Seaward Testers

Thorne & Derrick | Distributed from Stock | Approved Seaward Supplier | UK & Export Sales | Seaward Testers
Seaward Testers | Electrical Safety Test Equipment
Manufactured by Seaward, their range of Seaward Testers and Seaward Voltage Detectors, premium electrical safety equipment for testing, designed to ensure high performance and a safer working environment within electrical installations. The complete range of Seaward Testers covers Solar PV Testers (photovoltaic panels), Airfield Ground Lighting Testers, Discharge Rods, Live Line Testers & Voltage Detectors.
Seaward Testers Solar PV installation and testing equipment cover the importance of through testing and commissioning a solar panel to ensure it’s functioning correctly and efficiently. Thorne & Derrick’s range of Seaward Testers can aid the identification of any issues with Solar PV Cables before they become major issues. Using Seaward‘s testing instruments, either as part of your routine inspections or for troubleshooting issues allows you to decrease potential downtime and improve the efficiency of your solar maintenance tasks.

Seaward PV200 | Seaward AGL-5 | Seaward Solar Utility Pro | Seaward PV1525 | Seaward LLT | Seaward PV150 | Seaward 11kV Discharge Rods | Seaward 33kV Discharge Rods
As well as Solar Testers & Voltage Detectors, Seaward Testers are specialists in a diverse range of electrical devices, such as Portable Appliance Testers, Medical Device Testers, OEM Solutions and more.
Seaward Solar PV Testers
The Seaward Testers Solar PV devices are safe and easy-to-use, designed to measure and analyse the electrical performance of solar photovoltaic panels (PV) with Solar Cable installation, allowing for identification of potential issues, verify system efficiency and diagnose issues by testing key parameters like voltage, current, power output, and I-V curve characteristics, ensuring the system is functioning correctly.
Thorne & Derrick are stockists and approved suppliers for the complete Seaward Testers Solar PV range, which provide the ideal solution to Solar Cables testing, applied with Thorne & Derrick’s extensive selection of LV MV HV Solar Cables, Accessories, Substation & Electrical Equipment, including market-leading Solar Cables, such as:
- Leoni SOLARPower Alu-ATA Low Voltage Installation AC Cable
- Top Cable TOPSOLAR PV H1Z2Z2-K Solar PV String Cable
- Prysmian TESCUN H1Z2Z2-K Solar PV String Cable
Seaward PV150
In a safe and easy-to-use testing device, the Seaward PV150 Solar PV Seaward Testers ensures electrical safety and performance verification of photovoltaic installations. The Seaward PV150 kit features a safe test connection to efficiently test energised arrays. The Solar PV Tester can also wirelessly capture and record real time irradiance, ambient temperature and PV module temperature measurements from the Solar Survey 200R. The Seaward PV150 has been designed to better support the testing of PV modules with recent technology advances.
Seaward PV150 offers an Open Circuit Voltage Measuring Range of 5.0VDC – 1000VDC and a Short Circuit Current Measuring Range of 0.50ADC – 15.00ADC (with a maximum power of 10kW). The instrument weighs 0.95kg/2.1lbs, with dimensions of 26.4 x 10.7 x 5.8cm/10.4 x 4.2 x 2.3”.
Seaward PV200
The Seaward PV200 are compact & cost effective PV Solar Seaward Testers with I-V curve tracer that uses simple push button operation, allowing for electrical safety. 999 datasets can be stored on the Seaward PV200 and analysed once downloaded to the SolarCert software. The Solar PV Tester measures ground (earth) continuity, open circuit voltage, short circuit current, maximum power point voltage, current and power (with AC/DC clamp). The instrument will also give you the fill factor of the PV module or system under test.
Seaward PV200 offers an Open Circuit Voltage Measuring Range of 5.0VDC – 1000VDC and a Short Circuit Current Measuring Range of 0.50ADC – 15.00ADC (with a maximum power of 10kW). The instrument weighs 0.95kg/2.1lbs, with dimensions of 26.4 x 10.7 x 5.8cm/10.4 x 4.2 x 2.3”.
Seaward Solar Utility Pro
The Seaward Solar Utility Pro PV Solar Seaward Testers takes PV testing to the next level. Offering more efficient 1500V modules and inverters, Seaward have answered the industry call for an easy to use and robust tester with 1500V capabilities. The market leading 40A current capability enables the Seaward Solar Utility Pro to test parallel wired strings up to a maximum of 1500V / 40A, eliminating the time consuming task of separating strings to keep within lower limits of other instruments.
Seaward Solar Utility Pro offers an Open Circuit Voltage Measuring Range of 5.0VDC – 1500VDC and a Short Circuit Current Measuring Range of 0.50ADC – 40.00ADC (with a maximum power of 45kW).
SolarCert PV Reporting Software For Seaward Testers

SolarCert PV Reporting Software | Seaward Testers
Designed for Seaward‘s premium range of Solar PV Testers, the SolarCert PV Reporting Software allows for seamless data downloading from the Seaward PV150, Seaward PV200 & Seaward PV1525 solar photovoltaic (PV) testing instruments.
SolarCert Benefits & Advantages
- Produce easy to read and professional reports
- Convert measured data from your Seaward PV200 to STC for comparison with manufacturer’s data
- Display and compare I-V and power curves
- 14 day free trial available to download
- Compatible with Windows & OS
The following video provides a further insight on How To Use Seaward’s SolarCert PV Reporting Software for I-V Curve Reports, including report setup, file importing, solar testers selection, organising test data, report creation and finalising a SolarCert report.
Seaward
Established in 1982 | Electrical Safety Test Equipment
Seaward Testers, holding an extensive distribution network in the UK, have proudly manufactured premium electrical safety test equipment to customers across the world in order to ensure a safer working environment, ultimately making huge strides in the cutting edge of electrical safety testing, producing a number of world firsts. In particular, Seaward are renowned for their commitment to continuous product development, innovation, expert knowledge and is the global market leader in Portable Appliance Test Instruments (PATS) and associated accessories, such as PAT software.
Thorne & Derrick distribute the most extensive range of Electrical Safety Equipment to accompany the Seaward Solar PV Testers, Voltage Detectors & Discharge Rods including electrical safety testing equipment from Seaward to ensure safe working and protection against electrocution during the installation, jointing, terminating and testing of medium/high voltage power cables and electrical equipment including switchgear and transformers. Seaward focus on safety with their portfolio of portable appliance testers, Solar PV Testers and medical device test equipment.