@70℃ | 40 | Ω | |
Pin connections
| Primary turns | Rated current Ipn(A) | Primary resister [mΩ] | Rated output Is (mA) | Pins connections |
| 1 | 25, 50 | 0.05 | 25, 50 | ![]() |
| 2 | 12, 25 | 0.2 | 24, 50 | ![]() |
| 3 | 8, 16 | 0.48 | 24, 48 | ![]() |
| 4 | 6,12 | 1 | 24, 48 | ![]() |
Dimensions
| Mechanical dimension(for reference only) | Note |
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1.Primary mounting dimensionsø1.4mm 2.Secondary mounting dimensionsø1.0mm |
|
1. All dimensions are in mm. 2. General tolerance ±1mm. |
| General date | Value | Unit |
| Operating temperature(TA) | -40 to +85 | ℃ |
| Storage temperature(TS) | -40 to +125 | ℃ |
| Mass(approx) (M) | 15 | g |
Accuracy test
| Pulse current signal response characteristic | Effects of impulse noise | ||
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( Input signal ) ( Output signal ) |
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( Output voltage ) |
Standards
UL94-V0.
EN60947-1:2004
IEC60950-1:2001
EN50178:1998
SJ 20790-2000


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