NewTrend · plug-in voltage and current protection
Product overview
The OSVA-16 is a single-outlet plug-in protector with separate voltage and current displays. Adjustable overvoltage, undervoltage and overcurrent protection disconnect the output during an abnormal condition and restore it after the configured recovery delay. Choose the physical plug and outlet version required by the installation.
Technical selection summary
| Model | OSVA-16 |
|---|---|
| Configuration | One protected outlet; EU, UK/universal, US or big South Africa plug/outlet version |
| Supply | AC 110V / 220V, 50/60Hz |
| Adjustable overcurrent threshold | 1–16A; default 16A |
| Overvoltage trip / recovery | 100–300V or OFF / 95–295V; defaults 270V / 265V |
| Undervoltage trip / recovery | 80–210V or OFF / 85–215V; defaults 170V / 175V |
| Voltage protection action delay | 0.1–30s; default 0.5s for EU / UK / US, 0.1s for South Africa |
| Voltage recovery delay | 1–500s; default 30s |
| Overcurrent action / recovery delay | 0.1–30s / 1–500s; defaults 0.5s / 30s |
| Power-on delay | 1–500s; default 10s |
| Voltage / current calibration | −9.5% to +9.5% |
| Repeated overcurrent event setting | OFF or 1–20 |
| Self-consumption | Less than 2W |
| Electrical / mechanical life | At least 100,000 operations |
| Illustrated UK dimensions | 122 × 55 × 86mm |
| Control functions | Manual output switching, fault review and factory reset |
Voltage and current protection
The front panel displays voltage and load current. Separate >V, <V, >A and POWER lamps identify the operating condition. Set the voltage trip and recovery levels independently, then choose an action delay and recovery delay. The current limit is adjustable from 1 to 16A. Keep the load within the ratings of the fitted plug, outlet and supply circuit as well as the selected limit.
Settings and front-panel operation
Hold SET for more than three seconds to enter the programming menu. Use the arrow keys to change values and SET to advance. The menu includes A1 power-on delay; A2 overvoltage threshold; A3 overvoltage recovery; A4 overvoltage recovery delay; A5 overvoltage action delay; A6 undervoltage threshold; A7 undervoltage recovery; A8 undervoltage recovery delay; A9 undervoltage action delay; A10 current limit; A11 overcurrent recovery delay; A12 overcurrent action delay; A13 voltage calibration; A14 repeated overcurrent event setting; A15 current calibration; End.
Manual switching, fault review and reset
The power key switches the protected output manually. OFF is shown when the output is switched off. The voltage threshold menus include OFF positions to disable the corresponding voltage-protection function. Hold the up key to review the most recent fault, and use the down-key factory-reset function to restore settings. Check the protection settings before reconnecting equipment after a reset.
Plug and outlet options
The EU version has the illustrated earthed round-pin plug and EU outlet. The UK version has a rectangular three-pin plug and a universal-pattern outlet. The US version has the illustrated flat-pin plug and matching outlet. The big South Africa version uses three round pins and the corresponding outlet pattern. Select the version by its physical contacts and local installation requirements.
Dimensions and installation
The illustrated UK version measures 122mm high, 55mm wide and 86mm deep including the plug. Insert the protector into a compatible supply socket and connect one appliance to the protected outlet. Keep the display and controls accessible and the enclosure dry and ventilated.
Applications
Use the protector for compatible household and equipment loads that need voltage/current monitoring and delayed automatic reconnection. Coordinate the adjustable settings with the connected equipment, starting current and supply conditions. Provide the required upstream circuit and residual-current protection.
