Product Overview
Overvoltage protection B 81-35 is an overvoltage protector used for industrial instruments and electrical systems. It can effectively suppress transient overvoltages and protect downstream equipment from surge damage caused by lightning strikes or switching operations. This manual provides Chinese technical documentation for the convenience of engineering and procurement personnel to quickly consult.
Main Technical Parameters
Electrical Parameters
| Parameter | Value |
|---|---|
| Model | B 81-35 |
| Rated Voltage | 35 V |
| Maximum Continuous Operating Voltage | 45 V |
| Nominal Discharge Current | 5 kA (8/20 μs) |
| Response Time | < 1 ns |
Mechanical and Environmental Parameters
- Operating Temperature: -40°C to +85°C
- Protection Rating: IP20
- Installation Method: DIN rail mounting
- Housing Material: Flame-retardant plastic
Installation Steps
- Confirm that the system is powered off, and verify that there is no voltage.
- Clip the B 81-35 onto a 35 mm DIN rail, ensuring the buckle is locked.
- Connect the input, output, and ground wires according to the wiring diagram; 2.5 mm² wire is recommended.
- After checking that the wiring is correct, power on and test the protector status indicator.
Selection and Maintenance
Selection Points
- Select the corresponding model according to the rated voltage of the protected equipment.
- Confirm that the discharge current meets the on-site surge level requirements.
- Consider the installation space and rail type.
Maintenance Recommendations
- Regularly check the indicator status; if it fails, replace it promptly.
- Carry out a comprehensive inspection once a year before the thunderstorm season.
- When replacing, please choose the same model or a higher-specification product.
Download Chinese Manual
Click the link below to obtain the complete Overvoltage protection B 81-35 Chinese Manual. If you have technical questions, please contact the supplier's technical support.