Seaward PH3 Proving Unit for High Voltage Indicators
High Voltage Proving Unit for Safe Voltage Indicator Verification
The Seaward PH3 High Voltage Proving Unit (112A913) is designed for high-voltage electrical engineers, utility technicians and power distribution professionals who need a safe and reliable method of proving high-voltage indicators before and after use. This portable battery-powered proving unit generates a DC output voltage to verify the correct operation of voltage indicators, live line testers and digital potential indicators, helping to support safe isolation and high-voltage testing procedures.
Designed for High Voltage Safety Compliance
The PH3 eliminates the need to use known live supply points or bulky test equipment when checking voltage indicators. Producing a high-voltage DC output between 1200V and 1500V, it provides a convenient proving solution for compatible Seaward voltage indicators and phasing rods fitted with domed contact electrodes. A built-in self-test facility provides additional confidence that the proving unit is functioning correctly before use.
Why choose the Seaward PH3?
The Seaward PH3 provides a simple and dependable way to verify the functionality of high-voltage indicators in the field. Its compact battery-powered design, self-test capability and compatibility with a wide range of Seaward voltage indicators make it an essential safety accessory for engineers working on high-voltage electrical systems.
Order today to enjoy free delivery, expert support and our 90-day satisfaction guarantee. Need advice? Our team is here to assist you.
Why choose Instrotech for your electrical test equipment?
With over 40 years’ experience supporting UK electricians, technicians and engineers, Instrotech is your trusted partner for quality tools and expert service. When you purchase from us, you benefit from:
Free UK shipping on all orders
Access to our knowledgeable technical support team
Available calibration services to maintain safety compliance
A 90-day money-back guarantee for complete peace of mind
We’re committed to helping you work safely and efficiently with industry-leading products and ongoing support.
