AC/DC voltage sensor has measuring range of AC/DC 75mV/30V/50V/100V/250V/300V to 500V.
Specification:
Model | CHN-WBV122S01 | CHN-WBV124S01 | CHN-WBV125S01 | CHN-WBV127S01 |
Shipping weight | 1kg |
Measuring range of input voltage * | AC/DC 0-75mV ~ 0-500V |
Short-time overload | 2 times of nominal input voltage, 1s in duration, interval time 10s, repeat 10 times |
Linear measurement range | 0% ~ 120% measuring range |
Frequency range | ±DC/20Hz ~ 10kHz |
Input impedance | When Ux>1V, Ri=Ux*10kΩ/V; when Ux≤1V, Ri≥1MΩ |
Output signal * | DC 0-5V, 0-10V (only for power supply DC 24V) | DC 4-20mA, 0-20mA | True RMS DC 0-5V, 0-10V (only for power supply DC 24V) | True RMS DC 4-20mA, 0-20mA |
Power supply * | DC 12V±10%, DC 24V±10% |
Accuracy | 0.5%F.S. |
Load capacity | 5mA | 6V | 5mA | 6V |
Response time | ≤250ms |
Temperature drift | 250*10-6/℃ | 300*10-6/℃ | 250*10-6/℃ | 300*10-6/℃ |
Static current | ≤34mA | Output 0-20mA: ≤34mA Output 4-20mA: ≤38mA | ≤30mA | ≤40mA |
Isolation features | Isolation between input and output, output terminals provides power supply |
Isolation voltage | DC 1.5kV, 1 min |
Work temperature | -25~+70℃ | -25~+70℃ | 0~+50℃ | 0~+50℃ |
Storage temperature | -25~+70℃ | -25~+70℃ | -25~+70℃ | -25~+70℃ |
Input/Output isolation capacitance | - | 6pF (below 1kHz) |
Common mode rejection ratio (CMRR) | - | 160dB (under condition of 50Hz) |
Protection class | IP20 |
Mean time between failures | >50000h |
Housing material | Fire-retardant ABS |
Wiring | Terminal connection |
Installation | DIN rail (NS35/7.5, NS35/15, EN50022), or screw (M3) fixation |
AC/DC voltage sensor 75mV to 500V dimensional drawing (unit: mm):

AC/DC voltage sensor 75mV to 500V wiring diagram:
(The left diagram is for voltage output, the right diagram is for current output.)

Tips: How to install the voltage sensor?
There are 3 installation methods of voltage sensor:
- Pin-welding installation of the circuit board: Make lines on the circuit board, and weld the voltage sensor to the circuit board like a component. Its advantages are small size, light weight, space saving and easy installation.
- Screw fixation installation: The voltage sensor is screwed to the bottom of the chassis or a fixed position, and the external connection is through a variety of different terminals. The advantages are very firm and easy to disassemble.
- DIN rail installation: There is a standard 35mm wide dovetail groove on the bottom of the voltage sensor, which can be installed at DIN rail. Its advantages are convenient, versatile, and suitable for field work installation.
Voltage sensor has voltage measuring range from AC/DC 75mV/50V/100V/250V/300V to 500V, supply voltage DC 12V/24V, output DC voltage/current or True RMS voltage/current signal 0-5V/0-10V/0-20mA/4-20mA and protection class IP20. AC/DC voltage sensor has two installation methods, DIN rail installation and M3 screw fixation.